Select from our precision-engineered, high-performance sintered neodymium magnets, custom-designed to streamline electric vehicle systems, industrial motors, and MagSafe components.
Years of Specialized Expertise
Sichuan Production Base
Highly Skilled Engineers & Operators
Annual Sintered NdFeB Yield
Founded in 1999, Zhejiang Laysun Magnetics Ltd. has established itself as an industry-leading national high-tech enterprise focusing on the R&D, mass manufacturing, and custom supply of high-performance rare earth permanent magnets. What began as a visionary venture at the turn of the millennium has transformed into a globally recognized benchmark in advanced powder metallurgy and high-coercivity magnetic material fabrication.
Our primary manufacturing complex, located in Suining, Sichuan, covers an expansive 100,000 square meters. Utilizing local raw material cost efficiencies, we achieve massive scale, manufacturing 5,000 tons of high-grade neodymium magnets annually. From EV propulsion systems to ultra-thin consumer electronics, we guarantee optimal structural integrity, thermal stability, and tight dimensional tolerances for challenging applications.
"Our core operational values reside in Quality, Credibility, Technology, and Innovation. By integrating raw material sourcing stability with cutting-edge sintering techniques, we deliver premium performance NdFeB solutions at highly competitive price-to-weight ratios."
How Zhejiang Laysun Magnetics meets future demands through grain boundary optimization, thermal resistance development, and sustainable sourcing.
Our processing uses Grain Boundary Diffusion (GBD) technology to inject Dysprosium (Dy) or Terbium (Tb) precisely into the magnet's crystal junctions. This increases intrinsic coercivity (Hcj) without sacrificing remanence (Br), achieving stable performance at temperatures up to 220°C while reducing dependency on heavy rare earth elements, saving material costs.
Driven by green energy initiatives, our R&D team is developing completely heavy rare-earth (HRE)-free magnets for wind turbine rotors and high-RPM traction motors. By refining alpha-iron phase structures and optimizing grain size down to the sub-micron scale, we achieve excellent resistance to demagnetization while protecting buyers from price volatility.
Partnering with domestic mineral extraction projects, Zhejiang Laysun operates closed-loop recycling services. We collect manufacturing scraps and decommissioned permanent magnets, returning them to high-grade NdFeB powders. This ensures long-term contract compliance, reduces environmental impact, and offers consistent pricing.
Delivering high-integrity magnetic materials tailored to clean-energy transport, precise automation systems, and high-efficiency home appliances.
By upgrading our Sichuan production facility with smart cyber-physical systems, Zhejiang Laysun Magnetics Ltd. provides competitive pricing for high-performance rare earth magnets. Through automation in weighing, vacuum induction melting, jet milling, and automated pressing, we achieve consistency across batch shipments.
Being close to primary mining and refining hubs in Southwest China keeps raw material transportation costs low. Combined with our 5,000-ton annual output capacity, this allows us to buffer against global raw material fluctuations, providing our partners with stable contract pricing and reliable delivery schedules.
Select from our specialized categories, each manufactured to exact tolerances for specific engineering environments.
Providing high energy density and precise alignment, our VCM magnets are optimized for dynamic hard disk drives, mobile phone camera actuators, and high-frequency speakers.
Available in radial, axial, and multi-pole magnetization orientations. Crucial for advanced robotic joints, servo motors, and absolute encoders.
Protected by nickel or multilayer epoxy coatings, these blocks provide reliable holding forces and resistance to demagnetization in industrial machinery.
Raw NdFeB structures, custom-sintered for subsequent machining or potting. Available in grades from N35 up to N55, and high-temp UH/EH variations.
Engineered for smartphone cases and automotive mounts, these magnets combine thin profiles with high pull force for secure magnetic alignment.
Sintered blocks designed for traction motors. These magnets feature low weight loss properties, high Hcj, and verified mechanical stability under G-forces.
Helping procurement managers navigate surface coatings, geometric options, and supply stability.
To resist ambient corrosion and chemical exposure, we offer customized surface coatings. These include multilayer Nickel-Copper-Nickel (Ni-Cu-Ni), organic Epoxies (Black & Grey), Parylene encapsulation, Zinc plating, and specialized passivations. Tested via salt spray testing (SST) for up to 96 hours to ensure durability in field use.
Using automated optical inspection (AOI) systems and computerized fluxmeters, we monitor physical dimensions and magnetic properties across production. We maintain flux consistency to within ±2% per batch, which helps reduce acoustic noise and vibration in motor assembly lines.
We work with our clients' engineering teams to support prototyping. Using 3D FEA magnetic modeling, we evaluate flux distribution and pull forces before manufacturing tools, helping to reduce time-to-market and minimize material waste.
At Zhejiang Laysun Magnetics Ltd., we maintain certified quality management systems to meet global compliance standards. Our processes are certified under API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and IATF 16949 (TS16949), verifying our capacity to supply the demanding automotive and industrial device manufacturing markets.
Our sales and technical support teams work out of Hangzhou, Zhejiang, and our manufacturing plants are located in Sichuan. This setup allows us to coordinate prompt shipping from major domestic ports (Ningbo/Shanghai) while maintaining local support to streamline logistics and customs clearance for our clients.
Select from our specialized line of sintered NdFeB blocks, multi-pole magnetic rings, and pot assemblies, manufactured to international engineering standards.
Engineering-oriented insights to assist you in designing, importing, and integrating NdFeB permanent magnets.
Cost-efficiency is driven by manufacturing scale, optimized yields, and strategic positioning near raw material deposits. Zhejiang Laysun manufactures in Sichuan near key mining areas, keeping raw material transport costs low. Using automated powder presses and vacuum sintering systems helps minimize material scrap, allowing us to maintain competitive pricing while meeting international performance specifications.
Standard sintered NdFeB magnets (N grades) are rated for operation up to 80°C. For higher operating temperatures, we incorporate Dysprosium (Dy) and Terbium (Tb) additions. We offer various high-temperature grades, including M (up to 100°C), H (up to 120°C), SH (up to 150°C), UH (up to 180°C), EH (up to 200°C), and AH (up to 220°C). These options are designed to maintain magnetic stability under challenging thermal conditions.
In highly corrosive conditions like marine environments, standard Ni-Cu-Ni plating may not provide sufficient protection. We recommendGrey or Black Epoxy, Everlube coatings, Teflon, or specialized plastic/rubber casings. For sensitive applications, parylene coating provides a thin, pinhole-free barrier that maintains dimensional tolerances and protects the magnet from moisture and chemical exposure.
To ensure consistency, we monitor parameters from raw material blending to the final magnetization stage. We verify coercivity, remanence, and maximum energy product (BHmax) using hysteresisgraphs on random samples from each sintering run. Our quality control processes aim to keep magnetic flux variation within ±2.0% across batches, helping to minimize cogging torque in precision electric motor applications.
Yes, we manufacture custom geometries, including arc segments, countersunk blocks, radially oriented rings, and multi-pole assemblies. The typical lead time for custom tooling and prototype sampling is 15 to 20 days. Once the samples are approved, mass production orders are generally delivered within 25 to 30 days, depending on the complexity of the design and raw material requirements.
Laysun Magnetics