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Eddy Current Separators

Eddy Current Separators

STAR TRACE Eddy Current Separators devices are an effective way of removing non-ferrous metals from other products. Application such as aluminum cans from municipal waste, aluminum flakes from shredded PET, brass and aluminum from foundry sands, and metals from shredded auto mobile scrap, other metals such as lead can also be removed.


STAR TRACE Eddy Current Separators are ready to be installed for separation. This eddy current separators utilizes a powerful Eddy Current Rotor, Conveyor Belt, two variable discharge area and support frame. The optional vibratory feeder provides a consistent flow of material to the Eddy Current Separators. The main principle is that 'an electrical charge is induced into a conductor by changes in magnetic flux cutting through it'. Moving permanent magnets passing a conductor generates the change in magnetic flux.

  • Aluminium Separators
  • Eddy Current Machine
  • Eddy Current Separation
  • Eddy Current Separator
  • Non ferrous separator
Aluminium Separators Eddy Current Machine Eddy-Current-Separation Eddy Current Separator Non ferrous separator

Eddy current separators are designed according to the principle that conductor can generate induced current in the high-frequency alternating magnetic field. A strong high-frequent magnetic alternating magnetic field generates on the surface of the sorting roller when it works, thus when conductive non-ferrous metals pass through the magnetic field, eddy current separators will be induced in the body of non-ferrous metals. The eddy current separators itself will generate the opposite direction magnetic field, non-ferrous metals (such as aluminum, copper, etc.) will leap forward along its transport direction by the performance of magnetic field repulsion so as to separate other non-metallic substances and achieve the purpose of sorting. The main distinguishing criterion is material conductivity and density ratio values; a high percentage of the value of the material is more easily to be separated than the lower material.


STAR TRACE Eddy Current Rotor uses an alternating magnetic field to produce electrical currents in conductive metal. The electrical current generates its own magnetic field around an object which opposes the magnetic field from the Eddy Current Separators. This repulsion diverts the object from the product stream. Mass, conductivity and density influence the force and distance an object will repel.

Working of Eddy Current Separators:

Eddy current separators are based on the use of a magnetic rotor with alternating polarity, spinning rapidly inside a non-metallic drum driven by a conveyor belt. As non-ferrous metals pass over the drum, the alternating magnetic field creates eddy currents in the non-ferrous metal particles repelling the material away from the conveyor. While other materials drop off at the end of the conveyor, the non-ferrous metals are propelled forward over a splitter for separation.

Eddy Current Separation System:

STAR TRACE Eddy Current Separation System encompasses all the equipment above necessary to separate non-ferrous metals and adds ferrous metal separation equipment. It is important to remove ferrous metal prior to exposure to the Eddy Current Separators. Ferrous metal is attracted and held by the strong magnetic force. The ferrous metal will heat up and could burn holes in belt and cause significant damage to the Eddy Current Rotor.

Industries using Eddy Current Separators:

  • Foundry Industries.
  • Glass Industries.
  • Timber Industries.
  • Plastic Industries.
  • Boiler Industries.
  • E-Waste Industries.
  • Aluminum Industries.
  • Electronic waste disposal (refrigerator dismantling line).
  • Separation of aluminum cans and ferrous metals.
  • Separate non-ferrous metals from the bottom ash of boiler.
  • Separate aluminum or copper block from the sections of abandoned cars.
  • Separate non-ferrous metals from the glass scrap.
  • Separate non-ferrous metals from recycled plastic doors and windows.
  • Separate non-ferrous metals from the wood.
  • Separate non-ferrous metal impurities in some production lines(such as plastic recycling production line).

The following are the benefits of Eddy Current Separators are:

  • Rich experience in design and production can ensure mature product technology, stable performance and reliable quality.
  • Mass production, mature technology, stable quality.
  • Simple structure, easy and convenient to install, operate and maintain.
  • Complete secure facilities, full functions.
  • Beautiful appearance, retainer plates and door panels are stainless steel wire drawing board, high-grade lock.
Eddy Current Separator Specification
Technical Specification
Feed Rotor Motor Belt Motor Vibration Motor Belt Width A B C D E
ECMS - 300 5.5 KW 0.4 KW 0.12KW x 2 450 1380 4000 3225 1850 1800
ECMS - 450 5.5 KW 0.75 KW 0.12KW x 2 600 1530 4000 3225 1850 1800
ECMS - 600 5.5 KW/7.5 KW 0.75 KW 0.12KW x 2 750 1680 4000 3225 1850 1800
ECMS - 750 7.5 KW 0.75 KW 0.25 KW x 2 900 1830 4000 3225 1850 1800
ECMS - 900 7.5 KW/11 KW 1.5 KW 0.4 KW x 2 1100 2030 4000 3225 1850 1800
ECMS - 1200 11 KW 1.5 KW 0.4 KW x 2 1400 2330 4000 3225 1850 1800
ECMS - 1400 12.1 KW 2 KW 0.4 KW x 2 1600 2530 4000 3225 1850 1800
Capacity Per 1000mm Feed Width (Tonnes/Hour)
Glass Cullet
-40 mm
Car Frag
-12 mm
Car Frag
12 - 30 mm
Car Frag
30 - 70 mm
Shredded Refuse
-50 mm
Shredded Refuse
50 - 150 mm
Plastic Al
-10 mm
Copper Pb
-8 mm
Copper PVC
-6 mm
Ash NF
-100 mm
Sand NF
-100 mm
20.0 5.2 12.5 20.0 18.0 20.0 0.9 0.9 2.25 21.5 20.0