Tension Springs

Tension springs work in the opposite way to gas springs. The gas pressure in the cylinder pulls the piston rod towards the inside. The spring force F1 results from the internal pressure in the cylinder, which is generated by the filling medium nitrogen. In the tension spring, the piston ring area between the piston rod and the inside cylinder diameter is decisive. When no load is applied, the piston rod is always compressed. The tension springs of series ‘Z’ have no damping. Series ZD is available with damping.