Induced Roll Magnetic Separator (IMRS)

The Induced Roll Magnetic Separator (IMRS) is a proven technology widely used for upgrading non-metallic dry minerals, particularly in the ceramics and glass industries. IMRS uses electromagnetically generated high-intensity magnetic fields to continuously separate small paramagnetic particles from materials with particle sizes ranging from –2 mm down to 45 microns.

The peak magnetic field produced on the induced roll reaches 2.2 Tesla (22,000 Gauss).

IMRS offers several advantages over standard roll magnetic separators. During operation, material fed from a bunker or vibrating feeder is delivered onto the induced magnetic roll. Weakly magnetic particles are attracted to the roll by the strong magnetic field and held on the roll surface. The trajectory of non-magnetic material remains unaffected and is discharged away from the separated product. The captured magnetic material is removed from the roll at a location where the magnetic field strength is lower, typically assisted by a brush. A splitter is positioned between the two product streams to ensure clean separation.

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The Induced Roll Magnetic Separator is widely used in the industrial minerals, ceramics, and glass industries. To achieve optimum performance, capacity is determined through laboratory analysis based on mineral type, density, and particle size distribution.

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At Aksa Magnet, our recommendation is to use the IMRS after permanent magnetic separators in the process line, as this significantly improves product quality. It is especially effective for industrial minerals used in the ceramics and glass sectors—such as quartz, feldspar, and nepheline syenite.
Our facility is equipped with a full-scale industrial IMRS (2 tons/hour capacity), which is always available for customer trials.