Ningbo Ketian Magnet Co., Ltd. (宁波科田磁业 / Ketian Magnet)
Company Overview
Ningbo Ketian Magnet Co., Ltd. is a sintered NdFeB magnet producer in Ningbo, Zhejiang, founded in 2001 and described by the company as a National High-tech Enterprise in China. Ningbo is one of the established Chinese centres for sintered neodymium production, with a dense supply chain for rare earth feed, sintering, grinding and plating within a short drive of each other, and a port that makes export straightforward.
The company describes its work in terms of high-grade material rather than volume commodity magnets, which in this industry usually means it specialises in the coercivity classes that require dysprosium and terbium additions rather than plain N-series parts competing on price.
Main Products
Sintered NdFeB magnets in high-temperature classes. The company's own published range runs from 56M at the top end of the energy product scale through 55H, 55SH, 54UH and 52EH up to 45AH. Read that sequence as a statement about the coercivity ladder: reaching 52EH and 45AH requires heavy rare earth additions and a process that can hold coercivity through the sinter cycle, and the grades listed climb all the way to the top of the standard class table.
Applications the company lists include electric vehicles and automotive, home appliances, industrial automation, acoustic components, medical devices and wind turbines. Those span quite different requirements — an acoustic component cares about dimensional consistency and coating, a motor cares about thermal stability and demagnetisation curves, a wind turbine cares about long-term flux stability under load — so it is worth asking which of those the production experience is deepest in before treating the list as uniform strength.
Process technology mentioned by the company includes grain boundary diffusion, which is the modern route to high coercivity with reduced heavy rare earth content. If you are buying SH or UH grades, ask specifically about the Hcj the process achieves in production, not just the grade name.
Certification
The company describes itself as a National High-tech Enterprise in China. Beyond that, request the specific management system certificates, product declarations and material composition documentation relevant to your application directly, since these are order- and grade-specific and should be verified against the company's current documentation.
Key Facts
- Founded: 2001
- Location: Ningbo, Zhejiang Province, China
- Recognition: National High-tech Enterprise (China)
- Product scope: sintered NdFeB magnets, high-grade range
- Grades referenced: 56M, 55H, 55SH, 54UH, 52EH, 45AH
- Applications: electric vehicles, automotive, home appliances, industrial automation, acoustics, medical devices, wind turbines
- Export markets: Europe, America, Asia and domestic China
- Process notes: grain boundary diffusion, lean production and intelligent manufacturing referenced by the company
Contact
For current contact details, sales addresses and technical documentation, refer to the company's official website at ktmagnet.com. Please treat the official site as the authoritative source for contact details, grade availability and current certificates, as these change over time.