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Scope of application: water pump motor, aquatic submersible pump and various micro water pumps, automobile motor, household appliances, electronic instruments and other industries.
Hard ferrite magnet is a low cost permanent magnet composed of strontium carbonate and iron oxide. They are also known as ceramic magnets.
Ceramic magnets are very resistant to becoming demagnetized because of high coercivity & remanence after magnetization. This is an essential characteristic for any permanent magnet.
They can operate at temperatures up to 180 degrees Celsius. They also have high magnetic permeability. The maximum magnetic field B is about 0.35 T and the magnetic field strength H is about 30 to 160 kiloampere turns per meter (400 to 2000 oersteds). The density of ferrite magnets is about 5 g/cm3.
Like other material, ceramic magnets also have a variety of grades, including Ceramic 1, Ceramic 5, Ceramic 8, Y10, Y30 and Y30BH in strengths ranging from 1.05 – 3.10 MGOe. You can find more from our Ferrite Magnet Grade Page.
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 ferrite magnet for clean, non-contaminated applications, coating may be required because of rough surface of ferrite magnets may have chippings and fine powder.
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.
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 neodymium magnets.
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Main Product:
Permanent Ferrite Magnets,
Isotropic Ferrite Magnets,
Anisotropic Ferrite Magnets,
Anisotropic Ferrite Magnet Rotor,
Isotropic Multipole Magnetic Rotor,
Sintered Neodymium Magnets
