Goudsmit Magnetic Systems, of Waalre in the Netherlands, has launched a new self-cleaning clean-flow magnet for use in free-fall systems in the chemical and pharmaceutical industries that can remove iron particles as small as 25 mhu and RVS dust from powders and granules.
The magnet consists of two rows of powerful Neoflux (neodymium-iron-boron) magnetic bars that have been mounted on top of each other. As a result a magnetic value of 12,400 Gauss can be achieved and the product will always hit the magnet. The system has a low height of 250mm.
Once the particles have been caught they can be released from the magnet with the touch of a button, meaning that it can be mounted in places that are difficult to access. The magnet's cleaning cycle, during which the entire set of magnets is removed from the product flow, uses a pneumatic control to blow away the magnets inside the tube, thus removing the magnetism and sending all the iron parts through a chute into a receiving container.