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CE 280 Magnetic Separation
Education / GUNT Hamburg / Process Engineering / Mechanical Process Engineering /

During sorting, a solid compound is separated according to its material characteristics.
  Magnetic separation is a method of sorting which utilises the magnetisability of components of a solid compound. Magnetic separators are often used in coal and ore preparation.
  In the CE 280, the solid compound to be separated is charged into the feed hopper. A vibrating trough conveys the compound onto a rotating, non-magnetic drum. Its speed can be adjusted by way of a potentiometer. In one area of the drum there is a fixed permanent magnet. Non-magnetisable components drop into a collector tank due to gravity. Magnetisable components adhere to the drum in the area of the magnet, are carried along and drop into a different tank as soon as they are beyond the magnetic zone. The mass flow of the feed material can be adjusted by way of the distance of the hopper outlet from the vibrating trough and by the throw and frequency of the trough. A mixture of sand and small steel items, such as hexagon nuts, is recommended for use as the feed material.
  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments

- learning the fundamental principle and the method

  of operation of a drum-type magnetic separator
- efficiency of separation process dependent on
  * mass flow of feed material
  * mixing ratio of feed material
  * type of feed material
  * drum rotation speed


[1] drum-type magnetic separator for separation of magnetisable components from a solid compound
[2] separation by a fixed permanent magnet in an area of a rotating, non-magnetic drum
[3] feed hopper with vibrating trough for feed of solid compound to drum
[4] dosage of feed material by way of distance of hopper outlet from vibrating trough, throw and frequency of vibrating trough
[5] drum rotation speed adjustable by electric motor with potentiometer

[6] 2 steel tanks for separated fractions and 1 tank for solid compound


Technical Data

Feed hopper capacity: 25L
Vibrating trough
- throw: 0,2...1,5mm
- vibration frequency: 50Hz or 100Hz
- diameter: 220mm
- length: 300mm
- magnetic field range: 180°
- speed: 0...30min-1
- power consumption: 0,25kW
Max. particle size
- non-magnetic: 20mm
- magnetic: 20mm
- 2x 15L

- 1x 20L


Dimensions and Weight LxWxH: 1.500x700x1.700mm
Weight: approx. 160kg

Required for Operation 230V, 50Hz, 1 phase

Scope of Delivery

1 trainer
1 set of instructional material

Order Details 083.28000  CE 280  Magnetic Separation