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Mining & Mineral Processing

Rare Earth Roll Separators (RERS)

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high gradient [Rare Earth NdFeB], high intensity, Permanent
Application Summary
concentration or upgrading of (fine/dry/granular) weakly magnetic material, Separation
Materials / Commodities
Battery Minerals, beach sands, heavy minerals, Industrial Minerals

The MAGQUIP SUPRSEP Rare Earth Roll Separator is a permanent, high-intensity roll magnet for the separation and/or upgrading of dry granular paramagnetic material in the 75 microns to 10 mm size range.

Standard range consists of various configurations including, single, double, and triple stage separators with standard diameters of 100, 150, 300 mm.

Roll magnet widths available from 500, 100, 1500 mm wide.

Material is fed from the hopper at a controlled rate onto the short belt conveyor via either a roll feeder or vibrating feeder to ensure a constant feed and monolayer of material. As the belt and material travels around the magnetic roll, magnetic particles are influenced by competing centrifugal and magnetic forces. They are thrown from the belt, at a position on the roll where the centrifugal force overcomes the magnetic forces.

Non-magnetic particles are thrown from the belt on their normal trajectory. The particles are diverted by the splitter onto the chutes or outlets. The chutes can be arranged for ‘non-magnetics’ or ‘magnetics’ retreatment.

The magnetic roll consists of a series of rare earth permanent magnet rings sandwiched between carbon steel disks with optimal thickness ratios dependant on feed material particle size.

The MAGQUIP SUPRSEP RERS will remove weakly magnetic particles from dry granular materials. Typical applications are the purification or processing of industrial minerals, heavy mineral beach sands and silica sands.

Specific minerals treated include:

Andalusite, Apatite, Bauxite, Calcite, Corundum, diamondiferous concentrates, Dolomite, Feldspar, Fireclay Iron ores, Kyanite, Limestone, Manganese ores, Magnesite, Mineral sands, Nepheline – Syenite, Quartz, Silica sand, sillimanite, Spodumene, Tantalite, wollastonite.

Typical size range of material treated from 75 microns to 10 mm.

The advantages of the MAGQUIP Rare Earth roll Separator include:

  • Various magnet & pole configurations with measurable Flux density on poles of up to 12,000 gauss
  • High temperature rare earth permanent magnet grade for elevated material temperatures
  • Unique proprietary tail roll take-up tensioning & belt tracking system
  • Fast and easy belt changes enabled through magnet & tail roll configuration
  • High capacity 300 mm diameter roll available
  • Sophisticated C & I systems with control panel enclosure featuring PLC features for advanced component control and feedback with HMI
  • Compact modular construction with easy door panel access
  • Laboratory unit available for testing and machine setting optimisation
  • De-ionising feature for static adherence feature available

Feed Hopper & Feed arrangement (star roll type or vibrating feeder)

Rare Earth magnet Roll and Idler pulley Cassette with Direct Drive geared motors

Product splitters + support frame + enclosure + chutes + outlets + dust extraction ports

Aramid Kevlar or fabric belts

Can be supplied with HMI type PLC & VSD electrical control panel.