Alnico Magnets

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Cast Alnico 5 is the most commonly used of all the cast Alnico magnets. This material is used extensively in rotating machinery, meters, instruments, sensing devices, and holding applications, to name a few.


Alnico is hard and brittle. cannot be Machined or drilled.  therefore be accomplished by ordinary methods. Holes are usually cored in at the foundry, and magnets are cast close to final size and then finish grinded to close tolerances.


Alnico has a low coercive force, and is easily demagnetized if not handled with care. For optimum performance of Alnico 5, the magnetic length should be approximately 5 times the pole diameter or equivalent diameter. For example, a 0.250" diameter magnet should be about 1.00" long.


Because of its higher coercivity, Alnico 8 may be used in shorter lengths and in disc shapes


 Alnico magnet is our recommended product. We,SENS Magnetic Products, Inc is an Alnico magnet and SmCo permanent magnet manufacturer in Hangzhou ,China. We supply first-class permanent magnetic products.

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