Permanent-electro lifting magnets employ a clever technology in which permanent magnet elements are energised to do the lifting and then de-energised to release the load when the lift is complete and at rest. This means that electrical energy is required only during the brief energise and de-energise actions.
By contrast, conventional electro lifting magnets consume large amounts of energy during the entire lifting cycle, which can frequently be 15 minutes or more, and often repeated for protracted periods. The result is limited duty cycling so that over-heating does not pose a problem.
Permanent-electro lifting magnets however, run cool and do not need to be de-rated or duty-cycle rated. In addition, as the lifting is effected by permanent magnets, no cumbersome battery back-up system is required.
This modular technology can be adopted for use in a range of applications, including:
- systems using fixed or telescopic beams
- as single modules for coil or block lifting; and
- on tilting beams for extracting steel plate from vertical storage racks.