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Alnico Magnets

Alnico magnets are mainly composed of alloys of Aluminum, Nickel, and Cobalt. They are manufactured through either casting or sintering process.

Alnico offers high magnetic field

Alnico has relative high Residual Induction upto 11,000 Gauss and produce high magnetic field around it.

Alnico has a low coercive force

The Hc of Alnico drops in the range of 500 – 1,800 Oe, so that it is easily demagnetized if not handled with care. In order to get a good work point of Alnico, the ratio of length to diameter should be 5:1 or larger.

Alnico is hard and brittle

Alnico can be machined by Grinding and EDM only.

NEMC Alnico Magnets are RoHS compliant.

Please kindly find our Alnico Magnets characteristics table here

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Applications of Alnico Magnets




·Electron tubes

·Traveling wave tubes


·Holding magnets

·Coin acceptors

·Clutches and bearings









·Bell ringers

·Guitar pickups


·Security systems

·Cow magnets

Attributes of Cast Alnico

·Size parameters range from 1 ounce to about 70 pounds

·Will cast to a variety of shapes and sizes

Attributes of Sintered Alnico

·Size parameters range from about one ounce of material up to one cubic inch

·Pressed to close tolerance/minimal grinding to finish

·Mechanically strongest of Alnicos

Attributes of Both Cast and Sintered Alnico

·Very temperature stable, great for high heat applications

·Maximum working temperature 975° – 1020° F

·May be ground to size

·Does not lend itself to conventional machining (hard and brittle)

·High residual induction and energy product compared to ceramic material

·Low coercive force compared to ceramic and rare earth materials (more subject to demagnetization)

·Most common grades are 5 and 8

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