Magnetic particles are attracted by the drum magnet, whereas nonmagnetic particles follow their flight path determined by inertia and gravity. The attracted material is conveyed by the drum shell to the end of the magnetic field and dropped to the other side of an adjustable splitter.
The Electro Drum Magnet has stationary electromagnetic coils positioned inside a non-magnetic, commonly manganese steel shell, The shell rotates around the stationary electromagnetic coil at a speed determined by the volume of processed material.