Engineered Rare Earth Permanent Magnets Optimized for Automotive EPS, High-Performance Generators, and Industrial Applications.
Years of Engineering Experience
Sqm Factory Footprint
Professional Employees
Annual Magnet Output
National High-Tech Enterprise & Global Rare Earth Magnetic Leader
Founded in 1999 at the dawn of the millennium, Zhejiang Laysun Magnetics Ltd. has evolved into an international powerhouse in the R&D, fabrication, and wholesale distribution of high-performance sintered NdFeB (Neodymium Iron Boron) permanent magnets. Our premier production facility in Suining, Sichuan covers 100,000 square meters, allowing us to supply large-scale global demands seamlessly.
We leverage advanced metallurgical technology to engineer permanent magnets that increase performance efficiency, reduce mechanical wear, and power modern technological innovation. Our core operating philosophy is built upon Quality, Credibility, Technology, and Innovation, making us a go-to wholesale provider for multi-national corporations seeking custom magnetic solutions.
Precision Engineering Supporting Global Industry Electrification and Technological Innovation.
Our NdFeB permanent magnets (SH, UH, EH, AH grades) are custom-engineered for EV traction motors, electronic power steering (EPS), and battery management actuators. They deliver high thermal tolerance (up to 220°C) and resistance to demagnetization under intense operational loads.
Large-scale wind turbine generators require durable permanent magnet components. We supply NdFeB arc segments designed to minimize eddy current losses, lowering operational maintenance costs and boosting electrical conversion rates for wind farms globally.
Precise robotic joints and CNC machinery depend on reliable magnetic fields. Our sintered blocks and multi-pole bonded rings provide the magnetic stability needed for rapid acceleration and precise positioning in automated industrial lines.
Navigating the Complexities of Rare Earth Permanent Magnet Supply Chains and Market Demands.
In the modern industrial economy, Rare Earth Permanent Magnets—particularly sintered NdFeB—have become essential strategic resources. The transition toward global decarbonization, driven by the adoption of electric vehicles and renewable energy grids, has increased demand for high-grade permanent magnets. As a result, manufacturing and procurement managers must secure reliable supply chains that resist market volatility.
Developing rare earth magnets involves complex mining and refining operations. At Zhejiang Laysun Magnetics, we manage raw material sourcing risks by establishing long-term supplier relationships and maintaining a steady reserve of key elements like Neodymium (Nd), Praseodymium (Pr), Dysprosium (Dy), and Terbium (Tb). Our annual production capacity of 5,000 tons ensures that we can scale up production to meet high-volume demands while helping clients manage price fluctuations through customized bulk procurement contracts.
As industrial clients prioritize Environmental, Social, and Governance (ESG) criteria, the manufacturing of permanent magnets is shifting toward cleaner production methods. We focus on low-waste manufacturing processes and explore recycled NdFeB solutions. By recycling production-line scrap and integrating clean processing technologies, we help our partners reduce the environmental footprint of their end-user components.
Maximizing Energy Product (BH)max with Advanced Coating Protection
The performance of permanent magnets depends on their microscopic structure. Our engineering teams utilize Grain Boundary Diffusion (GBD) technology. This technique diffuses Dysprosium (Dy) or Terbium (Tb) directly into the grain boundary structure, significantly increasing the magnet's coercivity (Hcj) without sacrificing its remanence (Br). This method allows us to manufacture magnets that maintain strong magnetic performance even in high-temperature environments.
To protect Neodymium magnets from corrosion in harsh environments, we provide specialized surface treatments. Our industrial coatings include triple-layer Ni-Cu-Ni plating, black/grey epoxy coatings, spray-applied Teflon, and Parylene encapsulation. These protective barriers are tested in autoclaves and salt spray chambers to ensure durability in demanding industrial conditions.
How our Permanent Magnets are integrated across major advanced manufacturing sectors.
Custom Geometries, Magnetic Coatings, and Engineered Compounds Tailored to Client Specifications.
Headquartered in Hangzhou, China with global reach
To support high-tech industries worldwide, our logistics and technical support networks are designed for rapid response. Our business offices in Hangzhou and our production plants in Sichuan manage global trade operations, ensuring compliance with local standards and import regulations.
We adhere to strict international quality standards, maintaining certifications across multiple global compliance metrics. Our operational standards include API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and IATF 16949. Every batch of magnets is traceable, from the raw rare earth oxides to the finished magnet block or assembly, providing reliability for critical aerospace, medical, and automotive applications.
Developing the next generation of cost-effective, high-reliability magnetic technologies.
We are refining grain-refinement techniques to reduce dependence on heavy rare earths (Dysprosium and Terbium) by 30-50%. This enables cost-effective, high-coercivity magnets suitable for mainstream automotive motors.
Our upcoming production processes target Net-Shape sintered technology and additive manufacturing. This reduces raw material waste to nearly zero and allows for complex configurations that were previously unachievable with traditional pressing methods.
We are developing new composite and bonded materials designed for low loss at high operational frequencies. This supports high-RPM motor applications in aerospace and advanced robotics.
Technical answers to common inquiries from procurement managers and design engineers.
To request a quote, please submit your drawings (such as STEP, DWG, or PDF formats), specifying the required magnetic grade (e.g., N35, N52, 45SH), surface coating, magnetization direction, and quantity. Our engineering team will review your specifications and provide a competitive pricing proposal within 24 hours.
The maximum operating temperature depends on the coercivity grade of the material. Standard N-grade magnets perform up to 80°C. High-performance M-grades can reach 100°C, H-grades 120°C, SH-grades 150°C, UH-grades 180°C, EH-grades 200°C, and AH-grades up to 220°C, depending on the length-to-diameter ratio of the magnet and the magnetic circuit.
For general industrial settings, standard Ni-Cu-Ni (Nickel-Copper-Nickel) is sufficient. For high-humidity, marine, or chemical applications, we recommend Epoxy, Rubber coating, or Parylene encapsulation. Epoxies pass standard 120-hour to 240-hour salt spray tests and provide reliable electrical insulation.
Yes. With a 100,000 square meter facility and an annual output of 5,000 tons, Zhejiang Laysun Magnetics is equipped to handle large-scale OEM orders. We supply automotive suppliers, industrial motor manufacturers, and consumer electronics brands globally, managing logistics through scheduled shipments and direct supply lines.
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Laysun Magnetics
