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BROCHUREGAS SPRINGS

2

Berthold Marx is proud to have served industry since 1945

Since the beginning of the 1970s we have been developing both our knowledge in the gas

spring market and a product quality on which our reputation is based.

-

Our strengths:

• Availability

• Quick delivery

• Quality

• Service

With more than 1000 gas spring models in stock and a technical sales team at your disposal,

Our detailsBERTHOLD MARX

1 rue de la gravière

Email: [email protected]

Website: www.bertholdmarx.com

Saint Vit (25)

3 BROCHURE GAS SPRINGS

Why use gas springs

When are gas springs needed?To manoeuvre, raise, lower, pivot or counterbalance a load with a precise movement between

two set points at a controlled speed.

There is a wide range of possible applications: All types of industry are exposed to the "Gas Spring Revolution"

many applications for them.

Gas springs are used on nearly all commercial vehicles

The range is endless.

The advantages of gas springsOver a mechanical spring:

A gas spring has a hydraulic damping length at the end of the stroke.

A gas spring is more compact than its mechanical equivalent.

A gas spring may reach a 10 year life span in certain applications and still remain completely

reliable.

A gas spring is corrosion-proof.

A gas spring is easy to use.

Choose wisely with BM® Gas Springs!

Important information Please read carefully.

A Gas spring is not a security device.

1 - DIMENSION AND PRESSURE UNITSAll dimensions are shown in millimetres Newtons (N / F1), and all

temperatures are in degrees Celsius (C°).

2 - INSTALLATION CONDITIONS

• The springs must not be under any lateral pressure.

•

•

•

•

rod.

• The attachment points should be in line. There should be some margin allowed so that the rod

is not put under lateral pressure.

• Avoid all impacts on the gas spring.

• Never take a gas spring apart: pressurised gas.

•

3 - INSTALLATION WARNINGS -

ucts. Do not tighten the rods with pliers or in a clamp without using protective lead, aluminium

or copper grips.

4 - CONDITIONS OF USE

•

•

•

BROCHURE GAS SPRINGS

5 - STORAGE CONDITIONS BEFORE USE •

ambient temperature.

•

down.

6 - GUARANTEE•

•

must remain visible.

7 - NEUTRALIZATION

• Grip the tube lightly in a clamp.

•

of the tube.

To carry this out:

•

• Use a metal handsaw.

• Place a cloth over the blade.

• As soon as a whistling sound is heard, stop sawing.

• The gas removal will be complete when the rod can easily be moved by hand.

8 - TOLERANCE MARGINS

Force in Newtons Margin of tolerance

Mechanism diagram

• F1 F3 C

• The difference between the spring force and the force required to compress the spring is due

FR

• The SPRING STIFFNESS X = F2 / F1

D1(mm)

D2(mm)

Spring Force(F1 in N)

M a x i m u m

length (mm)

X(~)

C(mm)

Max FR (N)

1.30

30

10 21

27 2100

Function diagram for compression gas spring

D1

FRN

F3Clossure

Opennesse

D2

F4

F1

Hydraulic

C C

Pneumatic

mm

F2

Rod

NitrogenOilPistonStopGuide

TubeSeal


Choice guide

N = number of gas springs, RH = Meter, m = KG, x2=Meter

Spring Force Calculation:

Other suggestion:

The spring stroke is directly associated with the opening angle of the hatchback, and so we

recommend the following ratio:

Stroke = 1/3 of RH per 90°

The installations noted above are examples only and do not in any way incur the liability of Berthold Marx.

αRH

RM

x2x1

y1y2

mα

RH

RM

x2

x1

y1

y2

m

αRH

RM

x2

x1

y1

y2

m

α

x1

y1

y2

m

Ø 15Ø 6

M6

M6

C = STROKE

E = LENGTH10

Ø 15

Ø 6,1

13

Ø 63 (THIKNESS)

C = STROKE

E = LENGTH

COMPRESSION SPRINGS WITH THREADED ENDS DIAMETER 6

COMPRESSION SPRINGS WITH WELDED EYES DIAMETER 6

DIAMETER 6 AVAILABLE LENGTHS AND FORCES


C - Stroke in mm

C - Stroke in mm

E - Length in mm

E - Length in mm

F1 - Force in Newtons


Reference

Reference

20

100

100

120

20

20

100

120

DELIVERY WITHIN 24 TO 48H


Ø 18Ø 8

M6

M6

C = STROKE

E = LENGTH10

Ø 18

Ø 8,1

14

Ø 85 (THIKNESS)

C = STROKE

E = LENGTH





C - Stroke in mm

C - Stroke in mm

E - Length in mm

E - Length in mm



Reference

Reference

70

90

90

100

120

200

210

220

72

90

100

120

200

200

200

220

10

STANDARD M6 ACCESSORIES

Ø 8

22

M5

M6

REF 92220-6-5 ACIER

11

18

REF 92989 ACIER

10

14 13

M6

27

REF 72421 PLASTIQUE

18

A A

Ø10

11

M6

REF 92720 PLASTIQUE

25

A A

Ø10

M6

11

REF 92220 ACIER

10

12

25

M6

Ø 13

30

13

28

M8

M6

10

REF 92220-13 E ACIER

REF 92722 PLASTIQUE

20

31

13

17

Ø 1

0

M6

REF 92221 ACIER

M6

10

20

10

REF 92990A ACIER

Ø 10

M8

13

31

27,5


STEEL

STEEL

STEEL

STEEL

STEEL

STEEL



REF ST 1305 ACIER

9

15

A A

25

11

M6

6,1

5

11

REF ST 1304 ACIER

15 9

A A

5

8,1

22

11

12

M6

REF 92521 PLASTIQUE

8,6

15

A A

8

13

21

23,5

M6

REF ST 072421-110 PLASTIQUE

18

AAØ10

10°

11

M6

REF 92528 PLASTIQUE

10

M6

Ø 6

,1

25

11

Ø 1

6

REF 92259 ZAMACK

16,5

A A

8,5

11

8

25

REF 92522 PLASTIQUE

14

25

11

13

16

8,5

M6

REF 92263 ALU

8,6

15

A A

8

17,5

M6

REF 92220-37

M6

15

10

37

Ø 14,8

ACIER

STEEL

STEEL

STEEL

12

Ø 21Ø 10

M8

M8

C = STROKE

E = LENGTH10

Ø 21

Ø 8,1

14

Ø 105 (THIKNESS)

C = STROKE

E = LENGTH





C - Stroke in mm

C - Stroke in mm

E - Length in mm

E - Length in mm



Reference

Reference

100 100

100

200 100

100

300 100

330 100

100 to 1000

100 to 900


100

200

300

300 711


Ø 27Ø 14

M8

M8

C = STROKE

E = LENGTH10



C - Stroke in mm E - Length in mm F1 - Force in Newtons Reference

100

200

200

300


REF 92267 AC ACIER

12 17

M8

20

10

Ø10,1

REF 92262-10-8 ACIER

Ø 16

35

15

35

M10

M8

11

REF 92266 ZAMACK

A A

14

25

M8

10,1

18

REF 92265 ACIER

25

16,5

M8

13

12

M8

Ø13

REF 92261 ZAMACK

A A

11

12

8,2

M8

20

REF 92267 ZAMACK

A A

10,1

12

11

20

M8

REF 92262 ACIER

30

16,5

M8

13

14

M8

Ø13

REF 92260 ZAMACK

A A

8,2

18

14

25

M8

REF 92264 ZAMACK

25

A A

M8

8,2

10


STEEL

STEEL

STEEL STEEL

BROCHURE GAS SPRINGS


REF 92215 ACIER

20

10

M8

10

REF HG 092216 ACIER15 11

A A

5

8,5

14

M8

25

11

REF 92995 ACIER

10

12M

8

24

28

REF 072421-8 PLASTIQUE

18

A AØ10

11

M8

REF ST 092266N ACIER

10,1

18

34

25

18

11

M8

REF ST 092264AC ACIER

14

A A

12

25

8,5

10

11

M8

REF 92214

M8

15

Ø 1

0

25

Ø 14,8

ACIER

REF HG CH ACIER

14

A A

12

20

8,5

10

11

M8

REF HG 201 ACIER

14

A A

12

23

9

M85

8,5

STEEL

STEEL

STEEL

STEEL

STEEL

STEEL

STEEL

STEEL

Ø 10 Ø 28M

8

C = STROKE

E = LENGTH L2

10

M8

10 20

Valve

TRACTION GAS SPRINGS WITH THREADED END, ROD DIAMETER 10

FUNCTION DIAGRAM FOR TRACTION GAS SPRING


OTHER SIZES: CONTACT US

C - Stroke in mm E - Length in mm F1 - Force in Newtons Reference

100 300

200

300 700

900

Valve

Thread Rod Nozzle Nitrogen Tube Drilling

Guide Seal Piston SealBase plate


D1D

PROTECTION TUBES

LOCKING TUBES

AVAILABLE SIZES: CONTACT US

Use Protects the gas spring rod against mechanical, chemical or heat damage. Allows

for an improved alignment of the rod.

Application Coating bath, manufacturing assembly line, extremely polluted areas etc.

Material St 34 steel tubing

Surface coating Black epoxy, matte, galvanised or stainless steel.

The locking tube secures the gas spring in an open position.


Material: Rod

Body

Ends Zinc-coated steel

10-200

20-300

20-300

100-1200

100-1200

30-700

100-1000

100-1000

MADE TO MEASURE STEEL GAS SPRINGS

AVAILABLE SIZES

RODS / BODIES (mm) FORCES (N) STROKES (mm)

Rod wiper seal

Grease chamber

Special fabrication for high temperatures

Special fabrication for low temperatures



Material: Rod

Body

Ends

10-200 X X

20-300 X X

20-300 X X

X X

X X

100-1100 X X

100-1100 X X

30-700 X X

X X

X X

X X

X

STAINLESS STEEL GAS SPRINGS

AVAILABLE SIZES

RODS / BODIES (mm) FORCES (N) STROKES (mm) 304 316L

ACCESSORIES: RANGE OF STAINLESS STEEL ENDS AND BALL JOINTS IN STOCK

20

LOCKING ON REQUEST

BM® locking Gas Springs are lockable along the complete stroke. Whatever the application

wish. The possibilities are endless with the various models offered in

the range: Elastic lockable, Rigid lockable and Absolute rigid locka-

bles.

By opening the valve control integrated in the gas spring rod

oil for rigid lockables. When you release the control the

spring locks in position.

BM® Gas springs can be manufactured in steel,

steel.



SPECIFIC ACCESSORIES

REF HG 92293 ACIER

58

10

2

10

44

55

41

22.5

REF ST 92992 ACIER

10,1

62

40

20 24

30

Vue de profil Vue de face

8,3

3

6,5

REF ST P101 ALUMINIUM

M6

59,5

16

47,5

28,5

4,5

32,5

25

7

25

REF ST P100 (Ø6)

REF ST P100D8 (Ø8) ALUMINIUM

20

29

60

7

8

6,5

31

6 ou 8Axe

4,5

46 22,5

REF HG 92293-13 ACIER

5

8

10

2

13

44

55

41

22.5

REF HG 101 ACIER

30

55

4,3

7

3

5

11

8

5

REF ST 92298

37

55

4,5 7

,5

69

1510

3

47

ACIER REF HG 100/2I INOX

51

18

6,5

70

2,5

13 8

20

REF HG 100/2 ACIER

51

18

6,5

70

2,5

13 8

20

STEEL STEEL

STEEL STEEL

STEELSTEEL

22

SPECIFIC ACCESSORIES

STANDARD ACCESSORIES M14

K

SW

GL

D1a

a

J

F

L

E

M

B

G

D2 O

CHAPE À OEIL ACIER

d

c

a b e

f

f

FORK ST F AXIS ST ES

Reference D2 B M O D1 L GL K J E Eye Thread SW Angle Weight

ST GI 6 9 20 30 12 13 10 12,7 11 13 27

ST GI 8 12 9 13 13

Reference a b c d e f g

ST F6 12 12

ST F8 32

ST ES6 - - - - - -

ST ES8 - - - - - -

REF ST Gi14 ACIER

Ø 1

4

57

13,5

19

M14x1,5SW22

75

REF HG CH14 ACIER

Ø 25

Ø 1

4,1

épaisse

ur 14

55 4

2

22

M14x1,5

REF ST F14

56

2827

14

Ø14

REF 92262-14 ACIER

M14x15

4560

20

28



STEEL STEEL STEEL STEEL

STEEL

STEELSTEEL


General Conditions of Sale

Our product guarantee only covers an exchange and cannot in any case be a payment for replacement costs or for

any other costs subsequent to this replacement. All claims relating to product conformity, excluding any claims for

No returned merchandise will be accepted except in the event of it being expressly authorised in writing by BERTHOLD

the original packaging, undamaged and with the return document provided by us. Any return accepted will require

issued only as a credit note.

The studies and recommendations are shown for illustrative purposes only and may not be considered as constituting

professional service provider.

The delivery dates shown on documentation issued by BERTHOLD MARX are estimates and will not in any case incur

our company's liability.

the entire sale cost and expenses associated with the merchandise.

A Gas spring is not a security device.

delivery methods with our clients. We request that you check the weight of all packages upon delivery. We are not

out on receipt of the merchandise.

By express agreement, a default in payment for our merchandise on the agreed due date will require the immedi-

ate payment of all remaining amounts, regardless of the payment terms agreed with the application, and as per the

-

ment of the price has been received. Whilst the price is not paid in full, the sales merchandise remains the property

of the seller.

Payment:The normal payment of accounts by clients is 30 days from the invoice date; other payment plans may be

be decreased accordingly.

of an amount equal to one and a half times the legal rate of interest may be applied.

notice with no response, the present sale with be legally cancelled, if this is in the seller's interest.

The same decision will potentially designate an expert to assess the state of the returned merchandise, and to value

it, on this basis the parties' accounts will be settled, taking into account the compensation for which the buyer is liable

to complete the sale.

in the event of proceedings.

1 rue de la gravière

Email: [email protected]

Website: www.bertholdmarx.com

OUR OTHER BROCHURES

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