Ferrite magnets are the least expensive magnetic material and are very corrosion-resistant, so no coating is required. They are made of BaO or SrO and Fe2O3 by ceramic processing technology. They are widely used in loudspeakers, motors, electronic car motors, home fitness equipment, and other industry areas.
The products appear in disks, blocks, rings, segments, etc. Ferrite magnets can be created to be anisotropic or isotropic, and the maximum application temperature is 225 °C. It offers a great balance between strength and affordability, it can be magnetized with multiple poles and it also doesn’t easily demagnetize.