Our bonded NdFeB ring magnet is particularly suitable for high volume production of a wide variety of shapes and size ranges. Precise dimensional control is achieved in both processed and usually the component does not require further machining. The large size ring shape NdFeB Magnet features high coercivity and multipole magnetic direction. The normal OD can reach 100 mm. Injection moulded NdFeB do not normally require coating due to better corrosion resistance, however coating is recommended for compression moulded NdFeB. For more detail info, please feel free to visit our website www.e-magnet.cn or inquire us at any of your convenience.