Ferrite

Rare Earth Magnets Ferrite

Ferrite magnets

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Ceramic magnets

Hard Ferrite ceramic magnets were developed in the 60's and today comprise 75% of world magnetic consumption. Despite their relatively low magnetic values, they are the most popular magnet on the market due to ready availability and relatively low cost.

The raw material from which ferrite magnets are produced is Strontium Ferrite powder (mainly ScO.6Fe203) which is formed in a press while subjected to an electric field. This process allows the direction of the magnetic field to be determined during the production of the magnet.

Main qualities:

High coercivity (= high resistance of the magnet to demagnetization).
Highly stability under difficult environment conditions with no need for a coating to protect the magnet.
High resistance to oxidation.
Durability - the magnet is stable and constant.

Popular uses: automotive industry, electric motors (DC, brushless and others), magnetic separators (mainly plates), home appliances and more.

Magma specializes in the production of Hard Ferrite (anisotropic) using a wet pressing process. Cutting and grinding of the magnets is performed with an electroplated diamond grinding wheel.