Recover aluminum, copper, brass, and more with Bunting\u2019s concentric and eccentric eddy current separators\u2014high-intensity, low-maintenance systems engineered for recycling, plastics, and material recovery facilities (MRFs).<\/p>\n
\u2022 Magnetic Separation
\n\u2022 Eddy Current Separators
\n\u2022 Short centered conveyor presents material to a high\u2011speed magnetic rotor housed inside a non\u2011metallic shell.
\n\u2022 Rapid polarity reversal induces eddy currents in conductive particles (Fleming\u2019s left\u2011hand rule).
\n\u2022 Magnetic repulsion throws non\u2011ferrous metals, while inert material falls naturally.
\n\u2022 Adjustable splitter isolates the two fractions for clean recovery.
\n\u2022 Throughput
\n\u2022 In concentric designs , the rotor sits centrally inside the pulley, delivering a symmetrical magnetic field. This setup offers balanced repulsion and is ideal for coarser non-ferrous metals in steady feed conditions.
\n\u2022 In eccentric designs , the rotor is offset within the pulley shell, focusing the magnetic field at a single discharge point. This improves the separation of small, lightweight, or low-conductivity particles, especially when targeting fines under 10\u202fmm.
\n\u2022 Sequenced PLC control cabinet
\n\u2022 Ceramic coating on carbon\u2011fibre rotor shell
\n\u2022 Custom chassis with primary ferrous separation (drum, pulley or overband magnet)
\n\u2022 Rotary or static belt brushes for sticky\/wet feed
\n\u2022 Laboratory\u2011scale units available for trials in Bunting\u2019s UK Recycling Test Facility
\n\u2022 High\u2011Intensity Eccentric (HIFE) – for small non\u2011ferrous metals down to\u202f1\u202fmm
\n\u2022 High\u2011Intensity Eccentric (HIE) – for small non\u2011ferrous metals down to\u202f3\u202fmm
\n\u2022 High\u2011Intensity Concentric (HIC) – for general use, non\u2011ferrous metals above\u202f10\u202fmm (16\/64″)
\n\u2022 Eco Concentric ECS (ECO) – for general household recycling, non\u2011ferrous metals above\u202f25\u202fmm (1″)
\n\u2022 Recover non\u2011ferrous metals from shredded cars, aluminium cans, WEEE, etc.
\n\u2022 Remove non\u2011ferrous contaminants from cullet, plastics, woodchip and other waste materials Applications span metal recycling , glass re\u2011melting , plastics reuse , wood processing , and waste-to-energy operations .<\/p>\n
For more than 30\u202fyears Bunting\u00ae has engineered high\u2011performance Eddy Current Separators (ECS) that repel non\u2011ferrous metals \u2014 such as aluminum, copper and zinc \u2014 from non\u2011conductive material streams. The result: higher product purity, higher metal yield and lower operating costs. Applications : Plastic Recycling, Auto Shredder Residue (ASR), Electron Waste (E-Waste Recycling, Municipal Solid Waste (MSW) & Aluminum Can Recovery, Glass Recycling, Wood and Biomass Recycling<\/p>\n
Short centered conveyor presents material to a high\u2011speed magnetic rotor housed inside a non\u2011metallic shell.<\/p>\n
Rapid polarity reversal induces eddy currents in conductive particles (Fleming\u2019s left\u2011hand rule).<\/p>\n
Magnetic repulsion throws non\u2011ferrous metals, while inert material falls naturally.<\/p>\n
Adjustable splitter isolates the two fractions for clean recovery.<\/p>\n
Super Fines \u2265\u202f1mm (e\u2011scrap, shredded battery waste)<\/p>\n
Fines \u2265\u202f3mm (e-scrap, granulated plastic)<\/p>\n
Mixed recyclables, wood, glass \u2265\u202f10\u202fmm<\/p>\n
Quick\u2011Change Belt The HIE, HIC and ECO models feature an under\u2011frame cantilever jacking system. One technician can swap the conveyor belt without removing the rotor, minimizing downtime and safeguarding rotor alignment.<\/p>\n
Bunting manufactures both eccentric and concentric rotor eddy current separators, each designed for specific material characteristics and recovery goals. The key distinction lies in the position of the magnetic rotor within the head pulley and how the magnetic field interacts with the conveyed material.<\/p>\n
In concentric designs , the rotor sits centrally inside the pulley, delivering a symmetrical magnetic field. This setup offers balanced repulsion and is ideal for coarser non-ferrous metals in steady feed conditions.<\/p>\n
In eccentric designs , the rotor is offset within the pulley shell, focusing the magnetic field at a single discharge point. This improves the separation of small, lightweight, or low-conductivity particles, especially when targeting fines under 10\u202fmm.<\/p>\n
Choosing between the two depends on your material\u2019s particle size, conductivity, throughput, and purity requirements.<\/p>\n
(Metric range followed by rounded imperial range)<\/p>\n
Ceramic coating on carbon\u2011fibre rotor shell<\/p>\n
Custom chassis with primary ferrous separation (drum, pulley or overband magnet)<\/p>\n
Rotary or static belt brushes for sticky\/wet feed<\/p>\n
Laboratory\u2011scale units available for trials in Bunting\u2019s UK Recycling Test Facility<\/p>\n
The Eddy Current Separator (ECS) uses a high\u2011speed magnetic rotor to generate repulsive magnetic forces that separate non\u2011ferrous metals (like aluminium, copper, zinc) from non\u2011conductive materials in recycling streams. It\u2019s commonly integrated with a drum magnet that first removes ferrous metals.<\/p>\n
Bunting offers four ECS models tailored for different particle sizes and applications:<\/p>\n
High\u2011Intensity Eccentric (HIE) – for small non\u2011ferrous metals down to\u202f3\u202fmm<\/p>\n
High\u2011Intensity Concentric (HIC) – for general use, non\u2011ferrous metals above\u202f10\u202fmm (16\/64″)<\/p>\n
Eco Concentric ECS (ECO) – for general household recycling, non\u2011ferrous metals above\u202f25\u202fmm (1″)<\/p>\n
An Eddy Current Separator consists of a short belt conveyor with its drive located at the return end, and a high-speed magnetic rotor system installed at the discharge end. The magnetic rotor, housed within a separately rotating non-metallic drum, operates at speeds of up to 3,000 revolutions per minute, while the outer drum cover rotates at the same speed as the Eddy Current Separator\u2019s belt conveyor.<\/p>\n
As the rotor spins at these high speeds, it produces a changing magnetic field. The strength of this field depends on the rotor’s speed and the number of magnetic poles.<\/p>\n
When a conductive metal piece passes over the rotor and through this changing magnetic field, an eddy current is induced within it. These eddy currents, in turn, create their own magnetic fields that oppose the original magnetic field (Lenz\u2019s Law). This interaction generates a repulsive force that pushes the object away from the magnetic field (Fleming\u2019s Left-Hand Rule).<\/p>\n
Inert, non-conductive materials (such as glass, plastic, etc.) simply fall off the rotor due to gravity\u2014their distance thrown is determined solely by the belt speed. In contrast, conductive metal pieces are repelled and thrown farther from the rotor.<\/p>\n
A splitter plate is positioned between these two material streams to enable separation. By adjusting the belt speed, rotor speed, and splitter plate position, the Eddy Current Separator can be configured to suit the specific characteristics of the customer\u2019s material.<\/p>\n
The HIE, HIC. and R-Type model feature a cantilever jacking system beneath the hinge frame, allowing one person to lift and hold the conveyor from one side. After drive belt removal, the main belt can be easily and quickly replaced without removing the rotor\u2014minimizing downtime and simplifying maintenance.<\/p>\n
Recover non\u2011ferrous metals from shredded cars, aluminium cans, WEEE, etc.<\/p>","protected":false},"excerpt":{"rendered":"
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