Clamping and releasing the ferromagnetic parts from the electro-permanent lifting magnet is carried out with a short current pulse that activates or deactivates the permanent magnet system. This pulse control ensures low energy consumption with minimal self-heating.

 

The workpieces are held by the built-in permanent magnet system without any additional power supply. A high-maintenance battery system, as with the use of electric magnets, is therefore not necessary. In the event of a power failure, the magnet retains its holding force - the workpieces do not fall off!

 

With the corresponding pole-reversal control units (USG) from Wagner Magnete, the electro-permanent lifting magnets can be controlled reliably and quickly. The magnetisation process is monitored each time the solenoid is switched on. This ensures optimum operational safety, even in the event of a power failure. Depending on the version, up to 16 holding force levels are available, e.g. to pick up even very thin parts individually. Several demagnetising programmes ensure fast and precise release. The pole reversal control unit can be controlled either via a PLC or via a separate control unit as well as via buttons directly on the lifting magnet.