Sintered NdFeB and Bonded NdFeB are two hot-selling powerful rare earth magnets in the industry. China Rare Earth Magnet Limited would like to share some information on the performance and price comparison of these 2 types of magnets.
The price difference of Sintered and Bonded neodymium iron boron is big. The cost of bonded permanent magnet material is much cheaper and the manufacturing process is relatively simple.
We have mastered the manufacturing technology completely. A lot of overseas enterprises can only be shut down as they are unable to compete with China's manufacturers.
Sintered neodymium magnet is anisotropic magnet produced by powder sintering. Normally, neodymium material can only be produced to a blank after sintering process. And then they can be produced into various shaped magnets after machining like wire-electrode cutting, slicing, and grinding and so on. Sintered neodymium rare earth magnet is difficult machining brittle material. The processing loss is big, the cost is high, dimensional accuracy is not good and corrosion resistance is poor. Surface treatment is needed. However, its advantage is superior magnetic performance like top grade N52 permanent magnet, N50M.
The market of Bonded NdFeB magnets started relatively late, but the market is growing rapidly. Relative to the sintered magnet, bonded magnets have obvious advantages on the dimensional precision, production cost and stability. Along with the miniaturization and micromation development of the electronic device, its application field will continue to be expanded. Steady growth in market demand and the cancelling of magnet powder patent make the imaginary space huge. Stable growth of hard drive market and the increasing penetration of automobile micro motor market and mobile phone vibration motor market guarantee the rapid demand growth of bonded neodymium magnet market. MQ magnetic powder patents expire and anisotropic bonded NdFeB magnets, etc. new technology constantly emerging establish a solid basis for the future development of bonded neodymium permanent magnets .
