Ring NdFeB Speaker Magnet

  Product Description     Sintered NdFeB Magnet/Motor Magnet     Neodymium Iron Boron (NdFeB) Magnet is the most powerful and advanced commercialized permanent magnet.     1. Material: Neodymium+ Iron+ Boron+ Other metal elemets   2. Grade: N35, N38, N40, N42, N48, N50 (M, H, SH, EH, UH,AH)   3. Shape:  Disc, Cylinder, Ring, Block, Arc, Square with hole, Segment with hole, Ball, all kinds profiled 4. Surface Treatment:Nickel, Zinc, Epoxy, Silver, Gold, Nickel-Copper-Nickel, Tin, Nickel+Epoxy, Phosphide etc… 5. Working Temperature: < 240 degree   6. Application: Motors, Sensors, Loudspeakers, Computers, and Microwave components   7. Directions of Magnetization:  Axially magnetized, Radially magnetized, and Multi-polar magnetization.   8. Tolerance: +/- 0.05mm