The Only Metal Sorting Resource You Will Ever Need

Are you in need of a metal sorting solution for your operation? MPI has several metal sorting systems available to meet your needs. Contact MPI with your requirements and we will direct you to your best option: roll magnet, drum separator, suspended magnet, commingled sorting, detection sorting, or a magnetic belt feeder. Here’s some information on each of these sorting options: Separation Rolls:Separation Roll

  • MPI’s Magnetic Head Pulley Separation Roll (SR) Magnets remove both large and small ferrous tramp metal contaminants from product streams in belt conveyor systems. SR-series separators provide a continuous, 24/7 automatic removal of tramp iron from the material’s flow.
  • Separation roll separators are used as head pulleys in belt sorting conveyors. As tramp metal nears the separator’s magnetic field, it is attracted and held to the conveyor’s belt until it reaches the underside of the conveyor. It then passes out of the magnetic field and discharges into a chute or bin.
  • The cleaned, contaminant-free material discharges from the top of the conveyor, away from the tramp metal.

Drum Separator:Drum Separator

  • MPI’s Magnetic Drum Separators and Housing (DSH) provide trouble-free automatic extraction of tramp iron from heavy flows of large size. And abrasive materials such as coal, aggregates, ores, sugarcane, wheat etc. When the product stream enters the drum, the powerful permanent magnetic field reaches out and retains ferrous particles on the revolving shell.
  • As the product stream flows by the shell, any non-ferrous product falls unhindered from the shell. But tramp iron particles are retained and carried away from the product stream. And out of the magnetic field, past a divider and deposited into a tramp metal collection container.
  • These DSH-Series magnets are available in standard diameters from 12” to 36” (305 to 915mm) and widths from 12” to 60” (305 to 1525mm). They are capable of providing efficient separation on volumes up to 25,600 cubic feet (725 cubic meters) per hour.

Suspended Magnets:Suspended Magnets

  • Suspended magnets remove medium to large tramp metal from conveying systems with high burden depth. We have several suspend magnet types to choose from – cross belt separator, electromagnetic cross belt separator, receiving belt magnet, or an electromagnetic receiving belt magnet. Contact us to determine the best solution for your application.

Eddy Current Separators:

  • Eddy Current SeparatorMPI’s proven eddy current sorting technology ensures higher separation rates.
  • Our state-of-the-art eddy current sorting system’s controls and features combined with technological advances result in improved nonferrous metal removal — particularly when trying to separate smaller particles such as aluminum and brass from non-conductive waste streams.
  • Eddy Current Separators (ECS) can be used wherever nonferrous metals have to be recovered or separated. Common applications include:
    • Trash and Municipal Waste Processing
    • Auto Shredding
    • Beverage Can Sorting
    • Glass and Foundry Sand Recovery
    • Window Recycling
    • Plastic Recycling
    • Scrap Wood Recycling

Commingled Sorting System:Commingled Sorting System

  • MPI’s Patented Commingled Sorting System is designed to achieve industry-leading separation rates on highly commingled materials where ferrous metal has to be reclaimed.
  • Common applications include tire recycling, municipal solid waste, crushed batteries, and brake pad compounds.
  • For increased magnetic separation, including some grades and types of stainless steel, a magnetic head pulley using MPI’s Arch Technology can be installed at the discharge of the non-ferrous conveyor.

Detection Sorting:Detection Sorting

  • Detection sorting involves separating metals from a product stream using conductivity. It relies on metal’s ability to alter an electromagnetic wave to alert the system that it needs to be separated and recovered.
  • MPI’s Detection Sorting System features a high sensitivity metal detector mounted under a belt that senses fine metal particles (down to 0.5mm diameter metals) over belt widths ranging from 24” to 96”.
  • The total detection zone is divided into multiple segmented single zones, with each sensor zone sized to meet the sensitivity level required for the application.
  • Each segment has its own reject mechanism to remove only a small portion of material from the belt for reprocessing.
  • Under the conveyor belt, a metal detector produces electromagnetic waves. Product flows on the belt over the detector.
  • When metal in the product passes over and alters the waves, a computer processes the signal, pinpoints the contaminate location and alerts the reject to expel only that “contaminated” section of the product from the product stream.

Magnetic Belt Feeder:Magnetic Belt Feeder

  • Magnetic Belt Feeders (MBF) trap ferrous materials that would otherwise contaminate final products.
  • The Magnetic Belt Feeder provides maximum elimination of metal contaminants. It consists of a belted conveyor with an integrated magnetic head pulley.
  • As product reaches the end of the feeder’s conveyor, it passes through a magnetic field.
  • Gravity causes clean, non-ferrous materials to exit and fall away from the MBF system.
  • Ferrous metals are carried around the head pulley and are transported away from the magnetic field where they fall from the conveyor belt typically into a metal collections area

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