HMDS Wet Drum Magnetic Separator

Eddy current separators are widely used to separate non-ferrous metals (aluminium, copper, brass, etc.) from all kinds of down stream bulk material.

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Eddy current separators are widely used to separate non-ferrous metals (aluminium, copper, brass, etc.) from all kinds of down stream bulk material.

The eddy current separator is applied to a conveyor belt carrying a thin layer of mixed waste. At the end of the conveyor belt is an eddy current rotor. Non-ferrous metals are thrown forward from the belt into the bulk, while the raw materials simply fall off the belt.

For successful non-ferrous separation, a drum magnet should be installed prior to an Eddy Current Separator. Thus it could protect the eddy current separator from causing damage to the belt by ferrous metal.

Vibration feeder provides stable feeding volume and increase separation efficiency.


Eddy current separators have a conveyor belt system with a high-speed magnetic rotor at the end. The rotation speed of the magnets generates an induction field, creating a rapidly changing magnetic field. The separation is based on the principle that every electrically conductive particle located in an alternating magnetic field is temporarily magnetized.


Eccentric rotors differ in that the magnet system is of a smaller diameter and is located in an eccentric position to the outer rotor drum. The magnet system is positioned close to the surface where the conveyed feed material is leaving the rotor due to its natural trajectory. This design gives an efficient separation but leaves a ‘dead’ magnetic area at the bottom of the rotor so that any attracted ferrous falls away extending conveyor belt life


The pole system is adjustable, so that the application of force can be optimally adjusted for maximum ejection efficiency. As compared to concentric pole systems, the eccentric pole system increases the metal yield by 50%. The service life of the belt and drum shell is considerably lengthened.

The eccentric magnet rotor can be adjusted in various angles compared to the external casing. This influences the moment of discharge of the non-ferrous metals. Since the magnet rotor is placed eccentrically in respect of the external casing, the iron particles cannot become attached to the external casing where they would cause burn-in problems.


Designed with top grade rare-earth magnet material

98% recovery of aluminum cans from commingled recyclables

Permanent rare-earth magnetic technology offers high-strength and long life

Eccentric pole system Adapted magnetic pole systems available for various applications

Reasonable structure, convenient installation, easy operation and maintenance.

Working widths: 400/650/800/1000/1200/1400/1600/1800/2000/2200 mm


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