TOX-Powerpackages and X-KT-Systems are designed for use over many millions of cycles and will not exhibit oil leakage if used correctly. However, if oil leakage does occur on your Powerpackage, the causes could include the following:
Damaged seals: Seals in the Powerpackage can be damaged due to dirt on the piston rod and particles in the supply air. Therefore, ensure that the moving piston rod is shielded from dirt if there is a lot of dirt. Also ensure that the compressed air quality class is maintained. Similarly, high humidity can lead to corrosion on the running surfaces of the Powerpackage, and corroded running surfaces can damage seals. Therefore, high humidity in the interior of the Powerpackage must be avoided.
Incorrect speed ratio between forward and return stroke: Care must be taken to ensure that the speed ratio between the forward and return stroke of the working piston is set correctly. This must be observed in particular with high tool weights, when the return stroke speed is slowed down considerably. Large differences between forward and return stroke speed can lead to dynamic oil carryover from the hydraulic chamber to the pneumatic chamber and thus to oil leakage in the long term. For information on the speed ratio, refer to the Operating Instructions.
Insufficient pneumatic supply: An insufficient pneumatic supply, in particular due to valves and hose cross-sections that are too small, can lead to the speed ratio in the power stroke not being correct. As in the forward and return strokes, this can lead to dynamic oil carryover due to speed differences. It is therefore essential to observe the required pneumatic cross-sections for valves and connecting lines specified in the relevant data sheet. If the required pneumatic cross-sections cannot be realized, the correct speed ratio must be set by installing throttle valves. In this case, please contact TOX PRESSOTECHNIK.