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Magnets

Rare Earth Magnet Manufacturing from TyTek Industries

Rare Earth Magnets

The word rare earth pertains to a classification of certain minerals. It in no way implies that these materials are, in fact, “rare.” They are mined in different parts of the world and are relatively plentiful.

Characteristics of rare earth magnets – Rare earth magnets can store far more energy than conventional magnets, enabling parts, devices or equipment to be miniaturized in response to recent market trends. Rare earth magnets are utilized where high levels of magnetic force or energy are required. The two most used rare earth alloys are neodymium (NdFeB) and samarium cobalt (SmCo).

Additional benefits of rare earth magnets are that they reach magnetic energies well above hard ferrites and Alnico, and they permit a much smaller magnet to be used to create a like force.

The most well-known example was the application of NdFeB magnets in the starter motor for GM trucks which effectively reduced the size and weight of the starter motor by two thirds.

 

Samarium-Cobalt-Table

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