Pneumatic · 2-Finger Parallel Gripper · Sealed...

DPG-plusPneumatic · 2-Finger Parallel Gripper · Sealed Grippers

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Sizes40 .. 200

Weight0.25 kg .. 9.5 kg

Gripping force125 N .. 6230 N

Stroke per finger2 mm .. 25 mm

Workpiece weight0.6 kg .. 22.1 kg

Application example

Sealed and extremely robust rotarygripping combination for use in toughenvironments such as foundries, grindingshops or forges

DPG-plus 125 2-Finger ParallelGripper, with top fingers equippedwith carbide clamping inserts

SRU 35.1-180-3-4 Rotary Actuatorin sealed IP67 version


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Robust interior multiple-tooth guidancefor the precise handling of all kinds of workpieces

Wiper seal on the outer round guidefor permanent, secure gripper sealing

High maximum load capabilitiessuitable for the use of long gripper fingers

Sealed 2-finger parallel gripperis conform to IP67 requirements despite a high moment-loadcapabilities

Oval piston drive designfor maximum gripping forces

Mounting from two sides in three screw directionsfor universal and flexible gripper assembly

Air supply via hose-free direct connection or screwconnectionsfor the flexible supply of compressed air in all automation systems

Compact dimensionsfor minimal interfering contours in handling

Despite the high moment load capabilities of the base jaws, thissealed 2-finger parallel gripper conforms to the IP 67 requirementsand does not permit any substances from the working environmentto penetrate the interior of the unit.

Sealed Grippers

Area of applicationThe DPG-plus is ideally suited for the handling of rough or dirtyworkpieces. Its area of application extends from the loading andunloading of machines, such as in the case of sanitary blocks,grinding machines, lathes or milling machines, to handling tasks inpainting plants, in powder-processing and underwater.

Your advantages and benefits

General information on the seriesWorking principleWedge-hook kinematics

Housing materialAluminum alloy, hard-anodized

Base jaw materialHardened steel

ActuationPneumatic, with filtered compressed air (10 µm): Dry, lubricated or non-lubricatedPressure medium: Requirements on quality of the compressed air according to DIN ISO 8573-1: 6 4 4.

Warranty24 months

Scope of deliveryCentering sleeves, O-rings for direct connection, assembly and operating manual withmanufacturer’s declaration

Gripping force safety devicewith either mechanical gripping force safety device or SDV-P pressure maintenancevalve


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Inner base jaw (multiple-tooth guidance)for heavy moment loads

Outer base jaw (round)providing a sealable, round surface

Wiper sealfor permanent, secure gripper sealing

Oval piston with rod and wedge hookfor power generation and transmission

The piston is moved up or down by means of compressed air. The angled activesurfaces of the wedge hook produce a synchronized, parallel jaw movement.

Function descriptionPlease note that an additional hose for bleeding or purging the air is essential for thegripper, i.e. it requires three hoses in total. See the assembly and operating manualfor more detailed information.

Version with higher grip forces When higher gripping forces are required

Options and special information

Sectional diagram



Gripping forceis the arithmetic total of the gripping force applied to each base jaw at distance P(see illustration), measured from the upper edge of the gripper.

Finger lengthis measured from the upper edge of the gripper housing in the direction of the mainaxis.

Repeat accuracyis defined as the spread of the limit position after 100 consecutive strokes.

Workpiece weightThe recommended workpiece weight is calculated for a force-type connection with acoefficient of friction of 0.1 and a safety factor of 2 against slippage of theworkpiece on acceleration due to gravity g. Considerably heavier workpiece weightsare permitted with form-fit gripping.

Closing and opening timesClosing and opening times are purely the times that the base jaws or fingers are inmotion. Valve switching times, hose filling times or PLC reaction times are notincluded in the above times and must be taken into consideration when determiningcycle times.

General information on the series

Accessories from SCHUNK –the suitable supplement formaximum functionality,reliability and performance ofall automation modules.

Centering sleeves Fittings MMS magnetic switches KV/KA sensor cables

Quentes plastic inserts

HKI gripper padsSDV-P pressuremaintenance valves

Accessories

V sensor distributors

� For the exact size of the required accessories, availability of this size and the designation and ID, please refer to the additional views at the end of the size in question. You will find more detailed information on our accessory range in the „Accessories“ catalog section.

DPG-plus 40Pneumatic · 2-Finger Parallel Gripper · Sealed Grippers

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Technical data

Finger load

� Moments and forces apply per base jaw and may occursimultaneously. My may arise in addition to the momentgenerated by the gripping force itself. If the max.permitted finger weight is exceeded, it is imperative tothrottle the air pressure so that the jaw movement occurswithout any hitting or bouncing. Service life may reduce.

Gripping force, I.D. gripping

Gripping force, O.D. gripping

0

50

100

150

200

250

0 10 20 30 40L [mm]

F [N

]

DPG+40/4 bar DPG+40/6 bar

DPG+40 IS/4 bar DPG+40 IS/6 bar

0

50

100

150

200

250

0 10 20 30 40L [mm]

F [N

]

DPG+40/4 bar DPG+40/6 bar

DPG+40 AS/4 bar DPG+40 AS/6 bar

Gripping force

Finger length

Gripping force

Finger length

Mx max. 10.0 NmMy max. 14.0 NmMz max. 5.0 NmFz max. 200.0 N

Description DPG-plus 40 DPG-plus 40-AS DPG-plus 40-ISID 0304291 0304293 0304295

Stroke per jaw [mm] 2.5 2.5 2.5Closing force [N] 110.0 145.0Opening force [N] 120.0 165.0Min. spring force [N] 35.0 45.0Weight [kg] 0.12 0.14 0.14Recommended workpiece weight [kg] 0.55 0.55 0.55Air consumption per double stroke [cm3] 2.5 5.5 5.5Minimum pressure [bar] 2.5 4.0 4.0Maximum pressure [bar] 8.0 6.5 6.5Nominal pressure [bar] 6.0 6.0 6.0Closing time [s] 0.03 0.03 0.03Opening time [s] 0.03 0.05 0.05Max. permitted finger length [mm] 40.0 40.0 40.0Max. permitted weight per finger [kg] 0.1 0.1 0.1IP rating 67 67 67Min. ambient temperature [°C] -10.0 -10.0 -10.0Température ambiante max. [°C] 90.0 90.0 90.0Repeat accuracy [mm] 0.01 0.01 0.01



The mechanical gripping force safety device ensures a minimum gripping force even ifthere is a drop in pressure. This acts as closing force in the AS version, and as openingforce in the IS version. In addition, the gripping force safety device can also be employedas a gripping force booster or for single-acting gripping.

�� Projection only with AS version

The direct connection is used for supplying compressed air to the gripper without hoses.Instead, the pressure medium is fed through bore-holes in the mounting plate.

� Adapter� Gripper

Main views

The drawing shows the gripper in the basic version with closed jaws, the dimensionsdo not include the options described below.

A,a Main/direct connection, gripper openingB,b Main/direct connection, gripper closingS,s Air purge or ventilation hole� Gripper connection� Finger connection

AS/IS gripping force safety device

� The SDV-P pressure maintenance valve can be used as a gripping force safetydevice (see „Accessories“ catalog section).

Hose-free direct connection


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� Please note the minimum permitted bending radii for the sensor cables, which aregenerally 35 mm.

� Two sensors (NO contacts) are required for each gripper, plus extension cables as anoption.

Permitted rangeNon-permissible range

The curve applies to the basic version (stroke -1). For other versions, the curve will beparallel but offset in line with the max. permitted finger length.

End position monitoring: Electronic magnetic switches, for mounting in C-slotDescription ID Recommended productMMS 22-S-M5-NPN 0301439MMS 22-S-M5-NPN-SA 0301449MMS 22-S-M5-PNP 0301438MMS 22-S-M5-PNP-SA 0301448MMS 22-S-M8-NPN 0301433MMS 22-S-M8-NPN-SA 0301443MMS 22-S-M8-PNP 0301432 •MMS 22-S-M8-PNP-SA 0301442MMSK 22-S-NPN 0301435MMSK 22-S-NPN-SA 0301445MMSK 22-S-PNP 0301434MMSK 22-S-PNP-SA 0301444

y

z

0

5

10

15

20

25

30

35

40

45

0 10 20 30 40 50Y [mm]

Z [

mm

]

Sensor system

Maximum permitted finger offset

Extension cables for proximity switches/magnetic switchesDescription IDKA BG05-L 3P-0300 0301652KA BG08-L 3P-0300-PNP 0301622KA BW05-L 3P-0300 0301650KA BW08-L 3P-0300-NPN 0301602KA BW08-L 3P-0300-PNP 0301594KA BW08-L 3P-0500-NPN 9641116KA BW08-L 3P-0500-PNP 0301502KV BW08-SG08 3P-0030-PNP 0301495KV BW08-SG08 3P-0100-PNP 0301496KV BW08-SG08 3P-0200-PNP 0301497


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� Please note that an additional hose for bleeding ventilation or purging the air is essential for the gripper, i.e. it requires three hoses in total. See the assembly and operating manualfor more detailed information.

Technical data

Finger load




0

200

400

600

0 10 20 30 40 50L [mm]

F [N

]

DPG+50/1 DPG+50/2DPG+50/1 IS DPG+50/2 IS

0

200

400

600

0 10 20 30 40 50L [mm]

F [N

]

DPG+50/1 DPG+50/2

DPG+50/1 AS DPG+50/2 AS

Gripping force

Finger length

Gripping force

Finger length


Description DPG-plus 50-1 DPG-plus 50-2 DPG-plus 50-1-AS DPG-plus 50-2-AS DPG-plus 50-1-IS DPG-plus 50-2-ISID 0304301 0304302 0304303 0304304 0304305 0304306

Stroke per jaw [mm] 4.0 2.0 4.0 2.0 4.0 2.0Closing force [N] 125.0 260.0 165.0 345.0Opening force [N] 130.0 275.0 170.0 360.0Min. spring force [N] 40.0 85.0 40.0 85.0Weight [kg] 0.25 0.25 0.3 0.3 0.3 0.3Recommended workpiece weight [kg] 0.6 1.3 0.6 1.3 0.6 1.3Air consumption per double stroke [cm3] 5.0 5.0 12.0 12.0 12.0 12.0Minimum pressure [bar] 2.5 2.5 4.0 4.0 4.0 4.0Maximum pressure [bar] 8.0 8.0 6.5 6.5 6.5 6.5Nominal pressure [bar] 6.0 6.0 6.0 6.0 6.0 6.0Closing time [s] 0.03 0.03 0.03 0.03 0.05 0.05Opening time [s] 0.03 0.03 0.05 0.05 0.03 0.03Max. permitted finger length [mm] 50.0 40.0 50.0 40.0 50.0 40.0Max. permitted weight per finger [kg] 0.15 0.15 0.15 0.15 0.15 0.15IP rating 67 67 67 67 67 67Min. ambient temperature [°C] -10.0 -10.0 -10.0 -10.0 -10.0 -10.0Température ambiante max. [°C] 90.0 90.0 90.0 90.0 90.0 90.0Repeat accuracy [mm] 0.01 0.01 0.01 0.01 0.01 0.01OPTIONS and their characteristicsKVZ for increased grip force ID 0304307 0304308 0304309 0304300Description DPG-plus 50-1-KVZ DPG-plus 50-2-KVZ DPG-plus 50-1-AS-KVZ DPG-plus 50-1-IS-KVZClosing force [N] 225.0 470.0 265.0Opening force [N] 235.0 505.0 275.0Weight [kg] 0.29 0.29 0.34 0.34Maximum pressure [bar] 6.0 6.0 6.0 6.0Air consumption per double stroke [cm3] 10.0 10.0 17.0 17.0Max. permitted finger length [mm] 40.0 30.0 30.0 30.0







Main views

For finger connection, we recommend only using two of the four centering bores foreach finger. The drawing shows the gripper in the basic version with closed jaws, thedimensions do not include the options described below.



� The SDV-P pressure maintenance valve can also be used (see „Accessories“catalog section) for I.D. or O.D. gripping as an alternative or in addition to thespring-loaded, mechanical gripping force safety device.



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�� With AS / IS version

The KVZ grip-force cylinder increases the gripping forces during opening and closing. Asecond, in series-connected piston also increases the force on the wedge hook. The fullgripping force shown in the data table is sometimes only reached after a few hundredgripping cycles.

KVZ for increased grip force

You can find more detailed information and individual parts of the above-mentioned accessories in the „Accessories“ catalog section.