Gas Springs
Force tolerances
Tolerances when charging with gas and other factors mean that there may be variations in the force exerted by gas springs with the same nominal F1 value. The tolerances in the table below are excessive; the actual forces are usually very close to the nominal specification.
Force tolerances (N) of a gas spring
| F1 | ≤ 100 | +/- 10 |
| 100 < F1 | ≤ 200 | +/- 20 |
| 200 < F1 | ≤ 600 | +/- 30 |
| 600 < F1 | ≤ 1 200 | +/- 50 |
| > 1 200 | +/- 100 |
The nominal F1 values apply at 20° C, which is the temperature at which gas charging is carried out. Note that if the ambient temperature rises or falls, the force of the gas spring rises or falls depending on pressure changes 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.
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