A small quantity of oil is inserted into the spring so that in its normal rod down position, the seal is lubricated for maximum life. Other orientations are possible by the addition of an oil chamber.
A flexible locking gas spring has gas on both sides of the piston. When the force is removed the rod will return to its original position, while remaining locked, giving the characteristic flexing movement.Gas is compressible so if sufficient force is applied to the rod when it is in its locked state, either in tension or compression, the gas will compress and the rod will move a few millimetres from its locked position.
Calculate the shoulder length for a flexible locking gas spring
Shoulder Length = (stroke x multiplier) + Shoulder length constant
| Flexible 10/23 | Flexible 10/28 | |
| Shoulder length constant | 91 | 91 |
| Multiplier | 2 | 2 |
| K factor obtained (P2/P1) | 1.4 | 1.2 |
Example - Calculation of shoulder length for a flexible locking gas spring with a 28mm body and a stroke of 120mm:
Minimum shoulder Length = (120 x 2) + 91 = 331mm
| Flexible 10/23 | Flexible 10/28 | |
| Body diameter B | 23 | 28 |
| Admissible P1 force (P1 is the force 5mm from full extension) | from 150 to 1200 Newtons | from 150 to 1200 Newtons |
| Maximum force required to depress the plunger (P2 is the force 5mm from full compression) | 14% of force P2 | 14% of force P2 |
