Sintered neodymium magnets has complex manufacturing process and the properties is very good comparing to the price. It is strongest magnetic material since now and is widely used in motor, high energy louderspeakers, MRI,wind generator,etc.
As sintered neodymium magnet can not work at very high temperature and is easy to be rust, it is always coated with nickel plating, epoxy,Zinc. New coating is also available like everlube, parylene,etc.
Our company is professional in sintered NdFeB magnets, we have material from N35 to N52, working temperature from 80 degree to 200 degree.
Please believe us, any of your inquiry will reach very careful review and positive feedback.