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Eddy Current Non Ferrous Metal Separators

Eddy Current Non Ferrous Metal Separator

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High Intensity [Rare Earth NdFeB], Permanent
Application Summary
e-waste WEEE, metal reclamation., Recycling, Recycling Industry, Scrap metal
Materials / Commodities
Aluminium, Copper, dross, e-waste WEEE, Scrap Metal, zorba

The MAGQUIP “EccentriSort” Eddy Current Separator is a critical piece of equipment in any modern recycling plant where non-ferrous metal such as aluminium or copper must be separated from any waste or product stream. 

The Eddy Current Separator is a non-ferrous metal separator system using an eccentrically orientated high-energy rare-earth rotor as opposed to the concentric type of rotor. This specially engineered high-speed rotor sets the performance benchmark for Eddy Current separators and has been proven technology that has been deployed in a huge range of applications. 

MAGQUIP is also able to produce a “Fines” Eddy Current Eccentric rotor for smaller more difficult to separate particles less than 5 mm in size. 

Electrically conductive particles introduced into a rapidly changing magnetic field produced by very strong Rare Earth (NdFeB) magnets have circulating electric currents induced in them – so called “Eddy Currents”.  

The rapidly changing magnetic field is enabled by the rare earth magnet rotor rotating at very high speeds of 2800-3000 rpm. These swirling electrical eddy currents produce a magnetic field in the non- ferrous conducting particles. The reaction of the two “like pole” magnetic fields, opposing one another from the rotor and the induced particle produce a repulsion force on the particles  

The repulsion force is added to the momentum from the belt travel to throw conductive particles forward from the drum. Non-conductive particles follow their normal trajectory; ferrous particles travel around the drum and fall from the belt. 

The short belt conveyor system had a belt driven by a motorised pulley. Material travelling along the belt once repelled and ejected from the rotor, is thrown into a non-ferrous metal chute with any non-conducting material continuing along its natural trajectory from the belt. 

Recover very clean and pure non-ferrous metals from granulated waste products, size range 5 to 200mm (fines version will separate less 5mm). 

Typically, it is used in the processing of: 

  • Scrap Metal and Cable Recycling 
  • Metal separation   
  • Rejects from shredder plants 
  • Glass Cullet 
  • Household refuse 
  • Can sorting 
  • E-Waste 
  • Metal slag mixtures 

Using the “EccentiSort” eccentric to rotor produce high rate of pure non-ferrous metal. 

The Magquip “Eccentric” rotor has the following advantages: 

  • High throughput and separation efficiency  
  • Simple feeding arrangement 
  • Unrestricted particle size (Fine type rotor available less 5mm particles) 
  • Easy belt change via cantilevered frame assembly  
  • Will handle relatively high amounts of ferrous metal as opposed to concentric type without particle inductive heating causing belt and rotor cover damage  


A machined high tensile carbon steel shaft onto which ‘rare earth’ Neodymium-iron-Boron permanent magnets are assembled. 


High strength 3mm thick glass fibre  


2 ply, 2mm Polyester with 0.4mm PVC wear cover 


Standard 3 phase squirrel cage induction motor, 2 pole, 3000r/min 


Motorised pulley ‘Joki’ type or similar – belt speed up to 2.5m/sec  


Robust, carbon steel section fabrication with suitable guards. 


Fabricated steel cover with bottom chute outlets and easily adjustable splitter plate diverter. 


Electrical field panel enclosure with VSD’s for rotor and belt speed adjustment, can be supplied with advanced PLC panel with HMI. 


Vibrating pan feeder with unbalanced motors or magnetic vibrator drive type