Spring Characteristics and Force Tolerances of Gas Springs4800190

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As opposed to most other types of springs, strut bracket use a integrated pretension force and a flat spring characteristic. Which means that there's just a small alteration in force between full extension and full compression.

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


The pushing spring movement is slow and controlled. It's reliant on the gas flow between your piston sides being allowed to move through channels in the piston during the stroke. Conventional gas springs use 'hydraulic damping', that involves a modest amount of oil slowing down the speed from the stroke immediately before the spring reaches full extension. This gives the movement a braking character at the conclusion position provided the piston rod is incorporated in the downward direction.


Force tolerances when charging with gas and 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 done. Remember that when the ambient temperature rises or falls, the force with the spring rises or falls based on pressure modifications in the cylinder. Generally of thumb, gas spring force increases by approximately 3.5% per 10° C temperature increase and reduces accordingly once the temperature falls.