Magnet manufacturer

Alnico magnets cannot be conventionally drilled or machined because they are coarse-grained, hard and brittle. These mechanical properties of alnico magnets makes them a bad choice as structural members. Instead of holes, slots are used. Cross sections of less than 3.18 mm are avoided.

Finished surfaces if the need arises, can be produced by grinding. However, the industry has found that for most applications the cast alnico magnet or sintered alnico magnet is satisfactory as it is and the cost is significantly lower.