Unmoulded Hard Ferrite Magnet Rotor Bare Magnet Rotor

Surface Treatments
The corrosion resistance of Ceramic Magnet is excellent among all magnetic materials. They do not rust and do not require any protective plating surface treatment. Therefore, it is very easy to identify ferrite magnet by their nature charcoal gray color.

However, if you want to use Hard Ferrite Magnet for clean, non-contaminated applications, coating may be required because of rough surface of ferrite magnets may have chippings and fine powder.

Applications of Ceramic Ferrite Magnet
Due to cost effective, Ferrite magnets have a very wide range of applications, from motors and loudspeakers to toys and crafts. Besides neodymium magnets, ceramic magnets are the most widely used permanent magnets today.

Ferrite Magnet vs Neodymium Magnet
Both magnets are Permanent Magnet used on industrial and household products.


Compared to neodymium magnets:

The adhesive force of ferrite magnets is much weaker;
The cost of ceramic permanent magnets is cheaper;
The corrosion resistance of hard ceramic is excellent;
The intrinsic coercive force of ferrite is high;
Ferrite is only available in simple shapes due to manufacturing process, hard & brittle material;
The production needs diamond cutting or grinding wheel, tooling can be expensive;
If size and volume are less important than price, ferrite magnets can be a good alternative to Sintered Neodymium Magnets.