What Is A Gas Spring

Gas spring is an industrial accessory that can support, cushion, brake, adjust height and adjust angle. It consists of the following parts: pressure cylinder, piston rod, piston, sealing guide sleeve, filling (inert gas or oil-gas mixture), cylinder control element and cylinder external control element (refers to controllable gas spring) and joints. The principle is to fill the closed pressure cylinder with inert gas or oil-gas mixture, so that the pressure in the cavity is several times or dozens of times higher than the atmospheric pressure, and the pressure difference generated by the cross-sectional area of the piston rod is smaller than the cross-sectional area of the piston to realize the movement of the piston rod. Due to the fundamental difference in principle, gas springs have significant advantages over ordinary springs: relatively slow speed, little change in dynamic force (generally within 1:1.2), easy to control.

The disadvantage is that the relative volume is not as small as the coil spring, the cost is high, and the life is relatively short. Unlike mechanical springs, gas springs have a nearly linear elastic curve. The elastic coefficient X of standard gas springs is between 1.2 and 1.4, and other parameters can be flexibly defined according to requirements and operating conditions.