Diameters in gas springs affect the applicable force level and mounting space.
| Parameter | Definition | Typical Value (10/22 mm) |
|---|---|---|
| F1 | 100% | 500 N |
| F2 | 95% | 475 N |
| F3 | 90% | 450 N |
| F4 | 85–88% | 430–440 N |

The operating characteristics of gas springs are defined by the following force values:
– F1 (Extension Force): The initial force when the rod is fully retracted.
– F2: The force at 50% of the stroke.
– F3: The force variation in the last 25% of the stroke.
– F4 (Final Force): The force when the rod is fully extended.
| Parameter | Definition | Typical Value (10/22 mm) |
|---|---|---|
| F1 | 100% | 500 N |
| F2 | 95% | 475 N |
| F3 | 90% | 450 N |
| F4 | 85–88% | 430–440 N |

Damping in gas springs controls movement speed, providing comfort and safety:

The K-Factor defines the force variation over the stroke: K=F1−F4F1K = \frac{F1 - F4}{F1}
| Application Type | K-Factor |
|---|---|
| Furniture | 0.10 |
| Automotive | 0.15 |
| Industrial | 0.20–0.30 |

Temperature variation affects internal pressure and force output:
| Temperature (°C) | Force Change |
|---|---|
| -10°C | -20% |
| 0°C | -10% |
| 20°C | Reference |
| 40°C | +10% |
| 60°C | +20% |

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