The truth about IMRO Eddy current separators

Maximum recovery of recyclable materials – IMRO Maschinenbau – Europe's conveying and sorting experts

IMRO Eddy current separators combine all-important features to achieve reliable and efficient separation of non-ferrous metals:

High-tech IMRO RCSX D eccentric rotor advantages:
• 40 poles comprising the strongest magnets
• Ultra-large diameter on inductor pole drum
• The highest magnetic strength
• Frequency 1.4 kHz

Ferrous parts are not attracted to areas which do not have a magnetic field/magnetic zone.

Other manufacturers use:
• 38 or fewer poles
• Small rotors
To prevent ferrous particles from melting the belt and the drum shell, other manufacturers use concentric rotors which can include a drum shell containing a ceramic-based lining. This type of drum shell greatly reduces both magnetic strength and separation power by increasing the gap between the material flow and the magnets.

Ferrous particles are attracted to the pole drum from any position because there is no area which does not have a magnetic field/magnetic zone. As a result, this causes high wear and tear to the belt and to the drum shell.

In the IMRO eccentric rotor system, the position of the trajectory peak can be set between 0 and 20 degrees by adjusting the angle of attack of the inductor drum. This is a crucial advantage compared to concentric systems with a fixed angle of attack.

An infinitely variable pole drum position between 0 to 20 degrees optimises the separating performance of the machine significantly.

Ferrous parts are not attracted to areas where the magnetic field is not concentrated. In a concentric rotor, non-ferrous particles are attracted by the magnetic field far too early in the process, preventing optimal separation.

Here the strength of the magnetic field cannot be adjusted. This means the trajectory of the non-ferrous particles cannot be changed either. In such a system, copper wires and heavy metals cannot be separated from the material flow.

IMRO Patent: The pole drum is infinitely adjustable between 0 and 20 degrees during operation. Optionally, an electronic control device for adjusting for the IMRO magnet system, as well as the separating vertex, can also be delivered.