Magnetic filters filter undesired ferromagnetic (Fe) particles – such as iron and steel – or even weakly magnetic particles, such as processed stainless steel, from granulates, powders and fibres in liquids and powders under pressure. They are used in, e.g., the food, pharma and ceramics industries for applications such as the deferrization of pigments or paints. They are also used in the ceramics industry to ‘clean’ glazes, to prevent the formation of ‘black spots’.
The powerful Neoflux® (neodymium) magnetic bars are located in the product flow and can filter out even the smallest Fe particles – down to 30 microns. Filters with Goudsmit’s strongest neodymium magnetic bars can even capture stainless steel shavings. These extremely fine Fe and stainless steel particles are so small that they cannot even be detected with a metal detector!
Magnetic filters consist of multiple magnetic bars staggered one above the other or mounted in a static grid or inside a rotor. This ensures that the product must contact or come very close to the magnetic bars.