Gas Springs Applications

Recommendations for lay-out design:

Standard Gas springs should be installed with the rod pointing downwards. Please contact us for other mounting lay-outs: horizontal position, rod pointing upwards etc.... Gas springs are designed to bear axial loads only. Consequently any side load forces should be avoided, specifically when Gas springs are equiped with eyelet end fittings, special attention should be paid to design of connecting shafts in order to provide appropriated clearance (according to each application).

As an indication only, we would advise: 0.3 to 0.5 mm clearance on shaft diameters and 0.5 to 1.0 mm clearance on each side of the eyelet. The rod should be protected from particle blastings. Where possible, Gas springs should not be used at their maximum rating. Please contact us when Gas Springs are required to be working in a corrosive environment or outside with the rod in extented position. For that purpose we have Stainless steel 316 Gas springs (See page stainless steel Gas springs)

Handling recommendation:

Maintaining the original surface finish of he rod is a key condition to provide the required good seal tightness, and endurance.

Make sure to avoid pollution of the rod surface by glue, putty, adhesives, corrosive products, paint, etc ...

When the cylinder has to be repainted, be careful to protect the rod, solvents should not be used to clean the rod in order to avoid damaging the seal.

Protect the rod from blows, shocks, sparks from electric arc or grinding machines ect ...

Never grip the rod with pliers or in a vice without using efficient protective lead, aluminium or copper jaws.

Be careful of heating effect on Infrared devices (maximum allowed temperature 80°C.)

Storage before use:

Gas springs may be stored horizontally, with approx.+ 20°C ambient temperature for 3 months. For longer storage periods, units should be stored vertically with rod pointing downward. For hot climates and/or high humidity, please contact us.

Warranty:

Gas Springs are guaranteed for one year from the date/ref code on the cylinder tube, this code may not be removed. When dates are removed, warranty is lost.

When the cylinder has to be repainted, the original date/ref. code should still appear for the warranty to remain valid.

Warranty will be cancelled when our instructions are not followed.

Without detailed specifications supplied to us at enquiry stage and our specific written agreement, our Gas Springs will not be guaranteed for special application involving vibration, magnetic fields, stray currents or intense accidental loads...etc.

This list is not limited and we draw our customers attention to the importance of suppling us with accurate and complete specifications (loads, position, working conditions...) at enquiry stage in order to select/offer the right Gas Spring type for each application.

Scrapping:

For safety reasons please apply the following procedure:

Gas Springs inner pressure ranges from 10 to 250 bars. Consequently Gas Springs should be depressurized before scrapping. Loosely clamp the cylinder in a vice.

Slit the cylinder crosswise in an area located between 35 and 40 mm from the cylinder end (fitting side). For this operation wear safety glasses and use a metal cutting hand saw. During cutting, cover the saw blade with a rag. Stop sawing as soon as a hissing sound is heard. The Gas spring is completely degassed when the rod can be hand moved freely.

Environmental protection:

The self-contained gas ( Nitrogen) is a neutral component of the atmosphere, consequently gas release is totally safe. The other Gas Spring components, except the oil, are mainly steels/aluminium/bronze, so recycling of these components is similar to steel recycling. To avoid pollution, used oil should be collected according to specific industrial waste regulations of each country.