The judging quality of gas springs

Judging the quality of a gas spring is mainly considered from the following aspects: first of all, its tightness, if the sealing is not good, oil leakage, air leakage and other phenomena will occur during use; The second is accuracy, such as the need for 500N gas spring, some manufacturers produce a force error of no more than 2N, some manufacturers' products may be far from the actual need of 500N; again is the service life, which is calculated by the number of times it can be fully retracted; Finally, the force value changes in the stroke, and the gas spring under ideal conditions should maintain the force value throughout the stroke. However, due to design and processing factors, the force value of the gas spring in the stroke inevitably changes. The amplitude of its change is an important standard to measure the quality of a gas spring, the smaller the amplitude of change, the better the quality of the gas spring, and vice versa.