Neodymium Ring Magnet with NiCuNi Coating are the disc magnets or cylinder magnets with centered straight hole. It's widely applied for motors assemblies, economics, like plastic mounting parts for providing constant magnetic force, due to the characteristic of permanent rare earth magnets. Such electronic magnet processes higher magnetic performance than Hard Ferrite used in electronic magnets with much smaller size.Meanwhile,this kind of neo magnet has advantage of high precision,which can improve the electronics performance. Sintered Neodymium(NdFeB) magnets are the most advanced commercialized permanent magnet materials today. The N pole is marked with red line for workers' easy assembling, no more attention to paid on the poles of magnet, which side is N, which side is S pole, as the wrong pole installing in the processing will cause the assembling components can't work. Features 1. Materials:Neodymium-Iron-Boron; 2. Grades:N33-N52, 33M-48M, 33H-48H, 30SH-45SH, 30UH-38UH and 30EH-35EH; 3. Shapes and sizes: according to customers' request; 4. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;. 5. Applications:sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on; 6. Utilizations of new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology; 7. High coercive force, the max operation temp is up to 200 degree centigrade or 380 curie temperature