Function of our gas compression spring

Gas pressure springs are used to balance weight and thus work against the weight force of a cover. When a cover is opened, the manual force is thus supported by the gas spring. A gas strut is an enclosed, maintenance-free element. It consists of a pressure tube and a piston rod with piston. In addition, a seal to prevent possible loss of gas is fitted at the piston rod guide. The gas spring is filled with compressed gas – nitrogen – which provides the spring force. To cushion the end position and to lubricate the gas springs, it also contains a small quantity of hydraulic oil. The amount of oil influences the gas spring's internal pressure. This pressure is exerted on the cross-sectional area of the piston rod, which creates the extension force of the gas spring. In the unpressurised state, the piston rod is always extended. Pushing in the piston rod reduces the volume in the cylinder and the gas is compressed. This causes an increase in force (progression) for the gas spring, which depends on the diameter of the piston rod and the volume of the cylinder.

Applications of compression springs:

Gas pressure springs are used in all situations where weights need to be lifted or lowered in a controlled way without the exertion of great force. They are used to open and hold items of furniture, in automobile construction, engineering, sports, leisure and household appliances, medical technology and many other fields of industry and for private uses.
A wide range of suitable end fittings and HAHN mounting brackets is available for attaching gas struts easily.  

HAHN gas compression springs in a range of materials

For special uses in medical technology, in the chemical and food industries and in boat building, we make gas struts from high-quality stainless materials. These springs are rustproof and resistant to chemicals.