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Does a gas spring have to be maintained?

No, Bansbach gas springs are maintenance-free. Generally, the piston rod must not be greased or oiled.

Has a gas spring to be protected against dirt, paint, scratches, impacts,...?

The piston rod has to be protected against impacts, scratches, dirt and escpecially paint. Damages on the surface tear the seal system. If necessary, the gas spring can be manufactured with a scraper or a cover tube.

What are the temperature ranges where Bansbach gas springs can be used?

At surrounding temperatures of –30 °C - +80 °C.

We have special seal sets for other temperature ranges (-55 °C - +200 °C).

Does the extension force depend on the temperature?

Due to physical reasons, it changes by 3.3 % every 10°C (base +20°C)

Can a custom-made gas spring be returned?

Bansbach gas springs are mostly made of stock parts and are only produced on receipt of orders. An annulation, a change or return of the goods is therefore not possible.

In case of a delivery franco domicile, we will, of course, dispose the gas springs free of charge for you.

Are Bansbach gas springs ROHS-compliant??

Yes, they are absolutely ROHS-compliant and even fulfill all guidelines, export / import regulations and targets of other company programmes that are known to us.

How can I find my personal contact partner?

Bansbach easylift GmbH
Bararossastrasse 8
D-73547 Lorch
Phone: +49 (0) 7172/9107-0
Fax: +49 (0) 7172/9107-44
E-Mail: Esta dirección de correo electrónico está siendo protegida contra los robots de spam. Necesita tener JavaScript habilitado para poder verlo.
Internet: www.bansbach.de

You can find a local contact partner here:

What material do the gas springs consist of?

The main components of a gas spring are piston rod, cylinder, connecting parts, various turned parts, seals, oil, grease and Nitrogen. The piston rods and the cylinders are manufactured out of Steel and are CeramPro® treated or powder coated. Connecting parts and turned parts are manufactured out of lead free Aluminium or Steel.

Seals, oil and grease are free of any substances which are listed on the critical or dangerous goods list. Nitrogen is an inert gas which doesn't burn and has no health risks. Bansbach gas springs are manufactured according to current / future laws and regulations to the best of our knowledge.

For example, they are manufactured according to RoHS directive, WEEE directive and guidelines 2003/11/EC, 2002/95/EC and 2002/96/EG. They don't fall under guidelines 94/9/EG, 97/23/EG or 98/37/EG. UN 3164, TRGS 220 and UL 60601-1 also do not apply.

The verification if Bansbach gas springs in the end product meet national or international laws and guideline is the sole responsibility of the customer or user.

What are the delivery times for Bansbach products?

The following table is an indication:

 

Approx.
quantity
Normal gas springs
Simple dampers
Lockable gas springs
Traction springs
Adjustable dampers
Special types
Gas springs for aircraft
Accessories
1-9 1 week 1 week 2 weeks 2-3 days
10-99 2 weeks 2-3 weeks 3-4 weeks 1 week
100-499 2-3 weeks 3-4 weeks 4-5 weeks On request
500-1499 3-4 weeks 4-5 weeks 6-8 weeks On request
>1500 4-5 weeks 6 weeks 8-10 weeks On request

Can gas springs be used in the food industry?

Our high-quality stainless steel gas springs (AISI 316L) fulfill the highest requirements of the food industry. If required, food-safe oil (FDA-pil) is available.

What is the lifetime/number of cycles of a Bansbach gas spring?

Bansbach gas springs are developed to make in an average approx. 50.000 – 100.000 double strokes.
Depending on the specification, installation and ,several 100.000 strokes are possible.

Must Bansbach gas springs be stored with the piston rod showing downwards?

Bansbach gas springs can be stored in any position.

How much pressure can a gas spring have inside?

Depending on the size and the requested extension force, there can be a pressure inside of up to approx. 300 bar.

What does the index no. (e.g. –001/100N) at the end of the article no. mean?

This is an internal Bansbach code for a clear reproducibility of the gas spring.

Which stroke lengths are available?

Due to size and type of construction, the stroke length can be chosen from 10 – 1000 mm.

How much does a gas spring weigh?

Due to the broad product range, the weights can vary considerably.

Diametre of the piston rod / cylinder Weight
Ø3/8; Ø4/12; Ø6/15; Ø6/19; Ø6/22; Ø8/19; Ø8/22 100 g – 500 g
Ø8/28; Ø10/22; Ø10/28; Ø12/28; Ø14/28 200 g – 1000 g
Ø16/28; Ø10/40; Ø12/40; Ø14/40; Ø20/40; Ø30/70 500 g – 8000 g

Can speed or damping be influenced?

Speed and damping can be adjusted to the application by the choice of the corresponding nozzle and oil viscosity.

Can gas springs be repaired?

No, as it is a closed system under high pressure which must not be opened.

Can gas springs be disposed in domestic waste?

No, as gas springs consist mainly of metal. Please note our disposal instructions.

Which colours are available for Bansbach gas springs?

In general, the piston rod and cylinder will be delivered in black colour (standard).

White and silver cylinders are available on request. Exception: stainless steel gas springs

Can gas springs be used as a limit stop?

Yes, but the following forces must not be exceeded due to safety reasons:

Series Max. force
Ø 3-8 600N
Ø 4-12 2.000N
Ø 6-15 4.000N
Ø 6-15 stainless 2.000N
Ø 8-19; Ø 8/10 –22 und Ø 8-28 7.000N
Ø 8-19 und Ø 10-22 stainless 3.000N
Ø 10/12/14-28 10.000N
Ø 10-28 und 14-28 stainless 8.000N
Ø 14/20-40 20.000N
Ø 14/20-40 stainless 15.000N

Is there a tolerance of the total length?

The tolerance of the total length is in general ± 2,5 mm. Within a delivery lot, it is ± 1 mm

What is important for the installation of the gas spring?

The piston rod should show downwards in order to achieve the best damping characteristic of the gas spring. In general, Bansbach gas springs have an integraged grease chamber which allows an installation in any direction. The tilting of the gas spring has to be avoided.

No rigid assembly, the fixing points must have some “play”.

Does a CE-declaration exist for Bansbach gas springs?

Generally, gas springs are not liable to a CE-declaration. Gas springs are no products that fall under the machinery guideline 98/37/EG or 2006/42/EG.

With what kind of gas are gas springs filled?

Our gas springs are filled with pure nitrogen.

Which extension forces are possible?

Depending on the size and type of construction, forces can be chosen from 7 – 12.000 N.

Can the extension force of gas springs be adjusted?

Yes, it is possible if they have a valve inside.

Is there a tolerance for the extension force?

Depending on the size and extension force, the permitted tolerance is +40N –20N or ± 5-7%. Tolerances for your type of gas springs are of course available on request.

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