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Magnets Glossary

Any materials having different characteristics in different directions are called anisotropic materials.

Ferrite Magnets
Ferrite magnets having lower permeability with very low eddy current loss. The common ferrites are nickel-zinc, manganese-zinc and magnesium-zinc ferrite.

Ferro Magnetism
Ferromagnetic materials have atomic fields that align themselves parallel with externally applied fields creating a total magnetic field much greater than the applied field. Ferromagnetic materials have permeabilities much greater than 1.

Rare Earth Magnets
Magnets made up of rare earth elements like cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium etc.

Demagnetization is a process through which remanent induction is reduced to or near zero.

Permanent Magnets
Permanent magnets are those magnets which are not dependent on external source for their magnetic field. They are found naturally and are also manufactured artificially.

Electro Magnets
The electromagnets are those magnets in which the magnetic field is produced by the action of electric current. The magnetism vanishes as the current is put off.

Cow Magnets
Cow magnets are those magnets that are feeded to cow to remove the various ferrous contaminants and tramp iron from their stomach which they consume during grazing.

Magnetic Pulleys
Magnetic pulleys are important magnetic products which are used as head pulleys in belt conveyors for removing ferrous contaminants from material flow. The magnetic field of the pulley attracts the ferrous fines which are held to the belt until it reaches the underside.

Magnetic Rollers
Magnetic rollers are engineering device to remove the metallic contamination from the materials on the belt. They are positioned at the head of the belt conveyors.

Magnetic Chuck
Magnetic chucks are primarily designed for holding ferro-metallic work pieces. They consist of an accurately centred permanent magnet face. Fixed ferrous plates, or pole pieces, contained within a housing are brought into contact with electromagnets or permanent magnets.