Spring Characteristics and Force Tolerances of Gas Springs4644215

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In contrast to most other types of springs, 10mm ball stud have a integrated pretension force and a flat spring characteristic. Which means there is merely a small improvement in force between full extension and full compression.

Because the piston and piston rod are pressed into the cylinder, volume reduces and pressure increases. This causes pushing force to increase. In conventional gas-type springs, this increase is generally around 30% at full compression.


The pushing spring movement is slow and controlled. It really is dependent on the gas flow involving the piston sides being permitted to pass through channels in the piston throughout the stroke. Conventional gas springs use 'hydraulic damping', which involves a modest amount of oil slowing down the speed from the stroke immediately ahead of the spring reaches full extension. Thus giving the movement a braking character by the end position provided the piston rod is within the downward direction.


Force tolerances when charging with gas as well as other factors imply that there may be variations inside the force exerted by gas springs with similar nominal value.

The nominal values apply at 20° C, which is temperature where gas charging is completed. Remember that when the ambient temperature rises or falls, the force with the spring rises or falls according to pressure alterations in the cylinder. Usually of thumb, gas spring force increases by approximately 3.5% per 10° C temperature increase and reduces accordingly when the temperature falls.