Spring Characteristics and Force Tolerances of Gas Springs5605289

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As opposed to almost every other type of springs, 10mm ball stud have a built-in pretension force and a flat spring characteristic. Which means there is only 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 will cause pushing force to improve. In conventional gas-type springs, this increase is generally around 30% at full compression.


The pushing spring movement is slow and controlled. It is reliant on the gas flow involving the piston sides being able to go through channels in the piston through the stroke. Conventional gas springs use 'hydraulic damping', which involves a tiny bit of oil slowing down the speed with the stroke immediately ahead of the spring reaches full extension. This provides the movement a braking character at the conclusion position provided the piston rod is in the downward direction.


Force tolerances when charging with gas along with other factors mean that there might be variations in the force exerted by gas springs with the exact same nominal value.

The nominal values apply at 20° C, which is the temperature at which gas charging is carried out. Observe that in the event the ambient temperature rises or falls, the force of the spring rises or falls according to pressure modifications in the cylinder. As a rule of thumb, gas spring force increases by approximately 3.5% per 10° C temperature increase and reduces accordingly when the temperature falls.