AlNiCo Magnet is a kind of alloy consisted of aluminum, nickel cobalt and iron with varying addition of other element. There are two process for AlNiCo magnet: casting and sintering. Cast AlNiCo can be made into various shapes and sizes, whereas Sintered AlNiCo is usually restricted to samller size. Compared with Cast AlNiCo Magnet. Sintered AlNiCo Magnet has higher dimensional tolerance, lower magnetice properties and better mechanical strength. Among all the material of permanent magnet, the temperature co-efficient of Cast AlNiCo is the lowest. The working-temperature of Cast AlNiCo Magnet could reach to 600.