Servo Motor's Magnet is an alloy magnet that maily comprises the Neodymium,Iron and Boron Metal, The manufacturing engineering of NdFeB makes use of a process of powder metallurgy such like alloy powder being pressed in the magnetic flux and being sintered in the vacuum furnace or inert gases environment so that the magnets possibly have high coercive force,high product  energy ,high performance price ratio and favorable mechanicalness.is an alloy magnet that maily comprises the Neodymium,Iron and Boron Metal, The manufacturing engineering of NdFeB makes use of a process of powder metallurgy such like alloy powder being pressed in the magnetic flux and being sintered in the vacuum furnace or inert gases environment so that the magnets possibly have high coercive force,high product  energy ,high performance price ratio and favorable mechanicalness.