SuperStrength Rare Earth Rolls

To install, belt splicing method optimizes operation.

SuperStrength Rare Earth Rolls

Eriez RE Magnetic Rolls are used as head pulleys to purify or concentrate dry meterials conveyed on belts. Available as independent units or incorporated into conveyor/separator machines.

PRINCIPLE OF OPERATION

The continued improvement of high energy rare earth permanent magnetic materials has contributed to an unprecedented acceptance by several industries of rare earth permanent magnetic separators. The evolution of these high strength permanent magnets has led to the development of high intensity separators that operate energy free.The Rare Earth Roll separator was designed to provide peak separation efficiency and is typically used when a high level of product purity is required. The roll is constructed with ERIUM3000® permanent magnetic discs alternating with thin steel pole pieces along a shaft. The steel poles are saturated with magnetic flux and produce a magnetic field in excess of 21,000 gauss.

The Rare Earth Roll is used as a head pulley, and a thin belt connects the roll to a Dynaloc, self cleaning tail pulley. The standard belting is Teflon coated, graphite filled KEVLAR with thickness of 5 and 10 mils. Accepted belting is also available for food and pharmaceutical applications. The belt conveys the feed material to the magnetic field or separation zone. When the feed enters the magnetic field, the magnetic and/or paramagnetic particles are attracted to the roll while the non-magnetic material follows the natural discharge trajectory. A splitter arrangement isused to segregate the two streams. Other components of the Rare Earth Roll separator include a vibratory feeder with a mounted hopper, stainless steel product discharges,TEFC gear motor and controls. The rare earth roll separators are available in single, double and triple stage versions with either non–magnetic or magnetic rerun.

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