services - H&O Die Supply, Inc. MAKER/16 - Urethane/Acrotech... · of liquid casting. Molds are...

AEA

H&O Literature Stamp

services

2

Our machine shop offers the capabilities for secondary machining to tight tolerances and profiling.

Several K•Prene® formulations are FDA Approved for use in food processing and medical industry applications.

K•Prene® polyurethane can be cast onto the metal inserts and achieve excellent adhesion.

For less demanding needs - AcroKast® offers the rigidity of a structural plastic and the cost-effectiveness of liquid casting.

Molds are designed and produced in-house allowing us to control every detail.

Shafts and hubs up to 8 feet long can be recycled by removing worn-out material and recovering with quality K•Prene® urethane.

Any size or shape insert can be produced by our state-of-the-art machine shop.

Specialty Processing– Different durometers can be bonded together.

The casting process of polyurethane allows Acrotech to cost-effectively

produce part volumes ranging from one to one hundred thousand, and

can range in size from less than a cubic inch to over

400 pounds!

Andy Oliver – President Acrotech, Inc

Our manufacturing process involves casting and compression molding of K•Prene® urethane. This means Acrotech can produce parts cost-effectively, compared to machining or injection molding. Acrotech’s stocked products include several industry-specific parts in addition to sheets, round rods, bars, Versa Rolls™, several types of bumpers and much more. These items are stocked in 6 different durometers/hardnesses in a variety of sizes. We also offer custom molding of K•Prene® urethane; including mold construction, production of metal inserts and secondary machining.

One Location, Multiple Services…

Available from H&O DIE SUPPLY, INC. • [email protected] • www.hodie.com • 800-222-5441

custom

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Acrotech’s modern equipment capabilities offer custom machining from start to finish of many materials such as: Cold Finish and Hot Rolled Steel, Stainless Steel, Aluminum, Brass, Bronze, Tool Steel, Alloy Steel, and Composites such as Delrin, UHMW, Acetal etc.

Custom Machining Capabilities To Your Specs!

Need a new part?

Want to improve an existing part?

Need one part for maintenance?

Need one thousand parts for production?

Custom Molding

From conception to completion, Acrotech Inc. can help with design considerations, material formulation, secondary operations and mold design and manufacture! Because of low mold costs compared to other molding procedures, custom molding with K•Prene® can be very cost effective for prototype through production. The molds are generally machined from steel or aluminum, depending on the application, or can even be cast from a flexible mold material using an existing part as a master.

This check valve ball and valve seat are made in several sizes to control flow in pump applications. Tremendous resistance to abrasion is required, along with the ability to withstand significant pressure. K•Prene® has surpassed the stainless steel components previously used!

“As a world leader in the manufacturing of solid pumping systems, it is critical for V-Ram to have the best materials in our systems. We have found that K•Prene® urethane balls and valve seats will easily handle the most severe abrasion requirements we encounter! Thanks for your part in helping V-Ram establish and maintain the industry standards.”

Sincerely, David Olson – President, V-Ram Solids

A long-time customer’s experience with Acrotech Inc.


contents

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Acrotech Services .................................................... 2

Custom Molding & Machining ................................. 3

Technical Information ...................................... 4 – 10

What is K•Prene®? ...........................................................

Stocked Inventory Dimension/Tolerances Chart ...........

Characteristics of K•Prene® ............................................

Physical Properties of K•Prene® ....................................

Compression & Deflection Charts of K•Prene® ..........

Shape Factor & Modulus of Elasticity...........................

Properties ..................................................... 11 – 12

Environmental Properties of K•Prene® ........................

Oil, Chemical and Solvent Resistance of K•Prene® ....

Machining/Applications of K•Prene® ............. 13 – 14

Application Chart of K•Prene® .......................................

Metal Forming ...................................................... 15

Roll Bending ................................................. 16 – 21

Benefits ..............................................................................

Models ...............................................................................

Art of Bending ..................................................................

Accessories ........................................................................

K•Prene® Products........................................ 22 – 29

Rods, Square & Rectangular Bars .................................

Precision Cast Sheets ......................................................

Metric Sized Products .....................................................

Tubes/Springs & Caps ....................................................

Washers Seals & Gaskets ...............................................

Bumpers ............................................................................

Versa Roll™ ................................................. 30 – 31

Custom Products .................................................. 32

Metal Backed Sheets .......................................................

Solid K•Prene® Urethane Balls ......................................

FDA Dry Food Approved Urethane ...............................

K•Prene® Press Brake Dies ................................... 33

Acroform Inserts ........................................... 34 – 35

Acro-Hyde™ for Press Brake Forming .........................

Punch Strippers .................................................... 36

SurStrip™ Punch Strippers .............................................

Wiedeman, Piranha & Di-Acro Punch Strippers .........

Urethane Parts for Piranha Ironworkers ......................

Custom Products .................................................. 39

Tool Holsters ....................................................................

Adhesive & Tape ..............................................................

Performance Products .......................................... 40

Spring Rubbers .................................................................

Wood Industry Products ............................... 41 – 43

Drive Wheels .....................................................................

Powerfeed Replacement Tires.......................................

Press Fit Tires ...................................................................

Recovery of OEM Hubs & Shafts ..................................

OEM Replacement Parts ................................................

Roller Manufacturing & Recovering ..............................

Terms, Conditions & Ordering Information ............. 44

These tolerances cover all stocked products, except where noted. Please advise factory if closer tolerance is required.

Round, Square & Rectangular BarsLength: +1/4 - 0O.D. +/-2% or +/-.010 (whichever is greater)

SheetsLength: +1/4 - 0Width: +1/4 - 0Thickness: +/-2% or +/-.010 (whichever is greater)

Stocked InventoryDimension Tolerances

K•Prene®, the Unequaled Urethane!

Our K•Prene® sample chains can be very helpful. Be sure to request one!

Custom formulations are available!Prices subject to change without notice.

We provide standard polyurethane materials from 10 Shore A to 85 Shore D Durometer. Our standard grades are polyether thermosets. We also produce polyesters and FDA materials.

What is K•Prene®?K•Prene® is the trade name for the various grades of urethane elastomers formulated specifically by Acrotech. The K•Prene® formulations were designed to “fill the gaps” between rubbers with characteristic resilience and structural plastics with characteristic hardness. The result is a functional toughness matched by no other available material in either natural or man-made form.

K•Prene® urethane elastomers have higher oil and solvent resistance and better thermal stability than most general purpose rubbers and plastics. They have greater abrasion and tear resistance in combina-tion with increased load bearing capacity than do the neoprene or natural rubbers. Their extensibility and impact strength are greater than those of most plastics materials.


technical info

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Duro

mete

r D

Rockw

ell R

Duro

mete

r A

Hardness Scale150

140

130

120

110

100

90

70

50

85

75

65

55

459590

80

70

60

50

40

30

20

10

Plastics

K•Prene®Urethane

Rubber

Phenolics

Acrylics

Nylons

Polystyrenes

Bowling Ball

Shoe Heel

Tire Cord

Rubber

K•Prene® Urethane CharacteristicsTDI and MDI chemical structures, both are available in polyether and polyester formulas.

We manufacture over 25 formulations on a daily basis.

Hundreds of other formulations are available to meet your most demanding application.

Broad hardnesses ranging from 10 Shore A to 85 Shore D Durometer.

6 standard colors, CUSTOM COLORS ARE AVAILABLE.

Selecting K•Prene® for limitless applicationsUrethane provides a unique combination of properties. These include: high load-bearing capacity; toughness; hardness; abrasion resistance; and oil and ozone resistance.

Stocked Durometers/Hardnesses

K-400A K-600A K-800A K-900A K-950A K-750D

K-400A Yellow 40A Durometer: A low durometer material with a high coefficient of friction that will satisfy countless industrial needs such as rollers, bumpers, etc.

K-600A Black 60A Durometer: High coefficient of friction and excellent tensile strength makes this material a good choice for feed rolls and many other industrial applications.

K-800A Orange 80A Durometer: Good tear strength, abrasion resistance and excellent flex life. Good low temperature properties. Requires lower tonnage. Withstands greater deflection. Should not be used for material heavier than 20 gauge mild steel, except in special applications. Maximum recommended deflection 35%.

K-900A Blue 90A Durometer: Withstands consistent flexing. Good cut resistance. Good load-bearing capacity. Recommended for most applications where large radius bends or difficult bends require large deflection or flow of K•Prene®. Maximum recommended deflection 25%.

K-950A Red 95A Durometer: High tensile strength for higher blank-holding pressure. High load-bearing capacity. Best tear strength. Best cut resistance. Best abrasion/wear resistance. Recommended for most applications. Maximum recommended deflection 15%.

K-750D Brown 75D Durometer: Great load- bearing capacity. Excellent machinability and abrasion resistance. Offers great rigidity, yet will deflect. Maximum recommended deflection 5%.


technical info

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Physical Properties of K•Prene® Urethane

ASTM STD. K-400A K-600A K-800A K-900A K-950A K-750D

Hardness, Shore A D-2240 40 60 80 90 95 —Shore D D-2240 — — — 43 50 75

Tensile Strength, (PSI) D-412 500 3500 3000 5500 6500 9700Elongation, % D-412 510 530 800 430 380 250100% Modulus, (PSI) D-412 90 280 400 1100 1800 4900300% Modulus, (PSI) D-412 200 390 625 2200 4300 —Tear Strength, Split, lb./in. D-470 20 25 70 90 130 115Tear Strength, Die C, lb./in. D-624 80 180 400 600 700 770Abrasion Resistance,NBS Index D-1630 45 110 175 300 475Impact Resistance(Izod) ft. lb./in. D-256 — — — — — 5Compression Set,Method B, % D-395 38 6 45 30 36 —Compression Set,Method A, % D-395 — — — — — 15Bashore Resilience, % D-2632 8 32 60 42 40 44Bell Brittle Point, F. D-2137 — -70 <-130 <-80 <-80 <-83Coefficient of Friction D-1894 0.55 0.45 0.30 0.11Compression Modulus,5%, (PSI) D-575 13.3 40 150 272 515 1796Compression Modulus,10%, (PSI) D-575 28.2 80 274 530 982 4509Compression Modulus,15%, (PSI) D-575 43.8 130 378 735 1372 5996Compression Modulus,20%, (PSI) D-575 — 180 492 940 1811 7266Compression Modulus,25%, (PSI) D-575 82.7 240 641 1240 2358 8433Specific Gravity D-792 — 1.16 1.08 1.11 1.13 1.21


technical info

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Urethane…Compared with Natural & Synthetic RubbersNATURAL SBR or BUTYL NITRILE NEOPRENE URETHANERUBBER BUNA S isobutylene (BUNA N) chloroprene

butadiene styrene isoprene butadiene acrylonitrillePROPERTIES

Tensile Strength, (PSI) Pure Gum Over 3000 Below 1000 Over 1500 Below 1000 Over 3000 1000 – 10,000Tensile Strength, (PSI) Over 3000 Below 1000 Over 1500 Below 1000 Over 3000 Black Loaded StocksHardness Range (Durometer A) 30-90 40-90 40-75 40-95 40-95 33-95 + (75 shore D)Specific Gravity (base material) 0.93 0.94 0.92 1.00 1.23 1.10Vulcanizing Properties Excellent Excellent Good Excellent Excellent ExcellentAdhesion to Metals Excellent Excellent Good Excellent Excellent ExcellentAdhesion to Fabrics Excellent Good Good Good Excellent ExcellentTear Resistance Good Fair Good Fair Good OutstandingAbrasion Resistance Excellent Good to Excellent Good Good Excellent OutstandingCompression Set Good Good Fair Good Fair to Good GoodCompression Set Cold Excellent Good Bad Good Very Good FairRebound Hot Excellent Good Very Good Good Very Good GoodElectric Strength Excellent Excellent Excellent Poor Good ExcellentElectrical Insulation Good to Excellent Good to Excellent Good to Excellent Poor Fair to Good Fair to GoodPermeablity to Gases Fair Fair Very Low Fair Low Fair to GoodAcid Resistance: Dilute Fair to Good Fair Excellent Good Excellent Fair to Good

Concentrated Fair to Good Fair to Good Excellent Good Good PoorSolvent Resistance: Aliphatic Hydrocarbons Poor Poor Poor Excellent Good Excellent Aromatic Hydrocarbons Poor Poor Poor Good Fair Fair to Good Oxygenated (ketones, etc.) Good Good Good Poor Poor Poor Lacquer Solvents Poor Poor Poor Fair Poor Poor Swelling in Lubricating Oil Poor Poor Poor Very Good Good Excellent Oil and Gasoline Poor Poor Poor Excellent Good Excellent Animal and vegetable Oils Poor to Good Poor to Good Excellent Excellent Good Water Absorption Very Good Good to Excellent Very Good Fair to Good Good Good @ room temp.

Poor @ 212° F.Resistance to: Ozone Fair Fair Excellent Fair Excellent Outstanding

Sunlight Aging Poor Poor Very Good Poor Very Good Good Heat Aging Good Very Good Excellent Excellent Excellent Good Flame Poor Poor Poor Poor Good Fair Heat Good Excellent Excellent Excellent Excellent Good Cold Excellent Excellent Good Good Good Excellent

Oxidation Good Good Excellent Good Excellent Excellent

Tension and Compression Comparisons: Most rubber materials have high elongation but low tensile strength.To obtain greater tensile strength in rubbers, fillers are added with a resultant loss in its ability to elongate. K•Prene® has both high tensile stress properties and high elongations, even in the harder grades. K•Prene® has far greater load bearing capacity than do conventional elastomers of comparable hardness which is an important advantage in many areas such as metalworking dies, shock mounts and springs.

Neoprene at 65 Shore A Natural Gum at 50 Shore A Natural Rubber at 76 Shore A*

Tens

ile S

tres

s (P

SI)

Com

pres

sive

Str

ess

(PSI)

100

8,000

6,000

4,000

2,000

200 300 400 500 600 700

500

1,000

1,500

10 15 20 255

Stress/Strain in Tension Stress/Strain in Compression

Deflection (%)Elongation (%)

K-950A

K-950AK-900A

K-750D

K-900A

K-800A

Natural Rubber*50 phr black

Natural Rubber*50 phr black

Neoprene

Neoprene*

Natural Gum

Natural Gum*


technical info

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K•Prene® has a far greater load-bearing capacity than do conventional elastomers of comparable hardness, which permits the design of smaller parts with savings in weight and material cost. The graph (to the right) compares the compressive stresses required to deflect samples of the four standard grades of K•Prene® by up to 50%. When selecting K•Prene® urethane for certain applications such as metal forming, major consideration should be given to two factors: Shape Factor and the Modulus of Elasticity.

Compression – Deflection

Com

pres

sive

Str

ess

(PSI)

Deflection (%) (ASTM D575)

8,000

6,000

4,000

2,000

10 20 30 40 50

Stress/Strain in Compression

K-950A

K-750D

K-900A

K-800A

Modulus of ElasticityThe Modulus of Elasticity, E, is defined as the force per unit area (stress) divided by the percentage of the change in height (strain); or:

For many of the common engineering materials, such as steels, E is a specific value that remains consistent within the elastic range of the material. With urethane, however, the E value changes with each specific compound. (See curve on page 9).

The test data for those curves was determined over a two year period. Testing was conducted under controlled conditions, and the data reflects the variation of E vs. Shape Factor for three K•Prene® grades with dry and lubricated surfaces.

The curves represented a statistical average of the test results, and are offered as a guide to help the engineer predict his forces, size and grade of urethane required, or percent deflection.

Other Engineering ConsiderationsHeat build -up, due to internal friction (hysteresis effect), is the most common cause of premature failure of urethane. The amount of heat generated is a direct function of degree of deflection. Thus, in selecting K•Prene® materials minimize the percentage of deflection for longer life.

K•Prene® urethane can withstand temperatures up to 250° F., although it may soften before that point and lose some load-bearing capacity. However, upon cooling, it will return to its original physical characteristics. The urethane will also withstand temperatures down to -80° F.

Lubricated or dry condition of load-bearing area is another factor that affects the stress-strain relationship. For urethane compressed between parallel plates, there is a tendency for the surface to spread laterally. While a clean, dry loaded surface offers some resistance to this lateral movement, a lubricated surface will offer essentially none. If extremely high pressures are required, lateral movement can be prevented by bonding the urethane to metal with double-faced tape or K-20 adhesive.

Cut resistance of K•Prene® urethane is very high. However, placing it near a sharp metal edge or permitting it to bulge over a sharp edge should be avoided. With forces involved, the urethane may fail due to cutting or fracturing.

The Shape FactorThe Shape Factor accounts for urethane blocks or cylinders bulging at their sides when under a compressive load. Increasing the area that is free to bulge decreases vertical displacement, or for the same displacement requires greater force.

The concept of Shape Factor is numerically defined as the area of one loaded surface divided by the total area of the unloaded surfaces that are free to bulge. Dimensionally, this may be written as:

These equations are limited to:

1) Pieces which have parallel loading faces.

2) Pieces whose thickness is not more than twice the smallest lateral dimension.

S.F. = l w2t (l + w)

E = F/A H/HT

S.F. = d4h

for rectangular shaped blocks

for solid discs and cylinders

Where: l = length, w = width, t = thickness, d = diameter, h = height.

Where: F = force, A = area, H = change in height, HT = total height.

OR,


technical info

9

OR,

How to use the CurvesIn solving problems, the engineer should first determine the Shape Factor using the formula previously introduced, and assume a particular size of urethane pressure pad.

Having once determined the Shape Factor, the engineer can then select the appropriate grade of K•Prene® urethane, and come horizontally across on the chart to find E. With the Modulus of Elasticity known, one can then apply the basic formula of E to solve for either force or percentage of deflection. That is:

*For deflections more than 20%, E must be modified by the multiplier derived from the small curve. For deflections equal to or smallerthan 20%, this multiplier is one.

Note: Solutions for “force” or “percentage of deflection” using these equations should be accurate to within ± 10% of actual values. Be sure to allow for this margin of error in problem solving.

F = H HT

% Deflection = H FHT AE*

AE• or (% Deflection) AE*

Variation of Modulus with Shape Factor(Inset Curve for Greater Than 20% Deflection)

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,00010,000

15,000

20,000

25,000

30,000

40,000

K-950D Lubricated

K-900A Lubricated

K-800A Lubricated

.1 .15 .2 .25 .3 .4 .5 .6 .7 .8 .9 1.0 1.5 2.0 2.5 3.0 4.0 5.0

K-950A

K-900A

K-800A

Modu

lus

of

Ela

stic

ity,

(E–P

SI)

Shape Factor

201.00

1.05

1.10

1.15

1.20

24 2822 26 30

Mul

tipl

ier

% Deflection


technical info

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Electrical PropertiesK•Prene® has been used successfully for potting and encapsulation at frequencies up to 100 kilocycles and at temperatures up to 212° F. (Typical electrical properties are shown below).

Abrasion ResistanceK•Prene® has outstanding abrasion resistance and can outlast conventional rubbers and plastics which leads to many important applications where severe wear is a problem. The selection of K•Prene® for these end uses is normally based on service tests, since laboratory abrasion tests can be misleading. In actual use K•Prene® has demonstrated more than eight times the abrasion resistance of ordinary rubbers and plastics.

Coefficient of FrictionK•Prene® has a low, unlubricated coefficient of friction which decreases sharply with the harder grades such as K-750D. This property, in combinations with superior load bearing ability and abrasion resistance, makes K•Prene® desirable for use in bearings and bushings.

Tension PropertiesMeasurements of tensile strength for K•Prene® are not used as frequently by the design engineer as compression measurements. This is because the elastomer is used less frequently in tension. On the other hand, tension tests are commonly used by the rubber compounder and are almost universally used to establish the general performance characteristics of the elastomer. (Tensile stress-strain curves for various grades of K•Prene® are shown above). Note that they possess high strength even at low elongations, and that hard grades as well exhibit good elongation.

AdhesionDuring fabrication of composite parts, K•Prene® can be readily adhered to many metals, elastomers and plastics to form a bond that is often stronger than the elastomer itself. Also, because of its hardness and rigidity, K•Prene® components can be mechanically fastened to metal, wood, or concrete structures with practical results.

Flex PropertiesK•Prene® will resist cracking under repeated flexure and accordingly finds successful use in many dynamic applications such as flexible hoses and couplings. In all elastomers the rate of cut growth can be reduced by decreasing the thickness of the part, normally with a corresponding loss in strength. With K•Prene®, however, thin sections can be used effectively because of this elastomer’s exceptional strength and toughness.

Impact ResistanceK•Prene® has significantly better impact resistance than structural plastics. All grades of K•Prene® including the hardest grade K-750D show good impact resistance at low temperatures and low brittle points.

Tens

ile S

tres

s (P

SI)

8,000

6,000

4,000

2,000

100 200 300 400 500 600 700

Elongation (%) - (ASTM D412-61T)

Stress/Strain in Tension

K-950A

K-750D

K-900A

K-800A

Typical Electrical Properties of K•Prene®

Temp. 0.1 kc 100 kc

Power factor 75° F. 4.7 5.9 (ASTM D150 - 59T) 158° F. 4.7 —

212° F. 12.6 3.9

Dielectric constant (SIC) 75° F. 9.4 7.8

(ASTM D150 - 59T) 158° F. 11.0 —

212° F. 11.5 9.9

DC Vol. resistivity, ohm-cm 75° F. 4.8 x 1011 (ASTM D150 - 59T) 158° F. 3.8 x 1010

212° F. 2.3 x 1010

DC Vol. Resistivity, ohm-cm 450 - 500 (ASTM D149)

Arc resistance, seconds 73 - No carbon (ASTM D495) tracking


properties

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The superior mechanical properties of K•Prene® urethane are not greatly affected by many environmental influences. In comparison with other elastomers, K•Prene® shows outstanding performance over a wide temperature range. K•Prene® exhibits excellent resistance to most common lubricants and aliphatic solvents, and has outstanding water resistance.

THIS SECTION COVERS THE EFFECTS UPON K•PRENE® OF NORMALLY ENCOUNTERED ENVIRONMENTAL INFLUENCES.

Cold ResistanceK•Prene® remains flexible at very low temperatures and possesses outstanding resistance to thermal shock. Standard grades remain flexible at temperatures below -80°F., although stiffening does occur as the temperature is reduced below 0°F. Special compositions can be formulated which retain a degree of flexibility at temperatures as low as -125°F.

Heat ResistanceK•Prene® can be used for service applications at temperatures up to 200-250°F., with only a minor decrease in physical properties as tested at ambient temperatures (75°F.).

Use of K•Prene® above 250°F., even if only intermittent, is not recommended and each contemplated use at 200°F., or above should be evaluated individually beforehand.

Resistance to AgingProperly compounded products of K•Prene® are not affected by the passage of time under static ambient temperature conditions. This statement can be substantiated by data on specimens stored for periods of six years or more. Prolonged use in normal service is not a problem, nor is there any indication of shelf aging.

However, the introduction of certain other environmental influences combined with the passage of time can accelerate deterioration. For instance, chemical agents or dynamic forces acting upon a K•Prene® product over a period of time can intensify the aging process.

Normally in multiple attacks such as these the effects strictly due to aging may be so masked as to become unrecognizable.

Water ResistanceK•Prene® is resistant to the swelling and deteriorating effects of immersion in water and has excellent long term stability in water at temperatures as high as 120°F. Tests show that even after immersion in water for as long as one year at 120°F., a typical grade retained 75% of its original tensile strength.

The chemical structure of K•Prene® gives us an excellent hydrolytic stability such that a mixture of water and oil will have no greater effect on the elastomer than water by itself.

Weatherability and Color StabilityProlonged exposure to ultraviolet light will gradually degrade physical properties of K•Prene®. For applications in which long term UV exposure is required, special formulations are available.

OutgassingProducts made from K•Prene® are very stable under high vacuum conditions. They show extremely low weight losses in standard outgas-sing tests. This property, combined with excellent low temperature performance, suggests logical applications in the aerospace field.

Flame ResistanceAll K•Prene® grades are either extremely slow burning or self-extinguishing as tested in accordance with ASTM 0635. It is possible to obtain special compounds containing flame retardants which are completely non burning under test conditions.

Mold, Mildew, Fungus ResistanceStandard compounds of K•Prene® do not support fungus and are generally resistant to fungus attack and mildew growth. Samples buried for one year in moist inoculated soil showed no evidence whatever of attack, and the vulcanizate properties were essentially unchanged.

Oxygen and Ozone ResistanceK•Prene® resists oxidation and is immune to the powerfully destructive attack of ozone. Oxygen and ozone in atmospheric concentrations have no observable effect on K•Prene®. In one test specific, K•Prene® grades were exposed to three parts per million ozone under 20% static strain conditions for 500 hours with no signs of surface cracking or crazing. It is this property in combination with insulating electrical properties that makes K•Prene® ideal for use around electrical equipment where ozone concentrations are highest.

Likewise, stress-strain properties of K•Prene® are little changed after oxygen exposure for four weeks at 158°F., under 300 PSI oxygen pressure.

Environmental Properties of K•Prene®


properties

12

Radiation ResistanceK•Prene® urethane has excellent resistance to the damaging effects of gamma ray radiation in comparison with other elastomers and plastics. Products of K•Prene® appear capable of giving satisfactory service even when exposed to high gamma ray concentration of up to 100 megaroentgens. They are more resistant than are other elastomers to stress cracking and retain a great amount of their original flexibility and physical toughness while exposed to gamma radiation. As a result, K•Prene® can be used to provide radiation protection in atomic reactor installations, x-ray laboratories, and aerospace facilities.

Oil and Solvent ResistanceOil resistance is the ability of a part to retain utility in contact with oil. There are two effects which commonly occur. The first is a change in dimensions or swelling, and the second is deterioration of the material’s original properties.

K•Prene® has excellent oil resistance which makes its products particularly suitable for service in the presence of lubricating oils and greases. K•Prene® will resist animal fats and oils, waxes, greases, and most aliphatic hydrocarbons. Aromatic hydrocarbons and polar or chlorinated solvents have a moderate to severe effect on K•Prene®.

It is recommended that tests be made beforehand if the application under consideration will involve direct contact with oils as sometimes oil additives attack the material.

Chemical ResistanceThe best way to determine whether or not the product will be entirely satisfactory for a given application is to test it in actual service. Where this is not practical, simulated tests should be devised to duplicate actual service conditions as closely as possible. Acrotech should be provided with complete details on the conditions involved or the intended application to insure that the parts are correctly compounded and processed to provide successful resistance against chemical attack.

The A, B and C ratings (in the table below) are based upon data from laboratory tests and records of actual service performance. Where specific information is not available, T and X ratings are indicated. These are educated guesses based upon experience and a familiarity with the chemistry involved. T means, “Test before using but most likely to be satisfactory”. X means, “Most likely to be unsatisfactory”.

Unless otherwise noted, all ratings are at room temperature and the concentrations of all aqueous solutions may be considered saturated. In the case where parenthetical temperatures are listed, they refer to temperatures actually used in tests or service applications, but do no necessarily represent temperature limits.

Oil, Chemical and Solvent Resistance of K•Prene®

Rating Chart Key (see chart to the right)

CHEMICAL RATING

Acetic acid, 20% BAcetone CAluminum chloride solutions TAmmonia, anhydrous TAmmonium hydroxide solutions AASTM hydrocarbon test fluid TASTM oil No. 1 (158°F.) AASTM oil No. 3 (158°F.) BASTM reference fuel A AASTM reference fuel B (122°F.) BASTM reference fuel C CBarium hydroxide solutions ABenzene CBorax solutions ABoric acid solutions AButane ACalcium bisulfite solutions ACalcium chloride solutions TCalcium hydroxide solutions ACalcium hypochlorite, 5% TCarbon dioxide ACarbon monoxide ACarbon tetrachloride CCastor oil AChlorine gas, dry XChlorine gas, wet XChromic acid, 10-50% XCopper chloride solutions ACopper sulfate solutions ACottonseed oils ACyclohexane ADOWTHERM A BEthyl acetate CEthyl alcohol CEthylene glycol BFormaldehyde, 37% XFormic acid XFREON-11* BFREON-12* (130°F.) AFREON-22* CFREON-113* AFREON-14* TFuel oil BGasoline BGlue AGlycerin An-Hexane (122°F.) BHydraulic oils BHydrolic acid, 20% BHydrochloric acid, 37% X

CHEMICAL RATING

Hydrogen AHydrogen peroxide, 90% TIsooctane (158°F.) BIsopropyl ether BJP-4 CJP-5 CJP-6 XKerosene CLacquer solvents XLinseed oil BLubricating oils BMagnesium chloride solutions AMagnesium hydroxide solutions AMercury AMethyl alcohol CMineral oil ANaphtha BNaphthalene BNitric acid, 10% COleic acid BPalmitic acid APerchloroethylene CPhenol CPhosphoric acid, 20% TPotassium hydroxide solutions ASEA No. 10 oil (158°F.) ASKYDROL 500 CSoap solutions ASodium hydroxide, 20% TSodium hydroxide, 46.5% ASodium hypochlorite, 5% TSodium hypochlorite, 20% XSoybean oil BStearic acid ASulfur dioxide, liquid TSulfur dioxide, gas TSulfur trioxide TSulfuric acid, up to 50% TSulfuric acid, 50-80% CSulfurous acid TTannic acid, 10% ATartaric acid AToluene CTrichloroethylene CTricresyl phosphate BTrisodium phosphate solutions ATung oil BTurpentine CWater (122°F) A

A GENERAL GUIDE FOR THE EXPOSURE OF K•PRENE® ELASTOMERS TO A WIDE RANGE OF CHEMICALS IS PROVIDED BELOW. THIS TABLE SHOULD BE USED AS A GUIDE ONLY. Other requirements for satisfactory performance must be considered, such as operational temperature ranges, aeration, length of time exposed, and other pertinent factors.

Little or no effect ..................................................................................AMinor to moderate effect ...................................................................BSevere effect to complete destruction..............................................CTest before using. No data but most likely to be satisfactory ........TNo data but most likely to be unsatisfactory...................................X *FREON is a registered trademark of E.I. du pont de Nemours & Co. (inc.)


machining

13

Machining Recommended Size Maximum Workholding Applications Tools Limitations Speeds Recommendations Suggestions

Bandsawing

CuttingShearingSlitting

Drilling

Tapping

Turning Boring

Grinding

Knifing

Milling

Sharp 2-4 hook carbide blade with raker set.

Shears or belt-cutting machines with up to 1/8" knife blade.

High speed 90° + twist drills with blunt point.

Regular high speed taps.

H.S.S. tool bits with positive rake of 5°-10°.

Tool post grinder 20-80 grit wheel.

Carbide or H.H.S. razor sharp and as thin as possible.

Sharp single-blade flycutters with 10° back rake and good clearance.

Max. 8" thick Min. 1/8" thicksheets.

Thin sheets (up to 1/2").

Min. of 3/8" (no minimum if clamped between steel).

None

No limits on dia. length restricted (long soft bars may flex).

Min. 3/8" thick

1800 ft./min. (reduce to 1200 ft./min below K-900A).

600-800 RPM

800 surface ft./min.

Lathe–150 RPM or lower.Grinder–2000-3500 RPM.

600-1000 RPM

Approx. 2000 surface ft./min.

Vises or clamps (Not required with flats or sheets).

Friction clamps.

Vises or clamps.

Vises or clamps.

Angle of cut to work: 90° - 120°.

Fixtures or friction mandrels.

Fixtures or friction mandrels.

Vise or double-face clamping tape.

• Rotate rounds when sawing.

• Maintain high blade tension.

• Use bevel edge blades (square degree, com-press urethane, resulting in uneven cuts).

• Good tolerances possible with K-750D, for other grades use over-size drills.

• Except for K-750D, use over-size tap to allow for shrinkage or urethane.

• Form tools may be used (especially when machining K-750D).

• Air blast to eliminate build up.

• Use lubricant to help prevent dishing.

• Flycutting at approx. 3" dia. give best results.

Modulus of ElasticityUrethanes are resilient and can be easily distorted, so care must be taken to avoid distortion due to holding or cutting forces.

Softening PointGumming, poor finishes and poor dimensional control will readily occur if excess heat is generated and allowed to accumulate. Proper tool geometry, feed rates and cutting speed in conjunction with coolants can usually overcome these problems. Water-soluble cutting oils and/or light machine oils are good coolants for urethanes.

Lower Thermal ConductivityHeat generated by the cutting tools stays close to the tool and raises the urethane temperature rapidly. This heat must be controlled. Melting can occur above 350° F.

Elastic MemoryElastic recovery occurs in urethanes both during and after machining, so the cutting tool must provide clearance to compensate accordingly. Without compensation, expansion of the urethane after cutting will result in increased friction between the cut surface and the cutting tool. Excess heat build-up will result. Elastic recovery after machining can result in smaller internal diameters or larger external diameters than were measured during cutting.

Machining of K•Prene®Machining of K•Prene® urethane proves useful when the required tolerances cannot be obtained by conventional molding methods, or when low production runs do not justify the cost of molds. We maintain a complete inventory of sheets, round rods, and bars in six different hardnesses which can often be used to make prototypes or limited production quantities.

The table below details the general machining characteristics of K•Prene® urethane K-900A durometer and harder. For K•Prene® urethane below K-800A durometer, cutting tools are often not satisfactory and grinding may be required. In some cases, machinability can be improved by freezing K•Prene urethane below K-800A durometer with dry ice or liquid nitrogen.

Machining of K•Prene® urethane is similar to that of metals, and in most cases the same tools can be used. The principle differences between metal and urethane machining are:


appolications

14

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APPLICATIONS

Strippers, Springs • • • • Encapsulating & Potting • • •Molds • • •Tooling and Holding Fixtures • • • •Plungers • • •Pedals • •Hangers • • • Casters • • •Pulleys • •Oil Field Equipment • • • • • • • • •Pallet Wheels • • • • • •Seals, Oil • • • • • • • •Metalforming Pads & Dies • • • • • •Valve Seats • • • • • •Heels • • • • •Hammers & Mallets • • • • • • • •Drive or Friction Rolls • • • • • • Mounts, Shock Absorbing • • • • • •Belts (Light Drive) • • • • • • & Conveyor BeltsTiming Belts • • • • •Couplings • • • • • • • •Wheels & Industrial Tires • • • • • •Drives, Gear • • • • •Diaphragms • • • • •Bushings • • • • • •Packings • • • • •Bearings • • • • • • •Gaskets • • •Liners for Sheaves, • • • • • • Chutes & HoppersRotors (Pump) and Impellors • • • • • •Bumpers • • • • • •

K•Prene®… Unequaled Results in Many Applications

Industries Utilizing K•Prene® UrethaneAerospace

Agriculture

Appliances

Automation

Aviation

Business machines

Chemicals

Coated Fabrics

Construction

Consumer products

Electronics

Furniture

Industrial

Machinery

Marine

Medical

Metal Forming

Military/Defense

Mining/Quarrying

Oil

Paper

Plastic Products

Railroad

Research & Development

Recreation

Rubber Products

Spill Control

Textiles

Wheels/Tires

Loo

se to

lera

nces

& r

ough

mac

hini

ng o

n m

etal

par

ts


metal forming

15

Metal Forming Applications Using UrethaneMetal Forming Applications Using UrethaneWhy use K•Prene® urethane in forming applications? There are several families of urethane elastomers, but not all of them will perform equally well. Even within one grade of a given urethane formulation, cured properties can vary widely. K•Prene® urethane is specifically compounded and processed by Acrotech Inc., to maximize the characteristics desired for optimum tool and die operation. Some of the major advantages of urethane are non-compressibility, resiliency, and the ability to form and hold metal without marring its surface finish. It behaves similar to a solid fluid with a memory; under force it will change its shape, but its volume will remain constant. Urethane will produce high, uniform and continuous counter pressure under load. And, when the load is removed, it quickly returns to its original shape.

Application Examples where K-Prene® Urethane Can Be Used

BulgingPunch

Plates

Shaft

Shaft

K•Prene®

Die Pad

Die RetainerDeflector Bars

Deflector Bars

Max. 60% ofPad Width

Die Retainer

Punch

SteelDie

StrippingPad

Machined Die PadDie PadAir Space


Radius Forming with Deflector BarsUrethane die with deflector bars positioned under pad. Bars are graduated in size to control deflection of urethane. This helps form the difficult bends.

BulgingPunch

Plates

Shaft

Shaft

K•Prene®

Die Pad


Deflector Bars


Die Retainer

Punch

SteelDie

StrippingPad



Compound BendsDifficult forms like these can be made with a standard urethane die pad (definition is best with lighter gauges). Deflector bars beneath die pad provide air space to permit greater penetration into pad.

BulgingPunch

Plates

Shaft

Shaft

K•Prene®

Die Pad


Deflector Bars


Die Retainer

Punch

SteelDie

StrippingPad



Over-formingUnique adaptation of urethane pad to over-form flanges. Here, the pad is cast or machined-to-shape because greater

pressures are required. This design provides compensation for springback.

BulgingPunch

Plates

Shaft

Shaft

K•Prene®

Die Pad


Deflector Bars


Die Retainer

Punch

SteelDie

StrippingPad



Bulging Punch

BulgingPunch

Plates

Shaft

Shaft

K•Prene®

Die Pad


Deflector Bars


Die Retainer

Punch

SteelDie

StrippingPad



Stripping Pad for Punching

A standard urethane pressure pad machined to fit around punch. This is an easy, economical method of constructing a durable, oil resistant, high pressure stripping pad.

BulgingPunch

Plates

Shaft

Shaft

K•Prene®

Die Pad


Deflector Bars


Die Retainer

Punch

SteelDie

StrippingPad



Roll Bending

A rotating steel shaft coated with K•Prene® working with another steel shaft positioned directly above, results in round parts with little or no flats on the leading or trailing ends.

In bulging applications, urethane offers much longer service life than rubber, and is very cost effective compared to expanding/shrinking steel punches. Displacement of ure-thane punch under compression forces metal outward into desired shape. Amount of bulge is determined by depth of stroke. When ram is raised (after stroke), urethane resumes its normal shape and bulged part can be easily removed.

For more information on

basic principles of metal forming

with K•Prene®, contact us for our

PTB-90 catalog.

Die Pad

Die Pad

Stripping Pad

Machined Die Pad Die Pad

Deflector Bars

Die Retainer

Deflector Bars

Deflector Bars

Die RetainerAir Space

Maximum 60% of

Pad Width

Bulging PunchAlignment

Plates

Steel Die

Shaft

Shaft

K•Prene®

The information and suggestions in this brochure are based upon the best laboratory and technical information available to us. Any recommenda-tions or suggestions are made without warranty or guarantee, since the conditions of use are beyond our control. Nothing contained herein shall be construed to imply the nonexistence of any relevant patents nor to constitute a permission, inducement or recommendation to practice any invention covered by any patent owned by Acrotech Inc. or by others, without authority from the owner of the patent.


roll bending

16

For a quote, contact one of our machine engineers,

Roll parts with a minimum of flat on the leading and trailing ends for easier welding and better looking parts.

Increase production and lower costs because there is no preforming required.

Roll perforated and other difficult materials without fluting or kinking. Roll prefinished materials (stainless, aluminum, prepaint, etc.) without damaging parts.

Easy set up and operations with excellent repeatability and quick tooling changes.

Forget the scheduling headaches and pursue outsourcing your rolled product.

Custom Rolling

In addition to providing rolled samples, Acrotech offers custom rolling services. If you roll parts sporadically or in small quantities, Acrotech will custom roll them for you! We have several machines and a full selection of tooling readily available to provide quality rolled parts in a timely manner. You’ll be surprised at how economical custom rolling can be with our One Pass Rolling Machines.

Acrotech manufactures a line of One Pass Two Roll Bending Machines. If you have large-volume needs for complete or partial cylinders with little or no flats on the ends, our machines will produce your parts quickly and cleanly. This includes polished materials containing large cutouts or perforations!

The Benefits of “One Pass” Two Roll Bending Machines


machines

17

LD & HD ModelsDesigned for the production of larger, heavier gauge parts. The drop arm and the lower roll are positioned pneumatically on all LD machines and hydraulically on the HD models. (See pages 20-21 for standard and optional accessories).

Model V-1006The unique design of the cantilevered rolls mounted in a vertical position, allows the parts to simply drop from the machine at the end of the rolling cycle, greatly increasing productivity. Its short, sturdy rolls are ideally suited for narrow parts such as clamps, brake bands, hole saws, light fixtures, etc.

If you would like to see our machines in action,

call us or check out the video on our web site!

www.acrotechinc.com

Every model in Acrotech’s unique line of Two Roll Bending Machines is designed and built for production and precision. These machines will roll a variety of materials and configurations into cylinders with virtually no flats on the ends!

Models 1212, 1618 and 1824Built to meet the demands of production involving small, light gauge parts. Pneumatic lock-up is standard on all models for increased productivity. 120V 1PH standard wiring simplifies installation. 220 or 440V 3PH wiring is also available.


roll bending

18

Three Roll, Pinch-Type System:

Material

Steel Rollers

Flat area

AdjustmentAdjustment

Two Roll, Steel Urethane System: Rotation of both rolls produces accurate curving and rolling of complete or partial cylinders in one pass!

MaterialTop shaft

Slip-on tube

Bottom shaft

K•Prene® urethane

Three Roll, Pyramid-Type System:

Material

Steel Rollers

Bending Roll

Adjustment

Basic Machine ConstructionThere are two basic frame designs:

1) Horizontal 2) Vertical

LD, HD, 1618, 1212 & 1824 Models depict a typical horizontal roll-bending machine. Its major parts include the bottom, urethane-covered roll, the top (steel) roll, and the overarm, which can be opened and closed to facilitate the removal of a finished piece part. (See page 17 for models).

Model V-1006 depicts a typical vertical roll-bending machine.The operation of this machine is basically the same as that of the horizontal one, except that in this case, piece parts are loaded and unloaded vertically. In general, the vertical machine is faster than the horizontal one, but it is limited to rolling piece parts that are shorter. (See page 17 for models).

In every case, steel plate and steel weldments are used in the frame of the machine. This provides sufficient rigidity and, at the same time, resiliency, necessary to roll parts of varying thickness.

Two Roll vs. Three Roll ProcessNote that the drawbacks of the three roll systems, whether pinch or pyramid type, are that the work piece is not confined during the bending process, i.e., bending takes place “in the air.” When rolling parts this way to some desired shape and tolerance, several passes might be required with roll adjustments necessary after each pass. This is relatively slow and requires considerable skill on the opera-tors’ part.

The Two Roll PrincipalThe Two Roll Principle method is comprised of a steel top roll and a urethane bottom roll. A segment of this top roll is pushed into the urethane bottom roll, and this deflecting volume of urethane functions the same as hydraulic fluid in a hydroforming process, exerting very high pressures against the steel roll. When sheet metal is inserted between two such rolls, the urethane wraps the sheet metal tightly against the steel roll (similar to a radius forming urethane press brake die), and since the urethane roller is driven, the sheet metal is roll formed into a precise radius. Allowing for natural spring back of the material, this radius remains uniform irrespective of whether the shape of the part being formed is a complete circle, or is only a segment of a circle. In most applications this will eliminate the necessity of either pre-forming or cutting off the ends. The flat spots on the leading and trailing edges are very minimal (approx. one to four material thicknesses, depending on the type of material). Otherwise difficult-to-roll sheet metal parts, such as those with perforations, cut-outs, uneven feeding or trailing edges, embossed parts, etc. can be formed without kinking or fluting. Finally, the relatively soft urethane surface will not mar or scratch finished surfaces.

Getting Parts WithDifferent RadiiIn all cases the radius of the rolled part is controlled by the radius of the top roll and the natural spring-back of the material (SO ACCURATE IS THE PRESSURE OF THE TWO ROLL SYSTEM THAT IF, IN A GIVEN RUN, PARTS WITH WRONG RADUIUS START COMING OFF THE MACHINE, THE THING TO DO IS TO CHECK THE MATERIAL QUALITY, NOT THE MACHINE SETTING). In other words, the machine has a “zero tolerance”, meaning that variations in the free diameter of the rolled part are due only to the variations (hardness, temper and thickness of material) in the natural spring-back of the material.

Some of the disadvantages of a Three Roll, Pinch-Type or Pyramid-Type system include:

The ends of blanks must be pre-formed on other equipment (or cut off which means material waste).

Flat areas may form between cutouts and perforations in a part, eliminating the possibility of making such openings while the piece part is flat, requiring more complex process.

Fluting or kinking of material will occur especially in parts with cutouts and perforations.

It is practically impossible to roll prefinished (polished, painted, enameled, etc.) material without the possibility of damaging finished surfaces (cracking and scratching).

The Art of Roll BendingRoll-bending or curving, as defined here, designates the manufacture of sheet-metal parts that are rolled or curved into cylindrical shapes or shapes that have a smooth radius associated with them.


roll bending

19

Model Model Acrotech Di-Acro Std. Metric Std. Metric Std. Metric Std. Metric Std. Metric hp.1212 - 12 ga. 2.7mm 12" 305mm 3-1/2" 88.9mm 9" 229mm 22 670.6CMPM 1.01618 M1835 16 ga. 1.5mm 18" 457mm 3-1/2" 88.9mm 6" 152mm 15 457.2CMPM 1.01824 - 18 ga. 1.2mm 24" 610mm 3-1/2" 88.9mm 6" 152mm 15 457.2CMPM 1.0

LD-1418 A1835 14 ga. 1.9mm 18" 457mm 3-1/2" 88.9mm 9" 229mm 23.2 707.1CMPM 1.5LD-1118 A1840 11 ga. 3.1mm 18" 457mm 4" 102mm 9" 229mm 23.2 707.1CMPM 1.5LD-1224 A2440 12 ga. 2.7mm 24" 610mm 4" 102mm 9" 229mm 23.2 707.1CMPM 1.5LD-31618 A1850 3/16" 4.8mm 18" 457mm 5" 127mm 9" 229mm 19.8 603.5CMPM 3.0LD-1024 A2450 10 ga. 3.4mm 24" 610mm 5" 127mm 9" 229mm 19.8 603.5CMPM 3.0LD-1230 A3050 12 ga. 2.7mm 30" 762mm 5" 127mm 9" 229mm 23.2 707.1CMPM 1.5HD-31624 B2460 3/16" 4.8mm 24" 610mm 6" 152mm 12" 305mm 16.0 487.7CMPM 5.0HD-1030 B3060 10 ga. 3.4mm 30" 762mm 6" 152mm 12" 305mm 19.5 594.4CMPM 3.0HD-1236 B3660 12 ga. 2.7mm 36" 914mm 6" 152mm 12" 305mm 19.5 594.4CMPM 3.0HD-31630 B3070 3/16" 4.8mm 30" 762mm 7" 178mm 12" 305mm 16.0 487.7CMPM 5.0HD-1036 B3670 10 ga. 3.4mm 36" 914mm 7" 178mm 12" 305mm 16.0 487.7CMPM 5.0HD-1248 B4870 12 ga. 2.7mm 48" 1220mm 7" 178mm 12" 305mm 19.5 594.4CMPM 3.0HD-31636 B3680 3/16" 4.8mm 36" 914mm 8" 203mm 12" 305mm 16.0 487.7CMPM 5.0HD-1048 B4880 10 ga. 3.4mm 48" 1220mm 8" 203mm 12" 305mm 16.0 487.7CMPM 5.0HD-1160 B6080 11 ga. 3.1mm 60" 1520mm 8" 203mm 12" 305mm 16.0 487.7CMPM 5.0HD-1672 B7280 16 ga. 1.5mm 72" 1830mm 8" 203mm 12" 305mm 22.9 698.0CMPM 1.5

V-1006 V 10 ga. 3.4mm 6" 152mm 4" 102mm 8" 203mm 22.0 6.68CMPM 0.75

Capacitymild steel

Working lengthof rolls

Diameter oftop roll

Diameter ofbottom roll

Rolling speedf.p.m. Motor

Roll Benders Specifications

Understanding One Pass RollingThe One Pass Acrotech method permits rolling segments of cylinders or complete cylinders from all types of sheet metal – finished, embossed, perforated, wire mesh, regular or irregular shapes up to ¼" thick in a SINGLE PASS. This can be done at production rates ranging from 100 to 350 parts per hour on standard machines, to 1200 parts per hour on special machines. Parts 2” wide to full width of the machine roll to the same diameter.

The Two Roll rolling and curving machine has a rather unique construction feature. This is what we call the anti-deflection system and this system eliminates the possibility of rolling bell-mouth parts, which is caused by roll deflection. The center shaft can deflect under pressure, while the outer tube stays parallel. The two bearings used between the tube and center shaft are of double roller spherical type and are self-aligned bearings. This feature is used both in the top roll and the lower urethane roll. Conventional Three roll machines will normally crown the rolls, trying to eliminate the bell-mouth condition.

The force package of the Acrotech Two Roll machine will consist of either a pneumatic or hydraulic package. The machine itself consists of a set of linkage that is powered into position by a hydraulic or pneumatic cylinder. Once the linkage is into position, it actually over-centers and mechani-cally locks the roll into position, thereby eliminating the need for the hydraulic or pneumatic system to provide the pressure. What this means is the machine is mechanically locked into position and this position cannot change with the entry of material, thereby giving you a repeatable part diameter. The drive package is a very simple and low maintenance system consisting of an electrical motor and gear reducer and a chain drive to another set of sprockets, further reducing the rolling speed and then directly to the urethane roll. The reason we are powering the urethane roll is to eliminate any slippage that would be caused by rolling oily material. The urethane roll itself is not affected by grease or oil; therefore, de-greasing of the sheet stock is not mandatory.

The Two Roll rolling and curving machine is a machine that is aimed at the high production market. Since each diameter part must have an individual sleeve or shaft developed to produce this part, it is not feasible to use this style of machine in an atmosphere where there are a very low number of parts produced and a very high number of sizes. Rather, we are looking for a market where there are a high number of parts to be run.

Roll Bending Spring-Back Example:Commercial quality hot rolled and cold rolled steels in the 1020 carbon range have a wider tolerance of spring-back and are, therefore, subject to more variation than the lower carbon steels in the 1010 carbon or lower range. This means that with commercial quality steels, a change can be expected from one shipment to another, or even within the same batch of material being used. This change in spring-back will alter the free rolled diameter of the finished part. With the precision roller, compensating for spring-back variations can be accomplished by changing the diameter of the slip-on-tube being used.

Acrotech cannot be responsible for the variation in spring-back due to different material thickness or temper from the material submitted for development or subsequent materials used.


roll bending

20

Air TanksArchitectural DesignsCatalytic Converters Chemical or Nuclear Industrial Containers Chimney FluesCommercial Vehicle PanelsCompressor Casing for Air ConditioningElectric Motor Casings

Exhaust SystemsFan BladesFire Extinguishers Gas or Fluid TanksHole Saw BladesLighting Fixtures Misc. Ducting ComponentsMisc. Rings and Bands

Motor and Blower HousingsName PlatesPipe ClampsPressure Vessels & Tanks Sleeve Bearings Tank Heater ElementsWashing Machine TubesWater Heaters

Acrotech machines best fit into an OEM type fabrication / manufacturing facility where high volume, consistent parts are required at low cycle times. Some applications include:

Roll Bending Applications

A

B

D

C

G

53

13

1

4

6

8


accessories

21

Tooling Slip on Tubes – when the diameter required is larger than what the top shaft will produce, a Slip-On Tube is used. The tubes are developed per part size and increase the forming diameter capability of the top shaft. Quickly change the tube by simply slipping them on and off the top shaft as needed. A Slip-On Tube will be required for each specific part.Slip-On Tube Support – facilitates removal of finished piece-part. Adjustable in height, this accessory supports slip-on tubes to prevent pinching curved cylinders against lower roll when removing finished parts.Small-OD Mounting Fixture – required for rolling parts smaller in diameter than the standard top roll.Small-OD Shaft Assembly – available in various lengths and diam-eters for rolling material to a diameter smaller than standard top roll. Must be used in conjunction with Small-OD Mounting Fixture.Auto Timer – for controlling partial curvature of material 90°, U-bends, etc. Can be used in conjunction with Part Ejectors for automated rolling and part ejection. (not shown)Reversing Control – gives added flexibility for special jobs. (not shown)Part Ejector – for increased production, part ejectors and part feeders can be developed for most parts.Motorized Roll Position Control – speeds the set-up from one job to another. (not shown)Additional Safety Features – can be custom built per customer requests. Features such as light curtains, special guarding…etc

Tooling Slip on Tubes – when the diameter required is larger than what the top shaft will produce, a Slip-On Tube is used. The tubes are developed per part size and increase the forming diameter capability of the top shaft. Quickly change the tube by simply slipping them on and off the top shaft as needed. A Slip-On Tube will be required for each specific part.Slip-On Tube Support – facilitates removal of finished piece-part. Adjustable in height, this accessory supports slip-on tubes to prevent pinching curved cylinders against lower roll when removing finished parts.Small-OD Mounting Fixture – required for rolling parts smaller in diameter than the standard top roll.Small-OD Shaft Assembly – available in various lengths and diameters for rolling material to a diameter smaller than standard top roll. Must be used in conjunction with Small-OD Mounting Fixture. Permits rolling diameters as small as one inch.

A

B

C

D

E

F

G

H

I

OPTIONAL ACCESSORIES

OPTIONAL ACCESSORIES

LD & HD Models Standard Equipment and Optional Accessories (See page 17 for models).

Roll Position Control - single hand wheel provides quick parallel roll adjustment. Rotating Counter- indicates roll position in increments for repeat set up. (not shown) Automatic Overarm – Operates sequentially with K•Prene® roll raising and lowering. Automatically locks in place. Automatic Overarm Guard – protects operator from moving overarm. Push-Button Control and Signal Light – buttons control roll and overarm cycle. Light indicates when machine is ready for operation. Guarded Foot Switch – leaves operator’s hands free to feed material. Electricals – are UL Compliant. (not shown) Safety Knee Bar – provides additional safety for the operator. Tripping the bar stops roller rotation, lowers overarm, disengages rolls, and shuts off power simultaneously. Electro-Hydraulic Control (HD) – for roll positioning and automatic overarm; all models have motor driven rolls. (not shown) Electro-Pneumatic Control (LD) – for roll positioning and automatic overarm. (not shown) Bearings – pre-packed and sealed in upper and lower roll assemblies. Each shaft is fitted with heavy-duty, self-aligning spherical roller bearings. (not shown) Anti-Deflection System – prevents bowing in upper and lower roll assemblies, and provides for perfect cylindrical parts. (not shown) Feed Table – Machine Supported; units are adjustable for height and feed angle and includes finger guard.

1

2

3

4

5

6

78

9

10

11

12

13

STANDARD EQUIPMENT

1618, 1824 & 1212 Models Standard Equipment and Optional Accessories

Floor Stand

Motorized Roll Drive

Lower Roll Steel Core, Grooved K•Prene® Urethane

Manual Quick-Release Lever

Single–Lever Roll Engagement – Adjustable

Adjustable Feed Table with Finger Guard

Guarded Electric Footswitch

Pneumatic Lock-up

Electricals are UL Compliant

STANDARD EQUIPMENT


Square & Rectangular Bars (metric sizes on page 24).

LengthWidth Height 12" 24" 36" 48" 2" Blocks

3/8" 3/8" $11.75 $18.20 $24.70 $25.85 1/2 1/2 12.70 20.05 27.50 29.60 5/8 5/8 14.05 22.75 31.50 53.05 3/4 3/4 15.35 25.40 35.50 40.30

1 1 21.75 38.10 54.60 65.75 $27.00 per ft. 1-1/4 1-1/4 26.60 47.80 69.10 85.05 1-1/2 1-1/2 32.45 59.55 86.75 108.60 1-3/4 1-3/4 37.85 69.95 101.20 126.70

* 2 2 47.25 89.60 131.80 168.65 $52.70 per ft. 2-1/2 2-1/2 66.70 128.10 189.55 245.70

* 3 2 69.85 134.30 198.87 258.10 $75.10 per ft. 3 3 98.20 191.00 283.95 371.50 4 4 165.90 285.80 415.00 535.00 5 5 233.45 420.85 617.40 804.85 6 6 315.85 585.70 864.80 1,134.75

k-prene

22

Round Rods (metric sizes on page 24).

Length

Diameter 6" 12" 24" 36" 48"

1/4" $16.20 $21.85 — — 3/8 16.70 22.90 — — 1/2 12.20 19.15 $26.05 $27.75 5/8 13.15 21.00 28.90 31.50 3/4 14.30 23.35 32.35 36.15 7/8 15.65 26.05 36.45 41.60 1 17.25 29.20 41.20 47.90 1-1/8 19.40 33.60 47.70 56.55 1-1/4 21.55 37.95 54.20 65.20 1-3/8 24.15 43.10 61.95 75.50 1-1/2 26.70 48.20 69.65 85.80 1-5/8 30.20 55.25 80.20 99.85 1-3/4 33.70 62.30 90.75 113.95 1-7/8 36.85 68.60 100.20 126.55 2 40.00 74.90 109.65 139.15 2-1/8 43.65 82.00 120.40 153.50 2-1/4 47.25 89.15 131.15 167.80 2-3/8 51.25 97.15 143.15 183.80 2-1/2 55.25 105.15 155.10 199.75 2-3/4 64.05 122.85 181.55 235.10 3 76.35 147.45 218.40 284.25 3-1/8 79.10 152.85 226.60 295.15 3-1/4 81.80 158.25 234.80 306.00 3-1/2 92.40 179.55 266.60 348.50 3-3/4 103.85 202.45 300.95 394.30 4 116.05 226.80 337.60 443.10 4-1/2 $106.60 145.35 285.40 425.35 560.20 5 118.25 267.00 347.55 558.75 739.00 6 152.90 276.40 513.25 765.80 1016.50 7 193.95 358.40 677.40 1013.00 1344.80 8 241.30 453.00 866.60 1296.00 1723.20

(NO

T A

VA

ILA

BLE

)

Custom shapes &

sizes are available!

*Available with 1" diameter center hole at the same price.To order, specify “ with center hole.”

See stocked inventory dimension tolerances for rods, squares and rectangulars on page 4.

Custom shapes &



k-prene

23

Precision Cast SheetsThese have more tightly controlled thickness dimensions than open cast sheets.

Thickness

Width Length 1/16" 1/8" 3/16" 1/4" 3/8" 1/2" 5/8"

1" 48" $20.25 $22.25 $24.25 $26.25 $30.25 $34.25 $39.50 2 48 24.70 28.80 32.75 36.75 44.75 52.80 63.30 3 48 29.20 35.30 41.30 47.25 59.35 71.30 87.05 4 48 33.60 41.70 49.70 57.75 73.80 89.90 110.90 6 6 19.10 20.60 22.15 23.65 26.70 29.60 33.60

12 22.50 25.50 28.45 31.50 37.50 43.60 51.4518 25.85 30.35 34.85 39.40 48.40 57.45 69.2024 29.20 35.20 41.30 47.25 59.35 71.30 87.0536 35.90 44.95 54.00 63.00 81.05 99.10 122.7548 42.65 54.60 66.70 78.75 102.80 126.95 158.50

12 12 29.20 35.20 41.30 47.25 59.35 71.30 87.0518 35.90 44.95 54.00 63.00 81.05 99.10 122.7524 42.65 54.60 66.70 78.75 102.80 126.95 158.4536 56.00 74.05 92.20 110.25 146.40 182.50 229.7548 69.40 93.55 117.60 141.75 189.95 238.15 301.05

18 18 45.90 59.55 73.10 86.65 113.70 140.80 176.2024 55.95 74.05 92.20 110.25 146.40 182.50 229.7536 76.15 103.25 130.30 157.40 211.70 265.90 336.7548 96.30 132.40 168.55 204.65 277.00 349.25 443.75

24 24 69.40 93.55 117.60 141.75 189.95 238.15 301.0536 96.30 132.40 168.55 204.65 277.00 349.25 443.7548 107.30 155.50 203.70 251.90 348.30 444.70 570.6060 138.90 195.20 251.40 307.65 420.10 532.60 645.0072 150.15 217.70 285.10 352.60 487.50 622.45 757.50

48 48 — — — 442.60 622.45 802.45 982.4096 — — — 802.40 1,162.25 1,522.10 1,882.05

3/4" 1" 1-1/2" 2" 2-1/2" 3" 4"

1" 48" $43.60 $65.75 $73.65 $87.40 $102.70 $123.30 $159.10 2 48 71.30 87.40 151.75 168.65 238.10 258.10 295.05 3 48 99.15 123.30 217.70 258.10 280.05 371.50 442.60 4 48 126.95 159.10 235.10 295.05 382.65 442.60 535.00 6 6 36.65 42.65 70.45 81.70 93.05 104.30 126.75

12 57.45 69.50 113.40 135.90 158.45 180.95 225.8518 78.35 96.40 156.35 190.05 223.86 257.60 325.0024 99.15 123.30 190.05 235.10 280.05 325.00 415.0036 140.80 176.95 257.60 325.00 420.10 487.55 622.4548 182.50 230.70 325.00 415.00 532.60 622.45 802.40

12 12 99.15 123.30 180.95 225.85 280.05 325.00 415.0018 140.80 176.95 257.60 325.00 392.50 460.00 594.9524 182.50 230.70 325.00 415.00 532.60 622.45 802.4036 265.85 338.20 487.55 622.45 757.50 892.40 1,162.2548 349.25 445.65 622.45 802.40 982.40 1,162.25 1,522.10

18 18 203.40 257.60 386.30 487.55 588.75 689.95 997.4024 265.85 338.20 487.55 622.45 757.50 892.40 1,162.2536 390.95 499.40 690.00 892.40 1,094.85 1,297.20 1,702.0548 516.00 660.55 892.40 1,162.25 1,432.20 1,702.05 2,241.85

24 24 349.25 445.65 622.45 802.40 982.40 1,162.25 1,522.1036 516.00 660.55 892.40 1,162.25 1,432.20 1,702.05 2,241.8548 667.00 859.75 1,162.25 1,522.10 1,882.05 2,241.85 2,961.5560 757.50 982.40 1,432.20 1,882.05 2,331.85 2,781.70 3,681.3072 892.40 1,162.25 1,702.05 2,241.85 2,781.70 3,321.40 4,401.00

48 48 1,162.25 1,522.10 2,241.85 2,961.55 3,681.30 4,401.00 5,840.4596 2,241.85 2,961.55 4,401.00 5,840.45 7,279.90 8,719.20 11,598.10

See stocked inventory dimension tolerances on page 4.

Custom shapes &



metric products

24

Round Rods – Metric (made to order)

Square & Rectangular Bars – Metric (made to order)*These sizes fit European style bottom dies.

Width mm Height mm Length mm+0 – 0.3 +0 - 0.3 +5 - 0 Price

25 25 100 $11.15415 29.60500 34.65835 52.20

1000 58.70*30 25 100 11.65

415 31.80500 37.30835 56.50

1000 64.05*50 50 100 19.30

415 63.65500 75.60835 117.70

1000 140.65*80 30 100 18.90

415 61.65500 73.30835 114.05

1000 136.00 75 50 100 25.85

415 90.50500 107.95835 169.58

1000 205.40*110 45 100 31.00

415 112.15500 134.00835 211.25

1000 257.45

Note: Metric sizes conform to J.I.S. specifications.

14 30 60 $6.00 14 30 500 41.30 14 40 40 5.70 14 40 50 6.65 14 40 60 8.10 14 40 500 58.70 14 50 50 7.25 14 50 60 8.95 14 50 80 11.55 14 50 500 64.70 14 60 50 9.35 14 60 60 11.45 14 60 80 15.05 14 60 500 85.50 22 80 60 17.15 22 80 80 22.60 22 80 100 26.90 22 80 500 130.65 22 100 80 33.20 22 100 100 39.70 22 100 120 49.50 22 100 500 194.60

7 15 25 $1.90 7 15 30 2.20 7 15 35 2.45 7 15 40 2.65 7 15 500 22.20 8.5 20 25 2.20 8.5 20 30 2.55 8.5 20 35 2.85 8.5 20 40 3.15 8.5 20 500 28.15 11 25 25 2.55 11 25 30 2.95 11 25 35 3.25 11 25 40 3.70 11 25 45 3.90 11 25 500 34.35 14 30 25 2.85 14 30 30 3.40 14 30 35 3.80 14 30 40 4.20 14 30 45 4.55 14 30 50 4.95 14 30 55 5.40

I.D. O.D. Lgth. mm mm mm Price

I.D. O.D. Lgth. mm mm mm Price

Metric Sizes – Stocked with 1/8" dia. air holes

I.D. O.D. Lgth. Part No. Price mm mm mm

6 19mm 45mm MSS-006045 $4.00 6 19 53 MSS-006053 4.15 6 19 71 MSS-006071 4.55 8 21 45 MSS-008045 4.25 8 21 53 MSS-008053 4.45 8 21 71 MSS-008071 4.7010 23 45 MSS-010045 4.7010 23 53 MSS-010053 4.8510 23 56 MSS-010056 5.0010 23 71 MSS-010071 5.1513 26 45 MSS-013045 4.8513 26 53 MSS-013053 5.1513 26 56 MSS-013056 5.2513 26 71 MSS-013071 5.7516 30 45 MSS-016045 5.0016 30 53 MSS-016053 5.2516 30 56 MSS-016056 5.3516 30 71 MSS-016071 5.7520 38 45 MSS-020045 5.8520 38 53 MSS-020053 6.4020 38 71 MSS-020071 8.2025 50 45 MSS-025045 7.3525 50 53 MSS-025053 7.9025 50 71 MSS-025071 9.8032 60 45 MSS-032045 12.20

Dia.mm Price Price

8mm $16.90 – 10 17.55 – 15 19.65 $28.70 20 22.60 34.65 25 26.50 42.45 30 31.20 51.80 40 43.20 75.70 50 58.60 106.60 60 77.40 144.20 70 99.65 188.70 80 125.30 240.05 100 186.90 363.20

Length 500mm+5/-0mm

Length 1000mm+5/-0mm

SurStrip™ Punch StrippersMetric (made to order)

Tubes/Springs – Metric (made to order)

I.D. – Slightly undersize

to grip punch.

O/D & Lgth. +/- .2 mm


tubes/springs

25

Stocked in 95A Durometer, tubes/springs are useful in applications where vibration, corrosion and magnetism prevent the use of steel springs. Also, urethane springs have proven to be safest, most efficient and reliable compression material for punching, stamping and drawing dies.

The K•Prene® urethane Tube/Spring material is a polyether-elastomer that reacts similarly to an incompressible fluid. The volume of material moved by compression is displaced laterally in the form of bulging sides. An approximate change in the diameter of our K•Prene® urethane Tubes/Springs can be made by increasing the diameter by the same amount of compression.

Example: A 1.50" long spring is to be deflected by 15% or .225". The diameter will then also increase roughly by .225". The material’s lateral expansion must be considered for many applications.

The maximum recommended free (unloaded) length is 2.5 times the springs outside diameter, although springs may be stacked with guide rods and washer-shaped spacers.

Suggested maximum cyclic frequencies and deflection percentages of free length are summarized by the following for 95A Durometer Tubes/Springs.

K•Prene® Urethane Tubes/Springs

Maximum Deflection Cycle Per Hour

Slow speeds or short runs Less than 25% 200

Intermittent Up to 25% 700

Continuous Up to 15% 12,000

Cap Cap Order O.D. I.D. No. Price 1" 3/4" KPC-1000 $4.20 1-1⁄8 7/8 KPC-1108 4.65 1-1⁄4 1 KPC-1104 4.75 1-3⁄8 1-1⁄8 KPC-1308 4.95 1-1⁄2 1-1⁄4 KPC-1102 5.60 1-5⁄8 1-3⁄8 KPC-1508 5.90 1-3⁄4 1-1⁄2 KPC-1304 6.60 2-1⁄8 1-3⁄4 KPC-2108 7.35 2-3⁄8 2 KPC-2308 8.20 2-7⁄8 2-1⁄2 KPC-2708 9.90

CapsI.D.

O.D.

Caps SpecificationsGrade - K-750D, very tough, hard urethane. Can be drilled, pierced or machined to fit the punch for positive stripping while dampening vibration. Will not mar prefinished stocks. I.D. - Press fit to spring. (Use vise or arbor press to assemble caps and springs).

Almost any O.D./I.D. combination can be supplied. We have provided parts from 1/4" dia. to 6" dia. in quantities

of thousands to just a few pieces. Material, size, color, etc., all supplied to your specifications.

Bulk or specific quantity packaging is available. Contact Acrotech for details.

Washers, Seals & Gaskets

Advantages of urethane Tubes/Springs vs. conventional springs: Abrasion resistance

They do not fragmentize

High load-carrying capability

Protection from marring/galling

Longer life

Oil and solvent resistance (See chart on page 12)

Low noise

Vibration damping and shock absorbance

100% load-bearing surface

Effectiveness between -30° F. and 180° F.

Length

O.D.


tubes/springs

26

tubes/springsStocked in K-950A. A minimum order of the 12" or 24" length is required when ordering any other durometer.

Tubes/Springs (metric sizes on page 24).

Fits Lb. Lb. Lb. Punch Per Per Per Body 1/8" 3/8" 1/2" Diam. O.D. Lgth. Order No. Def. Def. Def. Price

1/2" 1" 1" KPS-0102 H01000 512 - 1143 $2.65High 1-1/4 KPS-0102 H01104 340 - 1025 3.05

Press. 1-1/2 KPS-0102 H01102 325 - 946 3.501-3/4 KPS-0102 H01304 275 - 878 4.00

2 KPS-0102 H02000 250 - 834 4.3524 KPS-0102 H24000 * - - 38.85

1-1/8" 1" KPS-0102 V01000 681 1709 - 2.85Very 1-1/4 KPS-0102 V01104 525 1475 - 3.40High 1-1/2 KPS-0102 V01102 424 1318 - 3.80

Press. 1-3/4 KPS-0102 V01304 350 1207 - 4.452 KPS-0102 V02000 320 1123 - 4.65

24 KPS-0102 V24000 * - - 43.401-1/4" 1" KPS-0102 U01000 863 2188 - 3.05

Ultra 1-1/4 KPS-0102 U01104 675 1793 - 3.60High 1-1/2 KPS-0102 U01102 550 1529 - 4.10

Press. 1-3/4 KPS-0102 U01304 492 1341 - 4.752 KPS-0102 U02000 450 1200 - 5.05

24 KPS-0102 U24000 * - - 48.30 5/8" 1-1/8" 1" KPS-0508 H01000 562 - 1224 2.85

High 1-1/4 KPS-0508 H01104 446 - 1169 3.40Press. 1-1/2 KPS-0508 H01102 375 - 1133 3.80

1-3/4 KPS-0508 H01304 323 - 1107 4.452 KPS-0508 H02000 295 - 1087 4.75

24 KPS-0508 H24000 * - - 43.601-1/4" 1" KPS-0508 V01000 794 1855 - 3.05

Very 1-1/4 KPS-0508 V01104 600 1624 - 3.60High 1-1/2 KPS-0508 V01102 510 1310 - 4.10

Press. 1-3/4 KPS-0508 V01304 424 1232 - 4.852 KPS-0508 V02000 384 1185 - 5.15

24 KPS-0508 V24000 * - - 48.651-3/8" 1" KPS-0508 U01000 975 2462 - 3.30


Press. 1-3/4 KPS-0508 U01304 546 1749 - 5.252 KPS-0508 U02000 489 1630 - 5.60

24 KPS-0508 U24000 * - - 54.10


3/16" 11/16" 1-1/4" KPS-0316 H01104 220 - 1036 $2.55High 1-1/2 KPS-0316 H01102 200 - 904 2.75

Press. 12 KPS-0316 H12000 * - - 15.55 1/4" 3/4" 1" KPS-0104 H01000 325 - 1101 2.35


1-3/4 KPS-0104 H01304 183 - 703 3.8012 KPS-0104 H12000 * - - 18.10

7/8" 1" KPS-0104 V01000 475 1294 - 2.45Very 1-1/4 KPS-0104 V01104 350 1131 - 2.95High 1-1/2 KPS-0104 V01102 302 1022 - 3.25

Press. 1-3/4 KPS-0104 V01304 275 - - 4.0012 KPS-0104 V12000 * - - 19.45

1" 1" KPS-0104 U01000 712 1543 - 2.55Ultra 1-1/4 KPS-0104 U01104 547 1266 - 3.15High 1-1/2 KPS-0104 U01102 399 1082 - 3.50

Press. 1-3/4 KPS-0104 U01304 348 933 - 4.3512 KPS-0104 U12000 * - - 21.00

5/16" 13/16" 1-1/4" KPS-0516 H01104 280 - 1037 3.05High 1-1/2 KPS-0516 H01102 255 - 936 3.40

Press. 1-3/4 KPS-0516 H01304 235 - 863 3.802 KPS-0516 H02000 225 - 809 4.20

12 KPS-0516 H12000 * - - 20.60 3/8" 7/8" 1" KPS-0308 H01000 444 - 1027 2.75


1-3/4 KPS-0308 H01304 224 - 876 4.202 KPS-0308 H02000 199 - 851 4.65

12 KPS-0308 H12000 * - - 23.101" 1" KPS-0308 V01000 575 1501 - 2.85


Press. 1-3/4 KPS-0308 V01304 325 998 - 4.452 KPS-0308 V02000 286 912 - 4.95

12 KPS-0308 V12000 * - - 24.701-1/8" 1" KPS-0308 U01000 800 2071 - 3.05


Press. 1-3/4 KPS-0308 U01304 450 1338 - 4.752 KPS-0308 U02000 387 1215 - 5.25

12 KPS-0308 U12000 * - - 26.50


Custom shapes &


Length

I.D.

O.D.


tubes/springs

27

3/4" 1-3/8" 1-1/4" KPS-0304 H01104 747 - 1725 $3.90High 1-1/2 KPS-0304 H01102 642 - 1623 4.45

Press. 1-3/4 KPS-0304 H01304 554 - 1550 5.152 KPS-0304 H02000 479 - 1495 5.60

2-1/4 KPS-0304 H02104 417 - 1452 6.402-1/2" KPS-0304 H02102 380 - 1418 7.05

24 KPS-0304 H24000 * - - 53.901-1/2" 1-1/4" KPS-0304 V01104 975 2390 - 4.20


Press. 2 KPS-0304 V02000 591 1749 - 6.102-1/4 KPS-0304 V02104 529 1631 - 7.052-1/2 KPS-0304 V02102 475 1536 - 7.702-3/4 KPS-0304 V02304 418 1458 - 8.55

24 KPS-0304 V24000 * - - 59.851-3/4" 1-1/4" KPS-0304 U01104 1400 3382 - 4.95


Press. 2 KPS-0304 U02000 896 2578 - 7.152-1/4 KPS-0304 U02104 796 2373 - 8.402-1/2 KPS-0304 U02102 707 2210 - 9.252-3/4 KPS-0304 U02304 551 2076 - 10.30

24 KPS-0304 U24000 * - - 73.60 7/8" 1-5/8" 1-1/2" KPS-0708 H01102 855 - 2363 4.55

High 1-3/4 KPS-0708 H01304 780 - 2213 5.40Press. 2 KPS-0708 H02000 745 - 2141 5.70

2-1/4 KPS-0708 H02104 700 - 2072 6.752-1/2 KPS-0708 H02102 670 - 1846 7.352-3/4 KPS-0708 H02304 610 - 1741 7.60

3 KPS-0708 H03000 560 - 1720 8.2024 KPS-0708 H24000 * - - 59.15

1-3/4" 1-1/2" KPS-0708 V01102 1045 3202 - 4.95Very 1-3/4 KPS-0708 V01304 955 2780 - 5.90High 2 KPS-0708 V02000 910 2464 - 6.30

Press. 2-1/4 KPS-0708 V02104 855 2218 - 7.352-1/2 KPS-0708 V02102 820 2021 - 8.102-3/4 KPS-0708 V02304 750 1880 - 8.30

3 KPS-0708 V03000 675 1726 - 9.0524 KPS-0708 V24000 * - - 65.55

2" 1-1/2" KPS-0708 U01102 1475 4079 - 5.80Ultra 1-3/4 KPS-0708 U01304 1345 3830 - 6.95High 2 KPS-0708 U02000 1285 3294 - 7.50

Press. 2-1/4 KPS-0708 U02104 1205 3032 - 8.752-1/2 KPS-0708 U02102 1155 2823 - 9.702-3/4 KPS-0708 U02304 1055 2652 - 10.00

3 KPS-0708 U03000 955 2508 - 10.7524 KPS-0708U24000 * - - 79.70


1" 1-3/4" 1-1/4" KPS-1000 H01104 1137 - 2782 $4.45High 1-1/2 KPS-1000 H01102 940 - 2588 5.05

Press. 1-3/4 KPS-1000 H01304 788 - 2450 6.002 KPS-1000 H02000 689 - 2346 6.45

2-1/4 KPS-1000 H02104 616 - 2265 7.502-1/2 KPS-1000 H02102 548 - 2201 8.202-3/4 KPS-1000 H02304 505 - 2148 9.15

24 KPS-1000 H24000 * - - 64.302" 1-1/4" KPS-1000 V01104 1550 4111 - 5.15


Press. 2 KPS-1000 V02000 854 2624 - 7.602-1/4 KPS-1000 V02104 770 2367 - 8.952-1/2 KPS-1000 V02102 700 2262 - 9.802-3/4 KPS-1000 V02304 636 2121 - 10.10

3 KPS-1000 V03000 569 1985 - 10.954 KPS-1000 V04000 423 1963 - 14.20

24 KPS-1000 V24000 * - - 78.552-1/2" 1-1/4" KPS-1000 U01104 2593 - - 6.95


Press. 2 KPS-1000 U02000 1524 3790 - 10.402-1/4 KPS-1000 U02104 1316 3525 - 12.302-1/2 KPS-1000 U02102 1212 3314 - 13.552-3/4 KPS-1000 U02304 1106 3061 - 14.00

3 KPS-1000 U03000 996 2851 - 15.154 KPS-1000 U04000 734 2272 - 19.85

24 KPS-1000 U24000 * - - 112.60 1-1/4" 2-1/2" 2" KPS-1104 H02000 1860 - - 10.95

High 2-1/4 KPS-1104 H02104 1750 - - 12.95Press. 2-1/2 KPS-1104 H02102 1675 - - 14.20

2-3/4 KPS-1104 H02340 1530 - - 14.603 KPS-1104 H03000 1380 - - 15.90

24 KPS-1104 H24000 * - - 118.25 1-1/2" 2-3/4" 2" KPS-1102 H02000 2105 - - 11.70

High 2-1/4 KPS-1102 H02104 1980 - - 13.90Press. 2-1/2 KPS-1102 H02102 1900 - - 15.25

2-3/4 KPS-1102 H02304 1730 - - 15.753 KPS-1102 H03000 1565 - - 17.05

24 KPS-1102 H24000 * - - 127.70




tubes/springs

28

Tubes and springs are made to order. Common sizes are listed below; if you don’t see the size you are looking for, contact us and we will make it for you.

Tubes/Springs (metric sizes on page 24).

1/8" 3/8" $13.30 1/8 1/2 13.95 1/8 3/4 15.80 1/8 1-1/8 21.65 1/8 1-1/2 25.65 1/8 1-3/4 30.40 3/16 5/8 15.10 3/16 3/4 16.10 3/16 7/8 17.30 3/16 1 18.70 3/16 1-1/2 26.00 1/4 5/8 17.10 1/4 1-1/8 22.55 1/4 1-1/4 24.30 1/4 1-1/2 28.30 1/4 1-5/8 30.60 9/32 1 20.90 5/16 9/16 18.60 5/16 5/8 19.05 5/16 3/4 20.05 5/16 7/8 21.20 5/16 15/16 21.90 5/16 1 22.60 5/16 1-1/8 24.15 5/16 1-1/4 25.90 5/16 1-1/2 29.90 5/16 1-3/4 34.65 5/16 2 40.10 3/8 5/8 20.90 3/8 3/4 21.90 3/8 13/16 22.50 3/8 15/16 24.00 3/8 1-1/4 28.25 3/8 1-3/8 30.15 3/8 1-1/2 32.25 3/8 1-3/4 37.00 3/8 2 42.45 3/8 2-1/2 55.60 3/8 3 71.65 25/64 7/8 23.00 7/16 3/4 21.60

7/16" 7/8" $36.95 7/16 1 39.50 7/16 1-1/4 45.60 7/16 1-3/8 49.15 7/16 1-1/2 53.05 1/2 3/4 34.10 1/2 7/8 36.30 1/2 1-3/8 51.85 1/2 1-1/2 55.75 1/2 1-3/4 64.55 1/2 1-13/16 66.95 1/2 2 74.70 1/2 2-1/2 99.10 1/2 3 128.95 1/2 3-1/4 137.25 33/64 13/16 35.05 33/64 1 38.70 33/64 2 71.25 9/16 3/4 33.40 9/16 1 38.15 9/16 1-1/4 44.25 9/16 1-3/8 47.80 9/16 2 70.70 9/16 2-1/2 95.10 9/16 3 124.95 5/8 3/4 36.00 5/8 1 40.75 5/8 1-1/2 58.00 5/8 1-5/8 62.25 5/8 1-3/4 66.85 5/8 2 77.05 5/8 2-1/8 82.65 5/8 2-1/4 88.60 5/8 2-1/2 101.50 41/64 1 40.55 41/64 1-1/8 46.65 41/64 1-3/8 50.20 41/64 1-3/4 62.90 41/64 2 73.10 21/32 1 40.35 11/16 1-1/4 46.00 3/4 7/8 41.75 3/4 1 44.30 3/4 1-1/8 47.15 3/4 1-1/4 50.35 3/4 1-13/16 76.05 3/4 1-7/8 78.55

3/4" 2" $83.80 3/4 2-1/4 95.35 3/4 2-1/2 108.25 3/4 2-3/4 122.50 3/4 3 138.10 13/16 1-1/2 58.80 13/16 1-3/4 67.60 27/32 3-1/8 144.80 7/8 1-1/8 44.25 7/8 1-1/4 47.45 7/8 1-3/8 51.00 7/8 1-1/2 54.90 7/8 1-11/16 63.25 7/8 2-1/16 82.45 7/8 2-1/2 104.10 7/8 3 133.95 7/8 3-1/4 150.90 7/8 3-1/2 169.20 1 1-1/4 48.05 1 1-3/8 49.70 1 1-1/2 55.50 1 2-1/4 90.10 1 3 142.45 1 3-1/16 146.55 1 3-1/4 159.40 1 3-1/2 177.70 1 3-3/4 197.40 1 4 218.45 1-1/16 1-3/4 62.90 1-1/16 2 73.05 1-1/16 2-1/4 84.60 1-1/16 2-1/2 97.50 1-3/32 2-1/4 83.90 1-1/8 1-3/8 48.75 1-1/8 1-1/2 52.65 1-1/8 1-5/8 56.90 1-1/8 1-3/4 61.50 1-1/8 2 71.70 1-1/8 2-1/4 83.25 1-1/8 2-9/16 99.60 1-1/8 3 126.00 1-1/4 1-1/2 49.45 1-1/4 1-5/8 79.15 1-1/4 1-3/4 83.70 1-1/4" 1-7/8" $88.60 1-1/4 2 93.85 1-1/4 2-3/4 132.50

1-1/4" 3" $148.10 1-1/4 3-1/4 165.05 1-3/8 1-3/4 80.15 1-3/8 1-7/8 85.10 1-3/8 2 90.35 1-3/8 2-1/2 114.75 1-3/8 3-1/4 161.55 1-3/8 3-1/2 179.85 1-1/2 1-7/8 83.85 1-1/2 2 89.10 1-1/2 2-1/4 100.60 1-1/2 2-1/2 113.45 1-1/2 3 143.30 1-1/2 3-1/2 178.55 1-1/2 4 219.25 1-5/8 2 84.90 1-5/8 2-1/4 90.50 1-5/8 2-1/2 109.35 1-5/8 3 139.20 1-3/4 2-1/4 91.80 1-3/4 2-3/8 98.10 1-3/4 2-1/2 104.70 1-3/4 3 134.55 1-3/4 3-1/4 151.50 1-7/8 3 129.65 1-7/8 3-1/2 164.90 2 2-1/2 94.55 2 2-3/4 108.80 2 3 124.40 2 3-1/4 141.35 2 3-1/2 159.70 2 4 200.40 2-1/16 3-1/4 138.60 2-1/16 4 197.60 2-1/16 4-5/8 256.10 2-1/8 3 118.80 2-1/4 3 112.90 2-1/4 3-1/2 148.15 2-1/4 4 188.85 2-3/8 3 106.65 2-3/8 4 182.60 2-1/2 3 135.30 2-1/2 4 176.00 3 4 146.15 3 5 243.80 4 5 104.85

I.D. O.D. Price I.D. O.D. Price I.D. O.D. Price I.D. O.D. Price

12" Lengths 24" Lengths


Length

I.D.

O.D.


bumpers

29

Round Bumpers

Rectangular & Square Bumpers

Washers

These bumpers have steel cores with male or female threads. Bumpers are stocked in K-400A, K-600A, K-800A, K-900A, and K-950A.

Specifications PricesA B Thread C Part No. 1-24 25-49 50+

1" 1" 1/4-20 .750" ROM-001 $3.95 $3.75 $3.601-1/4 1 1/4-20 .750 ROM-002 4.50 4.25 4.051-1/2 1-1/4 3/8-16 .875 ROM-003 5.40 5.20 5.002 1-1/4 3/8-16 .875 ROM-004 7.20 6.95 6.502-1/2 2 1/2-13 1.00 ROM-005 13.10 12.50 11.903 2-1/2 1/2-13 1.00 ROM-006 21.95 20.90 19.90

1" 1" 1/4-20 — ROF-001 $3.60 $3.35 $3.201-1/4 1 1/4-20 — ROF-002 4.10 3.95 3.751-1/2 1-1/4 3/8-16 — ROF-003 4.90 4.60 4.352 1-1/4 3/8-16 — ROF-004 6.60 6.25 6.002-1/2 2 1/2-13 — ROF-005 12.15 11.60 11.053 2-1/2 1/2-13 — ROF-006 21.00 20.00 19.05

F G H I Part No. 1-24 25-49 50+

1" 3/4" 1 Hole-Centered SQU-001 $3.85 $3.70 $3.501-1/2 1 3/8" 3/4" SQU-002 5.15 4.90 4.702 1 3/8 1-1/4 SQU-003 7.45 7.10 6.70

2-1/2 1 SQU-004 10.25 9.70 9.30 3 1-1/2 SQU-005 17.45 16.60 15.85 4 1-1/2 SQU-006 27.45 26.20 24.95

Specifications PricesA B Thread C Part No. 1-24 25-49 50+3/4" 3/4" 1/4" .500" RON-001 $2.70 $2.60 $2.451 1 1/4 .500 RON-002 3.40 3.25 3.101-1/4 1 3/8 .750 RON-003 3.90 3.70 3.501-1/2 1-1/4 3/8 .750 RON-004 4.80 4.50 4.302 1-1/4 1/2 .750 RON-005 6.40 6.15 5.902-1/2 2 1/2 .750 RON-006 12.00 11.40 10.903 2-1/2 1/2 .750 RON-007 18.80 18.00 17.10

Specifications PricesA B C D E Part No. 1-24 25-49 50+

1" 2" 1/2" 3/8" 1-1/4" REC-001 $4.40 $4.20 $4.00 1 2 3/4 3/8 1-1/4 REC-002 4.95 4.75 4.50 1 2 1 3/8 1-1/4 REC-003 5.40 5.20 5.00 1 2 1-1/2 3/8 1-1/4 REC-004 6.45 6.15 5.90 1-1/4 2-1/2 3/4 3/8 1-3/4 REC-005 5.95 5.60 5.35 1-1/4 2-1/2 1 3/8 1-3/4 REC-006 6.70 6.35 6.10 1-1/4 2-1/2 1-1/2 3/8 1-3/4 REC-007 8.30 7.90 7.50 1-1/2 3 3/4 1/2 2 REC-008 6.95 6.60 6.25 1-1/2 3 1 1/2 2 REC-009 8.04 7.60 7.30 1-1/2 3 1-1/2 1/2 2 REC-010 10.35 9.80 9.40

Base is 1/8" aluminum plate. Mounting holes are drilled and counterbored for 1/4" socket head cap screws. Stocked in K-400A, K-600A, K-800A, K-900A and K-950A.

These round bumpers have a flat washer molded into the bumper and will accept a socket head cap screw of the size indicated. Stocked in K-400A, K-600A, K-800A, K-900A, and K-950A.

Hole Centersare 1/2" from

each edge.

Custom shapes &


ROF Female Thread

A

B

ROM Male Thread

A

B

C

REC Rectangular

E

I

1/2"

1/2"

F

H

B

C

G

AD

RON Flat Washer

B

A

C


versa roll™

30

Our super tough urethane material forms the functional outer hub of the roller, caster, or wheel. It readily absorbs shock and resists cutting. This material is bonded to a second material, which functions as the roller, caster, or wheel’s very durable inner bearing. These two bonded materials provide the wear resistance and durability that bring extraordinary performance. The Versa Roll™ is manufactured in a uniform roll, which allows the user to simply cut off pieces at the lengths necessary to become their needed rollers, casters, or wheels.

End users of our Versa Roll™ products discover the unique versatility and shock absorbing toughness of this product. The rollers, casters, and wheels developed from Versa Roll™ require a much lower level of maintenance in each type of application in which they are used.

MOVING MATERIALS — The level of automation in today’s manufacturing environment continues to grow rapidly. The movement of materials using rollers, casters, and wheels is the most significant contribution to the savings in labor in today’s manufacturing facilities. The Versa Roll™ brings a simple and highly-flexible roller, caster, and wheel solution that will fit existing material handling formats, and can also be used to move your facility into the next generation of material moving efficiencies.

MAINTENANCE RESPONSIVENESS — No longer do maintenance staff need to look up replacement parts in a catalog or wait precious days or weeks for the parts to arrive. With Versa Roll™, your replacement products are each only one band saw cut away. The versatility of Versa Roll™ allows the fabrication of nearly any rolling component on the spot. The resulting replacement component oftentimes last longer than the part that it replaced.

MANUFACTURER VALUE — Versa Roll’s durability and productivity, combined with its low cost, offers manufacturers a value that they can’t find anywhere else.

MAINTENANCE COST: Versa Roll’s most compelling characteristic is its versatility. Maintenance staff, with the proper Versa Roll™ products in inventory, can get back up and running in no time. Both the outside diameter and the inside diameter of each Versa Roll™ can be easily machined to develop custom sizes that fit like a glove and work like a horse. This versatile product gives you unmatched control over roller, coaster, and wheel maintenance, allowing you to minimize maintenance supply inventory, and introduce replacement parts that often outperform the parts you replace.

IMPACT ABSORPTION: Unlike metal roller, coaster, and wheel hubs, Versa Roll™ parts absorb shock. This characteristic extends the wear of Versa Roll™ parts. Metal parts tend to bang and pound when shock is introduced, resulting in lost concentricity, increased brittleness, and broken parts. Versa Roll™ parts are constructed of shock absorbing materials that minimize impact-driven damage, extending the life of your parts.

LUBRICATION-FREE APPLICATIONS: In many plant situations where lower levels of stress or speed are placed upon your material convey-ing equipment, Versa Roll™ parts can be run lubrication-free. Our product also brings peace of mind to plan managers who need material conveyed in a way that keeps a clean environment. Versa Roll™ allows a clean environment to remain clean, completely avoiding dirty oil or grease dripping.

LOW WEIGHT: Conveyor systems on aircraft and in other situations oftentimes require weights to be minimized. Compared to roller parts fashioned with metal hubs, often constructed of aluminum or metal alloys, Versa Roll™ parts are lighter in weight. This allows you to cut conveyor weight, while maintaining or improving performance.

CLEAN OPERATION: Metal bearings are collection points for dirt, dust, and grime that emanated from a dusty or dirty work environment. These collected contaminants often lead to expedited wear of these bearings and rollers. Versa Roll™ expels the dirt and grime from the roller parts, stepping up the cleanliness of the conveying system.

EASY TO INSTALL: Versa Roll’s hub (bearing) component makes installation of rollers, coasters, and wheels a snap! Simple standard cold roll steel can be used for shaft fabrication. Shaft diameters and Versa Roll™ parts can quickly and easily be matched for excellent, smooth-running operation. Selecting polished shafts extend the life of Versa Roll™ parts, even more!

QUIET RUNNING: No more metal clanging or screeching. Versa Roll™ ends the noisy work environment by bringing significant reductions to roller and material handling noise.

MOISTURE, OIL, AND SOLVENT RESISTANT: The adjoining table outlines the benefits of these excellent Versa Roll™ characteristics.

MARK-FREE: Versa Rolls do not mark or scratch conveyed products, like many rubber and metal rollers do.

NO FLAT SPOTTING: Leaving some rubber and plastic parts under a stationary load for extended periods can cause permanent flat spots on the rollers. Versa Rolls recover their shape more quickly and more completely than rubber rollers do. Conversely, plastics do not recover, as the roller damage to those materials is often permanent.

Versa Roll™ Advantages:

Versa Roll™ A Revolutionary Concept for the Manufacture of Rollers, Casters & Wheels


versa roll

31

Nominal Bearing PricesO.D. O.D. I.D. Part No. 12" length 24" length

1-1/2" 3/4" 3/8" KVR-15075375 $41.65 —1 No Bore KVR-1510000 41.65 —1 3/8 KVR-1510375 41.65 —1 1/2 KVR-1510500 41.65 —1 3/4 KVR-1510750 — $79.30

1-3/4 1 3/8 KVR-17510375 45.70 —1-7/8 1 1/2 KVR-187510500 48.10 —

2 1 1/4 KVR-2010250 50.40 —1 3/8 KVR-2010375 50.40 —1 1/2 KVR-2010500 50.40 —1-1/2 3/8 KVR-2015375 50.40 —1-1/2 1/2 KVR-2015500 50.40 —1-1/2 5/8 KVR-2015625 50.40 90.851-1/2 3/4 KVR-2015750 50.40 90.851-1/2 7/8 KVR-2015875 — 90.851-1/2 1 KVR-2015100 — 104.90

2-1/2 1-1/2 3/8 KVR-2515375 65.00 —1-1/2 1/2 KVR-2515500 65.00 —1-1/2 5/8 KVR-2515625 65.00 117.501-1/2 3/4 KVR-2515750 65.00 117.501-1/2 1 KVR-2515100 — 150.95

2-3/4 1-1/2 1/2 KVR-27515500 70.65 —1-1/2 5/8 KVR-27515625 — 131.95

3 1-1/2 No Bore KVR-3015000 — 151.651-1/2 3/8 KVR-3015375 80.25 —1-1/2 1/2 KVR-3015500 80.25 —1-1/2 5/8 KVR-3015625 80.25 146.451-1/2 3/4 KVR-3015750 80.25 146.452 1 KVR-3020100 — 169.10

3-1/2 1-1/2 3/8 KVR-3515375 102.10 —1-1/2 1/2 KVR-3515500 102.10 —1-1/2 5/8 KVR-3515625 102.10 188.101-1/2 3/4 KVR-3515750 102.10 188.102-1/2 3/4 KVR-3525750 112.50 —

3-3/4 2 1 KVR-37520100 112.35 207.90 4 1-1/2 3/8 KVR-4015375 122.75 —

1-1/2 1/2 KVR-4015500 122.75 —1-1/2 5/8 KVR-4015625 122.75 227.451-1/2 3/4 KVR-4015750 122.75 227.452 1 KVR-4020100 122.75 227.453 1 KVR-4030100 — 273.00

4-1/2 2 1 KVR-4520100 — 297.70 5 1-1/2 3/8 KVR-5015375 177.40 —

1-1/2 1/2 KVR-5015500 177.40 —1-1/2 5/8 KVR-5015625 177.40 332.001-1/2 3/4 KVR-5015750 177.40 332.002 1 KVR-5020100 177.40 332.00

6 1-1/2 3/8 KVR-6015375 255.30 —1-1/2 1/2 KVR-6015500 255.30 —1-1/2 5/8 KVR-6015625 255.30 479.001-1/2 3/4 KVR-6015750 255.30 479.002 1 KVR-6020100 255.30 479.00

6-1/2 5 1-1/2 KVR-6550150 — 671.85

Nominal OD’s 1-1/2"– 6" _+ 2%

I.D.’s are slightly oversized to provide running clearance for 3/8" to 1" shafts.

Tire

Hub

Versa Roll™Custom shapes &


A low-cost alternative for wheels, casters, rollers, sheaves, etc.

• Two grades of tough K•Prene®urethane permanently bondedtogether, resulting in a hardanti-friction hub with softerouter tire.

• Stocked with a K-900A outertire and an anti-friction K-750Dhub.

• K-750D hub can serve as abearing in some applications.

• ID’s, OD’s, lengths and profilescan be machined to fit yourapplication.

• Use to make low cost OEMcomponents for yourmanufactured products.

• For special applications, otherdurometers are available.


32

custom productsCut, drill, and saw these sheets to suit your needs. Make your own bumpers, wear pads, machinery mounts, etc., in any standard durometer. Backing is 10 ga. (.135) mild steel. Available in any standard durometer. Other backings or urethane thicknesses available.

Can be used for check valves, relief vales, light load ball bearings, etc. Made to order in several durometers and offerd in different colors, including natural. Please specify durometer.

Metal Backed Sheets

Solid Urethane Balls

PhysicalProperties K-551A K-651A K-751A K-853A K-954A

Hardness, Shore A 55 65 75 85 94100% Modulus, PSI 210 320 450 750 1500300% Modulus, PSI 320 580 950 1800 NATensile, PSI 3000 430 5600 6200 7800Elongation, % 560 500 460 430 430Split Tear, D-470, PLI 50 65 75 100 140Tear, Die C, PLI 180 240 330 500 760Bashore Resilience, % 53 44 38 34 24Color White White White White White

Conveyor SystemsChutes and Chute LinersInspection TablesCustom Molded Parts

Rollers and WheelsBumpers and FeetHoppers and Transfer SystemsGaskets and Seals

Acceptable for repeated contact with food under section #177.2600, subpart F, and can be used in continuous and repetitive contact with dry, aqueous and fatty foods. Typical features of these urethanes include outstanding abrasion resistance, high tensile and tear strength, and excellent load bearing capabilities.

Applications include:

FDA Approved Polyurethane

Acrotech has made bumpers in countless shapes and sizes.

Contact our applications department with any possible

applications you would like to discuss. In addition to a general description, a print or a sketch, sample parts

would be helpful if available.

Custom Bumpers

Part No. Diameter 1-24 25-49 50+

Ball-0304 3/4" $3.10 $2.80 $2.50Ball-1000 1 3.90 3.50 3.10Ball-1102 1-1/2 4.90 4.40 4.00Ball-1508 1-5/8 5.10 4.70 4.20Ball-2000 2 7.30 6.60 5.90Ball-2102 2-1/2 10.80 9.70 8.60Ball-2508 2-5/8 11.50 10.60 9.50Ball-3000 3 14.90 14.15 13.40

PricesSpecifications

Urethane Thickness 6" x 6" 12" x 12" 24" x 24"

1/4" $52.00 $90.00 $263.003/8 60.00 105.00 315.001/2 69.00 121.00 368.005/8 77.00 137.00 420.003/4 86.00 153.00 473.007/8 94.00 168.00 525.00

1 102.00 184.00 587.00


press brake die

33

Press Brake DiesK•Prene® urethane female dies are designed for production and will not leave die marks! They feature tremendous load-bearing capacity and excellent resistance to abrasion. These are manufactured in 48" lengths and can be butted together as needed. They are lightweight, easy to handle, stocked for immediate delivery and may be shipped via UPS.

Note: All dies have standard 1/2" x 5/8" tang.

Up to 14ga. M.S.

Up to 22ga. M.S.

1-3/4" TYP

1-1/4" TYP

3/8"

1/2"

3/4"

7/8"

1"

1/4" 2" TYP1-1/4"

1-3/4" TYP

1-7/8" TYP

1/4"

3/8"

1/2"

5/8"

1-1/2"

BLANK

DIE

2-1/2" TYP

2-1/2"

1-7/8" TYP

1-3/4" TYP

5/8"

12" KBDV-0104-12 $34.20 24 KBDV-0104-24 58.95 36 KBDV-0104-36 85.45 48 KBDV-0104-48 110.30

12" KBDV-0308-12 34.20 24 KBDV-0308-24 58.95 36 KBDV-0308-36 85.45 48 KBDV-0308-48 110.30






12" KBDV-1104-12 $79.40 24 KBDV-1104-24 143.10 36 KBDV-1104-36 205.50 48 KBDV-1104-48 265.60


12" KBDB-0000-12 79.40 24 KBDB-0000-24 143.10 36 KBDB-0000-36 205.50 48 KBDB-0000-48 265.60

12" KBDA-0104-12 $34.20 24 KBDA-0104-24 58.95 36 KBDA-0104-36 88.45 48 KBDA-0104-48 110.30

12" KBDA-0308-12 34.20 24 KBDA-0308-24 58.95 36 KBDA-0308-36 85.45 48 KBDA-0308-48 110.30



90 Degree DiesDimensions Lgth. Part No. Price



Up to 18ga. M.S.

Up to 16ga. M.S.

Up to 13ga. M.S.

Up to 11ga. M.S.

Up to 12ga. M.S.

Can be machined

for custom applications.

Ask for a quote.

Up to 18ga. M.S.

Up to 16ga. M.S.

Up to 14ga. M.S.

Up to 12ga. S.S.

Up to 22ga. M.S.

2"

Desired opening equals 8X the material thickness if Mild Steel. Stainless Steel requires 10X the material thickness for die opening. Recommended for air bending, NOT coining.


acroform inserts

34

Acroform™ Advantages:ECONOMICAL

FITTED IN SECONDS

REMOVED IN SECONDS

FORMS MANY BENDS

NO MARKING

ACCURATE FORMING

SHARPER BENDS

REDUCED SPRINGBACK

USES EXISTING FEMALE DIES

NO MATTED DIES REQUIRED

ELIMINATES WEAR

WORN OUT DIES BECOME PRECISION DIES

Just simply slip “Acroform” into an existing female die (Fig. A). Acroform™ sizes correspond to the nominal steel die opening – 1" Acroform™ fits 1" wide standard die. Use approximately 2" longer Acroform™ length than length of bend. If long bends are being made, simply butt Acroform™ ends together (Acroform™ is available in up to 4' lengths) using two-faced tape in the female die to prevent Acroform from separating at the joints (Fig. B). Press or die misalignment is not a problem as it is with hard steel dies.

Remember no-marks on stainless, aluminum, vinyl coated stock and pre-painted stock. Cracking is reduced and in many cases eliminated when forming difficult materials.

IT’S THE FASTEST WAY TO SHORT FLANGE BENDING. FOR EXAMPLE TRY FORMING THESE FLANGES IN STEEL DIES:

• 5/16" Leg, 90° Flange, 16 ga. M.S. 1" wide “V” die


• 1/16" Leg, 90° Flange, .001" Brass, 1" wide “V” die


NOTE: No female die change was necessary for any of the above forming examples. However, bends of this type may cut and otherwise reduce the life of the Acroform™ pad.

For maximum life of Acroform™, use the least penetration that will produce the desired bend and generally do not penetrate to a depth of more than 30% of the Acroform™ height.

*Clean Acroform™ to avoid abrasion.

NOTE: Bends will generally have little or no springback and you may find that standard over-bend punches can be replaced with accurate male punches.

The maximum thickness capacity of your female die remains approximately the same when using Acroform™, except that you can now also form thinner materials without changing the female die to a smaller size.

For guidance of the tonnage required with 1" Acroform™ and a 90° bend in M.S.: 20 ga. – 4 tons/ft. approximate • 16 ga. – 6 tons/ft. approximate • 14 ga. – 9 tons/ft. approximate • 11 ga. – 20 tons/ft. approximate

SPECIAL NOTE: 2" Acroform™ forms all 90° and 30° bends normally requiring smaller die openings. For short flanges and smaller press brakes, particularly in gauge stock, 1" is adequate. Because applications of Acroform™ vary, it is not possible for us to predict precise results covering all cases.

Acroform™ Inserts: It’s as simple & economical as it sounds!

ACROFORM™

FIGURE: ANORMAL APPLICATIONS

FIGURE: BFor long dies or

severe applications

The Acroform™ insert is made of a specially formulated urethane and is designed to fit standard female press brake dies. This composition does not compress, but flows to form the shape of the male punch, literally wrapping the material around the punch, providing a scratch-free, accurate bend.


acroform inserts

35

.015 x 2" wide x 100 ft. ACH-02015 $45.00

.015 x 4" wide x 100 ft. ACH-04015 86.62

.015 x 6" wide x 100 ft. ACH-06015 129.69

.030 x 6" wide x 100 ft. ACH-06030 209.00

.015 x 12" wide x 100 ft. ACH-12015 265.00

.030 x 12" wide x 100 ft. ACH-12030 418.00

.015 x 18” wide x 100 ft. ACH-18015 285.00

.030 x 18” wide x 100 ft. ACH-18030 438.00

.015 x 36" wide x 20 ft. (min.) ACH-36015 7.81/ft.

.030 x 36" wide x 20 ft. (min.) ACH-36030 14.50/ft.

Description Part No. Price General Properties: Specifications Values

Call for volume discounts

Acro-Hyde™ for Press Brake FormingAcro-Hyde™, a urethane film, prevents die marks on a wide range of materials including stainless, aluminum and other polished stocks. Manufacturing costs will be reduced signifi-cantly because the film eliminates secondary polishing or having to scrap expensive blanks. Simply cut Acro-Hyde™ to length, lay it on top of the bottom die and secure one side with *Double-faced Clamping Tape.

Durometer: D2240 85ASpecific Gravity: D792 1.20Tensile Properties: D638Modulus at100% strain 800 psiModulus at300% strain 1800 psiModulus at break 7000 psiModulus of elasticityup to 10% strain 30 psiElongation at break 400Set at break 30Tear Properties:Die C D624 425

1" Insert

2" Insert

1" H

1/2" H

Dimension Length Part No. Price

12" KAF-161000-12 $13.0024 KAF-161000-24 25.9536 KAF-161000-36 38.8548 KAF-161000-48 51.85

12 KAF-162000-12 29.0024 KAF-162000-24 58.0036 KAF-162000-36 87.0048 KAF-162000-48 115.80

For a quick and effective way to avoid die marks on stainless steel, pre-painted material, etc. simply position these 1" or 2" inserts in corresponding 90°bottom dies! The K•Prene® insert will conform to a variety of punch tips. In addition to eliminating the secondary procedure expense of removing die marks, your die will now act like a universal bottom die.The forming of expanded metal or mesh is simplified, as cracking is reduced and often eliminated.

This product is stocked in K•950A. It is available in softer grades.

Acroform™ Inserts

Double-faced Clamping TapeThis double-faced tape securely holds Acroform™ and Acro-Hyde™ in place. It eliminates the need for fixtures, clamping devices, bolts, etc.

*Double-faced Clamping Tape 1" x 36 yards KPT-136 14.00/roll


punch strippers

36

LONGER TOOL LIFE: These strippers generate high holding pressure and strip the blank cleanly from the punch, resulting in an optimum working condition for the punch and longer effective work life.

VERY HIGH LOAD-BEARING CAPACITIES.

SAFER THAN STEEL SPRINGS, SINCE THEY DO NOT FRAGMENTIZE.

EASY TO USE: Simply push stripper onto punch shank (I.D. is slightly undersized to grip punch). First stroke of press forces punch tip through stripper bottom.

IDEAL FOR PUNCHING ODD SHAPED HOLES.

SurStrip™ Punch Strippers

3/16" 11/16" 1-1/4" KSS-316114 $3.401-1/2 KSS-316112 3.65

1/4 3/4 1-1/4 KSS-014114 3.401-1/2 KSS-014112 3.651-3/4 KSS-014134 4.00

5/16 13/16 1-1/4 KSS-516114 3.651-1/2 KSS-516112 4.001-3/4 KSS-516134 4.252 KSS-516200 4.60

3/8 7/8 1-1/4 KSS-038114 4.001-1/2 KSS-038112 4.251-3/4 KSS-038134 4.602 KSS-038200 4.90

1/2 1 1-1/4 KSS-012114 4.251-1/2 KSS-012112 4.601-3/4 KSS-012134 4.902 KSS-012200 5.202-1/4 KSS-012214 5.50

1-1/4 1-3/4 KSS-012134A 5.652 KSS-012200A 5.95

5/8 1-1/8 1-1/4 KSS-058114 4.251-1/2 KSS-058112 4.601-3/4 KSS-058134 4.902 KSS-058200 5.20

3/4 1-1/2 1-3/4 KSS-034134 5.802 KSS-034200 6.452-1/4 KSS-034214 7.002-1/2 KSS-034212 7.652-3/4 KSS-034234 8.20

7/8 1-3/4 1-3/4 KSS-078134 6.752 KSS-078200 7.352-1/4 KSS-078214 7.902-1/2 KSS-078212 8.552-3/4 KSS-078234 9.15

1 2 1-3/4 KSS-100134 7.352 KSS-100200 7.902-1/4 KSS-100214 8.552-1/2 KSS-100212 9.152-3/4 KSS-100234 9.80

1-1/4 2-1/2 2 KSS-114200 12.202-1/4 KSS-114214 13.402-1/2 KSS-114212 14.602-3/4 KSS-114234 15.803 KSS-114300 17.00

1-1/2 2-3/4 2 KSS-112200 14.602-1/4 KSS-112214 15.802-1/2 KSS-112212 17.002-3/4 KSS-112234 18.303 KSS-112300 19.50

2 3 2-1/4 KSS-200214A 21.003-1/4 2-1/4 KSS-200214 21.60

3 4 2-1/4 KSS-300214A 22.054-1/2 2-1/4 KSS-300214 27.50

Stocked in K-950A. Other durometers are available. To order, indicate the part number, durometer, and quantity desired.

Length

O.D.

I.D.

1/4" 6.3mm

AirHole

Designed for direct use in Di-Acro Hand Turret Punches, as well as the VT-19P, VT-19S, and VT-19 NC equipped with 903 style Turrets. See following page for strippers that fit round and shaped punches.

The 906 Series Strippers are manufactured specifically for the VT-19P, VT-19S, and VT-19 NC and the VT-36 NC equipped with the 906 style Turrets.

Station I.D. Part No. Price

B 3/8" 906-1508001 $11.30 B 3/4 906-1508002 11.80 C 3/8 906-1508003 16.20 C 3/4 906-1508004 16.20 C 1 906-1508005 13.20 D 1-3/8 906-1508006 13.20 E-F 2-1/4 906-1508007 23.65

I.D. O.D. Lgth. Part No. Price

Standard Sizes– Strippers with I.D. of 3/16",1/4" and 5/16" have 1/16" dia. air holes. All others have 1/8" air holes.

Di-Acro 902 Series Strippers

Di-Acro 906 Series Strippers

All Stocked 906

are 90A Durometer


strippers

37

Station Punch Size Part No. Price

A Drill No’s. 1 to 66 902-1508001 $11.30 A 1/32" thru 3/8" 902-1508001 11.30 A 25/64" thru 3/4" 902-1508002 11.80 B 49/64" thru 1" 902-1508003 16.20 B 1-1/32" thru 1-5/8" 902-1508004 16.20

Station Punch Size Part No. Price

A 1/32" x1/16" thru 3/8" 902-1508005 $13.20A 1/32" x 7/16" or 1/2" 902-1508006 13.20A 1/16" x 1/8" thru 3/8" 902-1508005 13.20A 1/16" x 7/16" or 1/2" 902-1508006 13.20A 3/32" x 3/16" thru 3/8" 902-1508005 13.20A 3/32" x 7/16" or 1/2" 902-1508006 13.20A 1/8" x 3/16" thru 3/8" 902-1508005 13.20A 1/8" x 7/16" thru 3/4" 902-1508006 13.20B 1/8" x 7/8" or 1" 902-1508007 18.70C 1/8" x 1-1/2" 902-1508008 18.70A 5/32" x 1/4" thru 7/16" 902-1508005 13.20A 5/32" x 7/16" thru 3/4" 902-1508006 13.20B 5/32" x 7/8" or 1" 902-1508007 18.70A 3/16" x 1/4" thru 3/8" 902-1508005 13.20A 3/16" x 7/16" thru 3/4" 902-1508006 13.20B 3/16" x 7/8" or 1" 902-1508007 18.70A 7/32" x 5/16" or 3/8" 902-1508005 13.20A 7/32" x 7/16" thru 3/4" 902-1508006 13.20B 7/32" x 7/8" or 1" 902-1508007 18.70A 1/4" x 5/16" or 3/8" 902-1508005 13.20A 1/4" x 7/16" thru 3/4" 902-1508006 13.20B 1/4" x 7/8" or 1" 902-1508007 18.70C 1/4" x 1-1/2" 902-1508008 18.70A 9/32" x 5/16" or 3/8" 902-1508005 13.20A 9/32" x 7/16" thru 3/4" 902-1508006 13.20B 9/32" x 7/8" or 1" 902-1508007 18.70A 5/16" x 3/8" 902-1508005 13.20A 5/16" x 7/16" thru 3/4" 902-1508006 13.20B 5/16" x 7/8" or 1" 902-1508007 18.70

A 11/32" x 7/16" thru 3/4" 902-1508006 13.20B 11/32" x 7/8" or 1" 902-1508007 18.70A 3/8" x 7/16" thru 3/4" 902-1508006 13.20B 3/8" x 7/8" or 1" 902-1508007 18.70C 3/8" x 1-1/2" 902-1508008 18.70A 13/32" x 1/2" thru 3/4" 902-1508006 13.20B 13/32" x 7/8" or 1" 902-1508007 18.70A 7/16" x 1/2" thru 3/4" 902-1508006 13.20B 7/16" x 7/8" or 1" 902-1508007 18.70

A 15/32" x 9/16" thru 3/4" 902-1508006 13.20B 15/32" x 7/8" or 1" 902-1508007 18.70A 1/2" x 9/16" thru 3/4" 902-1508006 13.20B 1/2" x 7/8" or 1" 902-1508007 18.70C 1/2" x 1-1/2" 902-1508008 18.70B 5/8" x 1" 902-1508007 18.70C 5/8" x 1-1/2" 902-1508008 18.70B 3/4" x 1" 902-1508007 18.70C 3/4" x 1-1/2" 902-1508008 18.70B 7/8" x 1" 902-1508007 18.70C 7/8" x 1-1/2" 902-1508008 18.70C 1" x 1-1/2" 902-1508008 18.70

902 Series Ovals Station Punch Size Part No. Price

A 1/32" x1/16" thru 5/16" 902-1508005 $13.20A 1/32" x 3/8" thru 1/2" 902-1508006 13.20A 1/16" x 1/8" thru 5/16" 902-1508005 13.20A 1/16" x 3/8" thru 1/2" 902-1508006 13.20A 3/32" x 1/8" thru 5/16" 902-1508005 13.20A 3/32" x 3/8" thru 1/2" 902-1508006 13.20A 1/8" x 3/16" thru 5/16" 902-1508005 13.20A 1/8" x 3/8" thru 5/8" 902-1508006 13.20B 1/8" x 3/4" thru 1" 902-1508007 18.70C 1/8" x 1-1/2" 902-1508008 18.70

A 5/32" x 3/16" thru 5/16" 902-1508005 13.20A 5/32" x 3/8" thru 5/8" 902-1508006 13.20B 5/32" x 3/4" or 7/8" 902-1508007 18.70B 5/32" x 1" 902-1508008 18.70A 3/16" x 1/4" or 5/16" 902-1508005 13.20A 3/16" x 3/8" thru 5/8" 902-1508006 13.20B 3/16" x 3/4" or 7/8" 902-1508007 18.70B 3/16" x 1" 902-1508008 18.70A 7/32" x 1/4" 902-1508005 13.20A 7/32" x 5/16" thru 5/8" 902-1508006 13.20B 7/32" x 3/4" or 7/8" 902-1508007 18.70B 7/32" x 1" 902-1508008 18.70A 1/4" x 5/16" thru 5/8" 902-1508006 13.20B 1/4" x 3/4" or 7/8" 902-1508007 18.70C 1/4" x 1" or 1-1/2" 902-1508008 18.70A 9/32" x 5/16" thru 5/8" 902-1508006 13.20B 9/32" x 3/4" or 7/8" 902-1508007 18.70B 9/32" x 1" 902-1508008 18.70A 5/16" x 3/8" thru 5/8" 902-1508006 13.20B 5/16" x 3/4" or 7/8" 902-1508007 18.70B 5/16" x 1" 902-1508008 18.70A 11/32" x 3/8" thru 5/8" 902-1508006 13.20B 11/32" x 3/4" or 7/8" 902-1508007 18.70B 11/32" x 1" 902-1508008 18.70A 3/8" x 7/16" thru 5/8" 902-1508006 13.20B 3/8" x 3/4" or 7/8" 902-1508007 18.70B 3/8" x 1" or 1-1/2" 902-1508008 18.70

A 13/32" x 7/16" thru 5/8" 902-1508006 13.20B 13/32" x 3/4" or 7/8" 902-1508007 18.70B 13/32" x 1" 902-1508008 18.70A 7/16" x 1/2" or 9/16" 902-1508006 13.20B 7/16" x 5/8" or 3/4" 902-1508007 18.70B 7/16" x 7/8" or 1" 902-1508008 18.70

A 15/32” x 1/2” 902-1508006 13.20 B 15/32" x 9/16" thru 3/4" 902-1508007 18.70

B 15/32" x 7/8" or 1" 902-1508008 18.70B 1/2" x 9/16" thru 3/4" 902-1508007 18.70B 1/2" x 7/8" or 1" 902-1508008 18.70B 5/8" x 1" 902-1508008 18.70B 3/4" x 1" 902-1508008 18.70B 7/8" x 1" 902-1508008 18.70

902 Series Rectangulars

902 Series Rounds Station Punch Size Part No. Price

A 1/8" thru 1/4" 902-1508005 $13.20 A 9/32" thru 1/2" 902-1508006 13.20 B 17/32" thru 3/4" 902-1508007 18.70 C 25/32" thru 1" 902-1508008 18.70 C 1-1/16" and 1-1/8" 902-1508008 18.70

902 Series SquaresAll Stocked 902

are 90A Durometer


strippers

38

Urethane Parts for Piranha Ironworkers

B Std. 1-5/32" 31/32" 2" 1-27/32" 500-1453 $8.30C Std. 1-23/32 1-15/32 2-1/2 2-1/16 500-1455 9.35D Std. 2-7/32 1-31/32 3 1-1/2 500-1456 9.35D 1" sq.* 2-7/32 1-31/32 3 1-1/2 500-1520 11.05D Rect.** 2-7/32 1-31/32 3 1-1/2 500-1511 10.50

E Std. 2-29/32 3-3/32 4-9/32 1-1/2 500-1457 11.55E Rect.** 2-29/32 3-3/32 4-9/32 1-1/2 500-1459 13.25

F Std. 3-11/16 3-3/32 4-9/32 1-1/2 500-1462 11.55F 2" sq.* 3-11/16 3-3/32 4-9/32 1-1/2 500-1467 13.25F Rect.** 3-11/16 3-3/32 4-9/32 1-1/2 500-1526 13.25G Std. 4-3/16 3-15/32 4-25/32 1-1/2 500-1463 12.90G Rect.** 4-3/16 3-15/32 4-25/32 1-1/2 500-1527 14.10K Std. *1" & 2" Squares Only.K Rect.** ** 1/2" & Narrower Rectangles Only.

B Std. 1-1/8" 1-1/16" 1-31/32" 2.362" 500-1342 $9.40 C Std. 1-23/32 1-3/4 2-1/2 2-5/16 500-1344 11.55 D Std. 2-7/32 1-31/32 3 2-3/32 500-1351 11.55

D 1" sq.* 2-7/32 1-31/32 3 2-3/32 500-1379 13.25 D Rect.** 2-7/32 1-31/32 3 2-3/32 500-1421 13.25 E Std. 2-29/32 2-31/32 4 2-3/32 500-1354 12.90 E Rect.** 2-29/32 2-31/32 4 2-3/32 500-1448 14.10 F Std. 3-9/32 2-31/32 4 2-3/32 500-1355 12.90

F 2" sq.* 3-9/32 2-31/32 4 2-3/32 500-1531 14.35 F Rect.** 3-9/32 2-31/32 4 2-3/32 500-1530 14.35 G Std. 3-25/32 4-11/32 5-5/32 2-3/32 500-1359 17.40

G 2" sq.* 3-25/32 4-11/32 5-5/32 2-3/32 500-1426 18.50 G Rect.** 3-25/32 4-11/32 5-5/32 2-3/32 500-1528 18.50 H Std. 4-17/16 4-11/32 5-5/32 2-3/32 500-1360 17.40 H Rect.** 4-17/16 4-11/32 5-5/32 2-3/32 500-1452 18.50

J Std. 5-11/32 4-23/32 5-13/16 2-3/32 500-1375 22.35J Rect.** 5-11/32 4-23/32 5-13/16 2-3/32 500-1431 24.25

K Std. 6-5/8 5-23/32 6-5/8 2-3/32 500-1534 26.50 K Rect.** 6-5/8 5-23/32 6-5/8 2-3/32 500-1535 29.25

114 Style Tooling Station Shape Face Dia. I.D. O.D. Lgth. Part No. Price

112 Style Tooling Station Shape Face Dia. I.D. O.D. Lgth. Part No. Price

Strippers - Wiedeman

Face Dia.

O.A.L.

I.D.

O.D.

Piranha Acrotech Durometer Part No. Part No. /Color PricePUNCH ASSEMBLY : STRIPPER BLOCK0330403 PIR-P35/P50 90A-Blue $11.950340403 PIR-P70/P90 90A-Blue 24.95SHEAR HOLDDOWN ASSEMBLY : SHEAR URETHANE0330207 500-5470 95A-Black 53.500340207 500-9975 95A-Black 72.950350207 501-0087 95A-Black 62.500376227 501-0089 95A-Black 58.95SHEAR HOLDDOWN ASSEMBLY : ANGLE URETHANE03302081 500-7043 95A-Black 33.850340208 500-9974 95A-Black 42.750350208 501-0090 95A-Black 35.100376228 501-0091 95A-Black 33.85SHEAR HOLDDOWN ASSEMBLY : ROUND BAR URETHANE0330209 501-0092 95A-Black 14.100340209 501-0093 95A-Black 15.15

For Wiedeman W–20, W–30, W45, & Centrum Models


custom products

39

Part No. Width Length Price

SST-1001 1" 36 yards $46.20SST-1015 1-1/2 36 yards 60.90SST-1002 2 36 yards 74.55SST-1003 3 36 yards 106.05SST-1004 4 36 yards 138.60SST-1006 6 36 yards 208.95SST-1022 22 10' min. 9.45/ft

Slick Strip™ Tape (10Mil.)When applied to metal surfaces, this pressure sensitive tape will reduce friction and protect finished stock (wood, metal, etc.) from scratches and dents. To apply, cut to length with scissors, remove adhesive protector and apply to clean, dry surface. Work hardens.

K-20 AdhesiveEspecially formulated to withstand continuous flexing. Exhibits great strength when used to bond K•Prene® to K•Prene®, metal, or plastic. Two-part kit composed of equal containers of resin and hardener.

• 45 minute pot life • 12 hour cure time • 2-3 day full cure

For applying urethane - to - urethane OR urethane - to - steel.K-20 has high tensile strength, yet remains flexible to withstand continuous shock of press strokes. Composed of a two-part A and B kit. 1+ year shelf life.

1/2 Pint Kit (2 – 1/4 Pint Cans) KPA-202 $22.001 Pint Kit (2 – 1/2 Pint Cans) KPA-203 40.90

2 Pint Kit (2 – 1 Pint Cans) KPA-204 78.45

Description Part No. Price

Applications:Applying K-Prene To

WEAR PADS URETHANE DIE PADS

CLAMPING PADS STEEL CLAMPING PLATES

STRIPPING PADS STEEL STIPPER PLATES

PRESSURE PADS STEEL PRESSURE PLATES

EMBOSSING PADS STEEL SUB-PLATES

WIPING BLOCKS STEEL HOLDERS

FIXTURE BLOCKS STEEL SUB-PLATES

Part No. Taper ID Cup Length Overall Length Price

500-0221 4" to 1-1/2" 7" 8-1/2" $37.80500-9201 Straight ID 2" 5-3/4" 6-1/4" $37.80

Designed to reduce costly repairs and down time of expensive pneumatic tools used in fast paced assembly lines. Stocked in K•Prene™ K-900A which is hard and slick, insuring easy-in and easy-out, yet will flex upon contact. Mounting holes at top and bottom mean secure and easy installation. Contact our factory for additional sizes or styles.

Tool Holsters

500-0221

500-9201

UHMW Polyethylene

Withstands temperatures up tp 150° F.

4 mil. backing


performance

40

K•Prene® and High Performance Applications

Spring Rubbers

K•Prene® has become a great option for numerous applications due to ongoing efforts to reduce weight and increase speed and handling without sacrificing anything in the process. Its growing use makes perfect sense once you consider its characteristics, including the ability to absorb shock, strong, lightweight, fluid and abrasion resistance.

Size Price

1/2" $27.80 5/8 28.30 3/4 30.45 7/8 33.60 1 38.85 1-1/8 40.70 1-1/4 42.55 1-3/8 44.90 1-1/2 47.25 1-5/8 48.00 1-3/4 48.50 1-7/8 47.90 2 53.00

Size Price

.600 $19.95 .600 19.95 .600 19.95 .600 19.95 .700 21.00 .700 21.00 .700 21.00 .700 21.00 .850 22.05 .850 22.05 .850 22.05 .850 22.05 1" 22.85 1 22.85 1 22.85 1 22.85

Spring Rubbers for 5"–5-1/2" Springs

Coil Over Spring Rubbers for 3"–3-1/2" Springs

3"–3-1/2" Springs

5"–5-1/2" Springs

Pullouts are optional ......... $1.05 each

Size

Spring Rubber

Spring

Spring

Use dims, between coil springs to determine part size.

Cut part and feed in between coil springs.

Approximate clearance between bottom of coil spring and top of rubber radius is 1/4".

Durometer:(hardness color table)

40A: Soft

60A: Hard

80A: X Hard

95A: XX Hard

Sway Bar (Stabilizer Bar) BushingsControl Arm BushingsLeaf Spring BushingsStrut Rod BushingsShock BushingsBump Stops & Street Stops Shock Reservoir Isolators

… or many other custom applications that your automobile,motorcycle or snowmobile needs may require.

Automotive and Other High Performance ApplicationsThere are many K•Prene® applications for the automotive industry. They weigh less than existing metal parts and have significant tensile strength.


41

wood indusrtyUrethane Drive Wheels

Re-Covering Bonded Drive Wheels

STOCKED IN 80A DUROMETER – other durometer’s are available upon request.

DESIGNED WITH 3 OR 6 BOLT MOUNTING HOLES to fit various re-usable hubs on woodworking Moulders, Planers and Re-Saws like:

TIRES/WHEELS CAN BE USED IN OTHER APPLICATIONS to drive various other materials beyond wood without marking or damaging.

NON-MARKING: Won’t mark pre-surfaced or pre-finished stock as does steel or rubber wheels.

ELIMINATES SLIPPAGE: Excellent traction out performing steel wheels and they provide feed control for higher output.

GONE ARE RAISED GRAIN PROBLEMS: The high-friction of the tire/wheel provides more traction with less pressure, eliminating the major cause of raised grain. This will increase the overall quality of the product

ECONOMICAL TO USE: Tires/Wheel are easy and quick to change.

When ordering, be sure to specify the durometer desired.

3 Hole Bolt PatternPart No. OD ID Width PriceDW3-0009 4-3/4" 2" 2" $23.10DW3-0010 5-1/2 2-3/16 2 24.15DW3-0011 5-1/2 2-3/8 2 24.15DW3-0012 6 2-1/4 2 34.65DW3-0013 6-5/16 2-3/4 2 30.45DW3-0014 6-5/8 2-3/4 1 21.55DW3-0015 6-5/8 2-3/4 2 34.65DW3-0016 7 2-1/4 2 45.05DW3-0017 8-3/4 4 2 56.35DW3-0018 6 2-3/4 2 29.75DW3-0019 5-1/2 3 2 23.65DW3-0020 7-5/16 2-3/4 2 51.45DW3-0021 5-1/2 3 1 15.75 DW3-0022 5-1/2 2-1/4 3/4 13.15DW3-0023 5-1/2 2-1/4 2 23.10

6 Hole Bolt PatternPart No. OD ID Width PriceDW6-0040 4-3/4" 3" 3/4" $12.30DW6-0041 5-1/2 3 3/4 14.20DW6-0042 6-5/8 3-3/8 3/4 16.70DW6-0043 4-3/4 3 2 21.15DW6-0047 6 3 3/4 15.30

Weinig MoldersPart No. OD Width Duro Price

500-0079 5-1/2" 2" K-800A $30.80500-0080 5-1/2 1-3/16 K-800A 24.75500-0081 5-1/2 3/4 K-800A 22.00500-1102 4-1/2 2 K-800A 25.80

WeiningMattisonBaker

SCMIBridgewoodExtema

WadkinDiehl … and more


wood industry

42

Fits models like: Powermatic, Maggi, Steff, Univer, Rockwell, Oliver, Forest City… and many more. Also made to fit PFH-0070 standard hub. (fig. 1)

TIRES ARE STOCKED IN 60A DUROMETER: other durometer’s are available upon request.

DUROMETER: 70A recommended for rough stock and 60A recommended for smooth surfaces.

ASSEMBLED: Tire will expand after pressing on hub. OD size listed is before pressing on hub.

NARROW STOCK: PFT-0063 is recommended for stock 1" wide or less.

Replacement Urethane Power Feed Tires

Part No. Description OD Width Price

SHT-0066 Tire 120mm (4.75") 60mm (2.75") $15.00

Re-covering of Bonded Power Feed Wheels

Part No. Description OD Width Price

PFT-0060 Tire 3" 1" $8.35 PFT-0061 Tire 4-3/8 1-3/4 15.75 PFT-0062 Tire 4-7/8 1-3/4 23.10 PFT-0063 Tire 4-3/8 2 18.90 PFT-0064 Tire 4-3/8 2-1/4 22.05 *PFT-0065 Tire 4-3/8 2 24.70 * This ribbed design works best for slick surfaces. Tire OD’s increase when installed. PFH-0070 Hub–fits all tires except PFT-0060 $8.95 PFT-TOOL Tire mounting tools (see fig 2) 18.90

Part No. OD Width Duro PriceSMALL Power Feeder RFP-001 3-1/8" 1-1/8" K-700A $18.00 Commatic, Delta, Grizzley etc.LARGE Power Feeder RFP-002 4-5/8 2 K-700A 30.64 Delta, Jet, Nandini, Steff, Maggi etc.

(fig. 1)

(fig. 2)

Our tires feed better and cost less than the rubber-coated hubs which are standard on many feeders.

REPLACEMENT TIRE ONLY: Tire fits re-usable 2 piece hub

POWER FEEDER MODELS: Fits most import and standard domestic feeders and Cantek and Co-matic models AF38, AF48. Other models include:

Silver Northech Powermatic …and others

TIRES ARE STOCKED IN 60A DUROMETER: other durometer’s are available upon request.

Durometer 70A recommended for rough stock and 60A recommended for smooth surfaces.

2.00 Width

Ø1.38 Width

Ø3.20

2 Holes at .385 Dia. on 1.84 B.C.

Press Fit Power Feed Tires

Other durometers are available upon request.


replacement

43

OEM Replacement Parts

Roller Manufacturing & Re-coveringManufacturing of steel shafts coated with K•Prene®, complete with various groove types is available to satisfy many applications. Removal of worn out or damaged coatings and re-covering with K•Prene® is also available.

Barr Mullin Wonder Saw Rollers

Brute - Press Fit

Brandt Edge Bander/Arminus Profile

Sander - Holddown Rollers

Gre Con Optimizer Holddown Rollers

Jenkins Tenoner Hold Down Pad

Progress Tennon Machine Pads

Shaper Feed Tires - Press Fit

Acrotech has redesigned several parts in response to requests for parts that “work better, cost less, and are more readily available!” Let us know if you have suggestions.

Some of the brands and models are listed below:

Several groove types, angles, widths and depths are available.

Challoner Tenoner Holddown PadPart No. Length Width Duro Price

500-2570 2-11/16" 1" K-600A $4.00500-8269 2-11/16 1 K-700A 4.00

DiamondSerrateHerring BoneHorizontalVerticalSmooth

Re-covering of OEM Hubs and ShaftsWith so much machinery imported, this service results in better performance,quicker delivery and reduced expenses! Below are several examples of brands and models. To order, send part/parts with information — re: the part number, durometer, and quantity desired.

HUBSBarr Mullin Wunder Saw - Turbo

Gre Con Optimizer In-Feed Wheel

Hessman Sander

Mattison Molder

Multiscore

Power Feeder – Sm.

Commatic, Delta, Grizzley, etc.

Power Feeder – Lg.

Delta, Jet, Nandini, Steff, Maggi, etc.

Ultimizer

Weinig Molders

SHAFTSAEM Planer Sander

Barr Mullin - Brute Pressure Roller

Bridgewood Stile/Rail Trimmer

Delta Planer

Makita Wood Planer-2030 & 2040

Mereen-Johnson Gang Rip Saw

Mid Oregon Gang Rip Saw

Progressive Gang Rip-pressure roller

SAC - Planer Roller

Sears Planer

Williams & Hussey Molder

Some of the brands and models are listed below:


policies

Acrotech WarrantyDefective parts of a Roll Bending Machine manufactured by ACROTECH will be replaced or repaired at no charge for twelve (12) months following delivery to the original purchaser. Labor is included for the first 90 days. This warranty becomes void when products have not been used according to instructions furnished by ACROTECH nor does it cover any altered parts or unauthorized repairs. We cannot be responsible for the cost of repairs made or attempted outside of our factory. All other warranty claims are made FOB our plant, providing such item(s) is returned freight prepaid to our plant for examination.

This warranty does not apply to parts, components or systems not manufactured by ACROTECH.

These products are covered instead by the existing warranties, if any, of their manufacturers. Normal service items with a reasonable life expectancy of less than one year are warranted only to the extent of the reasonable life under normal use and service.

Authorization must be obtained from ACROTECH before returning parts or equipment to the factory. ACROTECH will satisfy this warranty by replacing the product or refunding the purchase price upon receipt and inspection of the product.

Standard and custom urethane products will be for a period of 60 days after shipment from defects in material only. Misuse of the urethane material voids the warranty. Parts cannot be guaranteed to perform for specific applications without full disclosure of application prior to manufacturing by ACROTECH.

ACROTECH’s liability under this warranty shall not exceed the amount paid for the product.

THIS IS ACROTECH’S SOLE WARRANTY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHICH ARE HEREBY EXCLUDED, INCLUDING IN PARTICULAR ALL WARRANTIES OF MERCHANTABILITY, FITNESS OR ANY LOSS, DAMAGE OR EXPENSES DIRECTLY OR INDIRECTLY RELATED TO THE USE OF ITS PRODUCT OR FROM ANY OTHER CAUSE OR FOR CONSEQUENTIAL DAMAGES INCLUDING, WITHOUT LIMITATION, LOSS OF TIME AND LOSS OF PRODUCTION.

IT IS EXPRESSLY UNDERSTOOD THAT ACROTECH IS NOT RESPONSIBLE FOR DAMAGE OR INJURY CAUSED TO OTHER PRODUCTS, MACHINERY, PROPERTY OR PERSONS BY REASON OF THE USE OF ITS PRODUCTS.

Acrotech Terms, Conditions & Ordering Information

MADE IN THE U.S.A.

Cat. 2015-1, effective 11/1/15

To OrderIndicate the part number (or the dimensions if there is no part number), along with the durometer and quantities desired for each part. Minimum orders required as noted.

TermsNet due 30 days with approved credit, C.O.D., Visa, MasterCard, Discover and American Express.

AvailabilityProducts are stocked in K-400A, K-600A, K-800A, K-900A, K-950A and K-750D, unless noted otherwise, and often can be shipped the same day as ordered.

PricesSubject to change without notice. Cutting charges may be additional.

Return PolicyPlease note, custom and non-standard orders shipped to customer specifications cannot be returned. A 20% re-stocking fee will be charged when returning stocked products.

To return defective goods for replacement or credit, Acrotech must be notified within 30 days of your receipt of the material. All requests for credited returns must be confirmed with Acrotech before the material is returned. Acrotech’s liability for returned materials is limited to the cost of our materials.

AEA

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