What is Eddy Current Separator

An Eddy Current Separator (ECS) is a machine used to separate non-ferrous metals (like aluminum, copper, and brass) from waste streams. It's widely used in recycling facilities, scrap yards, and material recovery plants to help sort and recover valuable metals.

How It Works:

The Eddy Current Separator operates based on electromagnetic induction:

Magnetic Rotor: At the core is a rapidly spinning rotor with powerful permanent magnets arranged in a specific pattern (typically alternating poles).

Conveyor Belt: Waste material is fed onto a moving conveyor belt that passes over the rotating magnetic rotor.

Eddy Currents: As conductive (non-ferrous) metals pass through the magnetic field, they experience changing magnetic fields, which induce eddy currents (circular electric currents) in the metals.

Repulsive Force: These eddy currents generate their own magnetic fields that oppose the magnetic field of the rotor, creating a repulsive force.

Separation: The repulsive force pushes non-ferrous metals away from the rest of the material stream, allowing for physical separation.

What It Separates:

Non-Ferrous Metals:

Aluminum cans

Copper pipes

Brass fittings

Not Effective for Ferrous Metals (iron, steel), which are typically removed earlier using magnetic separators.

Applications:

Municipal recycling

Waste electrical and electronic equipment (WEEE)

Automobile shredding

Glass or plastic recycling with metal contaminants

Benefits:

Efficient metal recovery

Reduces landfill waste

Increases purity of recycling streams

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