Electro self-cleaning overband magnet DND-AC E

Overband magnet (or suspension magnet) sits above a conveyor carrying material. The magnetic attractive force of an electromagnetic overband is stronger at distance with a higher magnetic gradient  than a permanent design. 

Besides, when there is a deep burden of conveyed material, high magnetic forces are needed to extract the ferrous metal from underneath the non-metallic material and the electro overbands are able to cope with this task.