A gas spring is a type of spring which, unlike a mechanical spring, uses nitrogen gas pressure enclosed in a cylinder which is compressed by a piston rod that provides force during the stroke length.

A gas spring is a pressure vessel because it contains high pressured nitrogen gas (N₂).

A standard gas spring consists of:

What are the benefits of using gas springs?

Gas springs have many advantages over mechanical springs:

- Higher power per required installation area

- Longer stroke in relation to total length

- Longer service life

- Less risk of damage to the tool in the event of a breakdown

- Easy to change the force by adjusting the gas pressure

- Lower force increase during the stroke length

- More mounting possibilities