- AMT&C NINGBO, LLC is a professional manufacturer and supplier and exporter of Magnetic Material and Magnet System in China. Located in Ningbo China , It is one member of The AMT&C Group that a domestic recognized leader in the field of new magnetic materials and technologies.
Based on 27-year old scientific and practical experience,we produce and sell in the area of magnetism and its applications,and we have own Permanent Magnet factory. AMT&C Ningbo Ltd are manufacturer and exporter of high quality magnetic materials including Ndfeb,Smco,Alnico,Ferrite and all kinds of Magnet System(Such as : magnetic separator ,magnetic chuck .holding magnet , pot magnet ,magnetic holder , magnetic lifter , magnetic filter ,magnetic pulley, permanent magnetic separator ,etc) - Materials: Fe2O3, BaO and SrO (big block mainly made of anisotropic material, while small blocks can be made of isotropic material)
- Applications:
- Big blocks: widely used in motors, cleaning machines and medical equipments
- Small blocks: widely used in toys and decoration
- Properties:
- Y10T, Y20, Y25, Y30, Y30BH and Y35 (Chinese standard)
- C1, C5, C8 and C12 (American standard)
Special maching process needed for Ferrite magnet because it is brittle. Ferrite magnet can be made to different shapes and sizes by dry pressing then sintered, that is sintered ferrite magnet. Beside sintered ferrite magnet, bonded ferrite magnet(injection ferrite magnet) is existed. But sintered ferrite magnet are popular and widely used.
Ferrite magnet are the most commonly used permanent magnet material just because of its low cost, excellent corrosion and demagnetization resistance properties. Ferrite magnet can be made as isotropic and anisotropic. Isotropic if of the same magnetic properties in all direction, such as Grade-1. Anisotropic ferrite magnet must be magnetized in the direction of pressing.
By strength, ferrite magnet is stronger than AlNiCo magnet but weaker than neodymium magnet and SmCo (Samarium Cobalt ) magnet . Its working termperature is between from 40 degree to 250 degree. Because of these, ferrite magnet can be found in the application of separator and speaker and motor.
