Magnetic grate (SM SMA)


Magnetic grate (SM SMA)

Magnetic Grade (SM SMA)

The SM / SMA type magnetic grate (magnetic sieve) is designed for semi-automatic / automatic removal of iron contaminants from fine-grained bulk materials (granulation up to 5 mm) in free-fall systems. The magnetic grate protects process machines against damage caused by tramp metal, cleanses the final product, increasing its value, and also protects the consumer against eating dangerous metal pieces. It is a perfect complement to a metal detector.

The magnetic grate is reliable, very durable and designed for continuous operation. It has the highest metal separation efficiency. The magnetic grate enables the separation of filings, iron oxides and even some types of stainless steel. The high-power neodymium permanent magnets used in magnetic bars have high coercivity, which makes them difficult to demagnetize. Therefore, the magnetic grate has a long service life.

Performance features of the magnetic grate from Magnetix

  • Customized design of the magnetic grate.
  • Execution with approval for the food industry.
  • Separator efficiency above 99%.
  • Semi-automatic or fully automated cleaning of captured metals.
  • Simple assembly in a gravity chute.
  • Inlet max. 600×600 mm / D500 mm.
  • Neodymium or samarium-cobalt magnetic bars.
  • Flux density reaching 12 000 G on magnetic bars.
  • High coercive magnetic material.
  • Working temperature up to 300°C.

Applications areas of the magnetic grate

  • Removal of metal contaminants with the highest efficiency from sugar, salt, flour, coffee, powdered milk, spices and other bulk food products with granulation up to 5 mm.
  • Separation of metals from grain, feed and feed additives.
  • Purification of wood chips, shavings, sawdust and wood dust.
  • Purification of grit, sand and flour.
  • Purification of plastic granulates.


Magnetic grate during operation


Versions of the magnetic grate

  • Type SMP semi-automatically cleaned magnetic grate
  • Type SMA automatically cleaned magnetic grate

Magnetic grate have rods made of high-energy neodymium magnets with an operating temperature of up to 150°C or optionally samarium-cobalt magnets with an operating temperature of up to 300°C. In the semi-automatic version, it is possible to remove the magnetic cores from the protective tubes during the cleaning operation. The automated version does not require any maintenance. During cleaning, magnetic cores are blown into a special chamber using compressed air. The separator is cleaned sequentially. The subsequent rows of magnets are extended one after the other at set time intervals set using a PLC programmable relay controlling the operation of the solenoid valves.





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