Drum magnetic separators consist mainly of two assembly parts: one stationary and one moving.
The stationary part is the inner part, consisting of the magnetic source of the separator, which can be made of electromagnet windings or permanent magnet blocks.
Two or more polarities can exist and they can be either axial or transversal.
The drum magnet’s moving part consists of an outer shell made of non-magnetic material like manganese or stainless steel and axial slats, which vary in quantity and size according to the application.
Drum magnet separators differ from pulley magnet separators in that they are only magnetically active on a portion of the outer shell circumference (typically around 200°). The magnetically active section of the shell is facing the material and attracts the ferrous, while the non-magnetic section discharges the recovered ferrous from the drum.
Drum magnets have different designs and sizes based on their different applications.