Ferrite Magnet Disc

Application:industrial use, whiteboard magnet, earphone, handicraft, biomagnetism, etc

Ferrite magnet / Hard Ferrite magnet / Ceramic magnet were created as a cheap alternative to metallic magnets, however these are relatively weak compared to Neodymium magnet.

Pros: Ferrite magnets or Hard Ferrite or Ceramic magnets are very cheap and can operate at very high temperatures of 80-250 degrees Celsius. It has good resistance against demagnetization and corrosion, and is usually used outdoors.

Cons: Ferrite / Ceramic magnets are brittle and easy to break. It is also very heavy and low in strength.

Bottom line: Ferrite / Ceramic magnets are what you need if you don't need super strong magnets and are on a tight budget.

Production

After goods inwards inspection, the raw materials (mainly ironoxide and strontium carbonate) are weighed, blended, pre-sinteredand ground to a fine powder with crystals. For isotropic magnets.the raw material is consequently pressed. There are two pro-cedures in the production of anisotropic magnets.

Firstly, the raw material is dried and then pressed in a magnetic field (dry pressing).

Secondly, the raw material is wet pressed under the influence of a magnetic field (wet pressing); the pressing is fol-lowed by sintering, finishing and cleaning.

The surface can be machined, marked, magnetized or coated to customer requirements.