Originally Posted by Hitman_M3
As I already suggested some posts ago, try using dampers instead of springs to provide return force.
Yeah I remember that. And have allready asked a danish firm selling this kind of "dampers".
But they dont damp anything!
It is only a kind of springs which uses gas instead of metalsprings. And they use oil to reduce the small friction (damping) to nothing.
You can check it here where I have translated the text in your link and the text from the danish firm.
Its (probably) the same kind of gassprings you refeer to as gasdampers.
Nitrider ® gas spring with ties soldiers
Shock absorbers / springs gas that have the most advanced sealing technique for longer life.
The body is coated in black and the stem surface is nitrided for durability against corrosion.
Eye Ties are welded to each end and are also in black. These gas springs are ideal for applications where space is limited.
Pull the gas springs include useful when conventional tension springs can not be used due to lack of space, power, or hiking.
Pull the gas springs contain as a lubricant a special kind of fat instead of oil.
This type of lubrication ensures that the packages mm. remain lubricated during storage and installation at any angle. Pull the gas springs are without damping.