Overbelt magnet systems are mailny used to separate materials on conveyor belts. For this purpose they are either suspended above the conveyor belt or inline.

The magnet system removes the ferrous particles from the passing flow of materials. After leaving the magnetic sector, these iron particles are dropped into a receptacle. At the active side the magnet is shielded by a stainless steel wearing plate. This type of separating system is often used in industry to extract ferrous parts from the material flow and avoid machinery, such as shredders, being damaged by the iron particles. Bakker Magnetics' overband magnet systems are supplied in permanent magnetic and electromagnetic versions.

PERMANENT OVERBELT MAGNET SYSTEMS

This Bakker Magnetics type of de-ironing system is provided with a powerful permanent magnet. The special "bucking pole" design for the magnetic block means the active magnetic area has the optimal area across the conveyor. Bakker overbands can separate up to more than 40% of ferrous material than any other manufacturer. On some applications the overband magnet can be suspended up to 600mm abouve the conveyor belt and still capture the ferrous parts

Standard overbelt magnet systems (up to the 320 series), are driven by a drum motor. Models from the 400 and 500 series are standard equipped with drive through a slip-on gear motor. On request the overbands from the 220 series can be supplied with a motor reductor (add "/21" to the Art. No.). The systems are provided with a tensioning device. As the drums are curved, the running of the belt is self-guided. The belt is made of synthetic rubber with valcanised idlers. The electrical connection meets the IP54 standards, or IP65 if required, standard quiped for 3x380V 50Hz. Systems with deviating power connection can be supplied as well.

Models with an extended construction are available. Here the extension of the main magnet pole is provided with a transport pole, producing a field fluctuation. This field fluctuation rotate the iron particles on the belt through which eventual material particles, clamped by the iron population, get the opportunity to return into the flow of materials. In this way a pure iron fraction is left. Models with an extended construction can be installed solely in the longitudinal direction of the conveyor belt. At the 400 and 500 series the rubber conveyor belt between the idlers is provided with an extra wear-resistant layer.