Large ring NdFeB magnet

NdFeB magnet contains both sintered and bonded two forms. Sintered NdFeB offers the most advanced magnetic properties while the bonded NdFeB offers lower energy properties. Both of them could be made into various shapes and sizes. What is the features of the Neodymium Magnet? 1. Chemical constitution:Neodymium-Iron-Boron; Neodymium magnet is hard, brittle and is easy to rust on the surface. 2. Magnetic properties: High coercive force, the max operation temp is up to 200