Roller Magnetic Separator

The rare earth roll separator fitted with extra strong magnetic rollers serves to a continuous and automatic separation even if the particles are very small and slightly magnetic (e.g. magnetic stainless steel or also some sorts of paramagnetic minerals).

This extraordinarily powerful HIMS consists either of a vibratory feeder and from several pairs of rollers being placed above each other. One roller of this pair is always a driving one – magnetic (we offer it also in the version with a rotational speed control according to the character of cleaned material and exigencies of working) and the other non-magnetic is a driven one. These roller pairs are mutually connected to each other with a very thin, but extremely sturdy conveyor belt.

After loosening the material by means of a vibratory feede, the material falls down on the belt of the multi-stage roller, during which time metallic impurities are caught up with magnetic field of the roller and brought behind its axis to the discharging area. The purified material (i.e. non-magnetic particles) will fall off by the instrumentality of gravitation on another conveyor belt situated under it. Here the separation process will be repeated in the same way (the position of the flow distributor for a magnetic and non-magnetic material is angularly and axially adjustable). The magnetic field of the dry high intensity rare earth roll magnetic separator reaches the height of maximally c. 10 mm, and therefore it is recommended not to exceed the height material transported on the belt more than 10 mm (we recommend the height of 5 mm to achieve the highest efficiency).

The vibratory feeder with an integrated filling hopper is the inseparable part of this high intensity separator. The dimensions of the filling hopper accurately correspond with the conveyor belt width. By means of the vibration regulator,  it is possible to preset an optimum material dosing on the conveyor belt. The high intensity magnetic separator is also fitted with intelligent sensors, ensuring the safety and smoothness of the operation. When opening any inspection port during the running, the immediate machine shutdown is performed.

The safe height of the material level in the separator will be checked with a filling sensor (to prevent separator’s clogging by already separated impurities in case of a blockage or filling the discharge opening with already separated metal particles). The high gradient magnetic separator VMSV is equipped with a device for simple setting of the optimum conveyor belt tensioning. In addition, each motor of the drive roller is provided with a variable speed unit, thus it is possible to adjust its motion according to an immediate need at each belt separately.