Special Solutions

Hold torque and axial forces with one single clamping head

In particular applications, it can be necessary to hold high axial forces and torque at the same time.

For pneumatic operation, our Locking Unit series KFPD meets this demand. Depending in the size, forces / torques of 12 kN / 120 Nm or 30 kN / 500 Nm can be held securely.

The “normal” SITEMA Locking Units KFH are already able to hold smaller torque. Example: 280 Nm with, at the same time, an axial holding force of 100 kN on rod diameter 56.

In case higher torque needs to be held, SITEMA’s special design series KFHD can help. With this design, it is possible to hold torque with a factor of 10 higher compared to the standard KFH unit. Example: 2800 Nm with, at the same time, an axial holding force of 100 kN on rod diameter 56.

Whether the operation is pneumatic or hydraulic, the application is limited to static holding. The KFPD and KFHD can prevent a rotation from starting, but are not suitable to brake rotating masses.