Ferrite Disc Magnets

Ferrite(ceramic) discs are not corroded easily, because the main raw material is oxide, so surface coating treatment is no longer needed.

Ferrite(ceramic) magnet discs are produced by powder metallurgy method, they have low remanence, recovery of magnetic permeability is small, compared with other permanent magnet discs, round ferrite disc magnets are hard and brittle, have high coercivity, not easy to demagnetization, and low price, is the cheapest round type permanent magnet.

Ferrite disc magnets are divided into anisotropy (allotropy) and isotropy (isotropy). The magnetic properties of isotropic sintered ferrite disc magnet have weak strength, but they can be magnetized in different directions of magnets. The common properties of isotropic disc ferrite magnets are Y8T and Y10T. The anisotropic sintered ferrite disc magnets have strong magnetic properties, but they can only be magnetized along the predetermined magnetizing direction of the magnet. Common grades of the anisotropic disc ferrite magnets are Y25, Y30, Y35, Y30BH.