What Grade of Neodymium Magnets Are Used for Food And Plastic Industry Iron Removal?

Iron impurity pollution is a major problem that affects product purity and equipment safety in food processing and plastic production. High-performance neodymium magnets are the core permanent magnet material for industrial iron removal in these two industries.

For food and plastic iron removal scenarios, manufacturers mostly adopt N35-N52 grade sintered neodymium magnets. These magnets feature high magnetic energy product and strong suction force, which can efficiently adsorb tiny iron filings, metal debris and ferromagnetic impurities mixed in raw materials.

With excellent coercivity, these neodymium magnets are not easy to demagnetize during long-term continuous operation, adapting to normal production temperature environments. Equipped with food-grade epoxy or nickel coating, they are corrosion-resistant, safe and non-toxic, meeting industrial hygienic standards without contaminating materials.

Installed on magnetic separators and conveyor equipment, standard N35/N38 magnets suit conventional production lines, while high-grade N50/N52 magnets are preferred for fine impurity removal and high-precision production needs.