Explore our industrial-grade, custom-engineered sintered neodymium block, pot, ring, and custom magnet designs.
Zhejiang Laysun Magnetics Ltd. is an industry-leading national high-tech enterprise dedicated to the design, engineering, and manufacturing of premium sintered Neodymium (NdFeB) permanent magnets. Founded in 1999, we have established our core operational hubs in Suining, Sichuan and Hangzhou, Zhejiang, positioning our brand at the absolute forefront of industrial magnetic technologies.
Our advanced production lines specialize in supplying magnets with exceptional coercivity, high remanence, and excellent thermal stability. We serve critical industries, including electric vehicle propulsion systems, advanced industrial automation, high-performance wind power generators, medical imaging, and consumer electronics.
How modern engineering disciplines integrate Sintered Neodymium (NdFeB) magnetic systems to solve real-world performance bottlenecks.
Electric Power Steering (EPS) motors demand exceptionally stable, low-cogging-torque NdFeB magnets. Our sintered NdFeB magnets feature high thermal resistance (grades SH, UH, EH) to maintain magnetic flux density without thermal degradation inside hot engine compartments.
From linear vibrators in smartphones to voice coil actuators in camera focus modules, our ultra-thin, highly oriented NdFeB rings and segments provide the maximum flux velocity required for sub-millisecond reaction speeds.
For industrial steel handling, shipyards, and mold factories, our NdFeB magnets power high-capacity lifters (up to 1,000kg load capacities) with a 3.5x safety rating, requiring zero external electrical power.
As the demand for energy-efficient electric vehicles and eco-friendly technologies surges, Zhejiang Laysun Magnetics Ltd. continues to innovate in core metallurgical processes.
Integrating Terbium (Tb) and Dysprosium (Dy) directly into grain boundaries reduces consumption of heavy rare earths by up to 70% while improving operating temp limits (up to 240°C).
Advancing the manufacturing boundaries to achieve higher (BH)max and Remanence (Br) values in ultra-stable ranges, optimizing performance for next-gen EV motors.
Continuous research into ultra-thin multi-layer coatings (such as Everlube, specialized Epoxies, and NiCuNi-electroplating) to prevent structural oxidation in marine environments.
Quality: Rigorous raw material vetting and multi-stage automated optical inspection systems guarantee batch-to-batch repeatability.
Credibility: Supporting aerospace, defense, and healthcare suppliers with transparent, traceable supply chains for over 2 decades.
Innovation: A dedicated, in-house metallurgical R&D lab working closely with domestic universities to pioneer magnetic advancements.
Empowering global partners with raw material control, geographical logistical benefits, and scale-driven price advantages.
Due to our proximity to key extraction and processing hubs in Western China, Laysun Magnetics secures priority access to PrNd (Praseodymium-Neodymium), Dysprosium, and Terbium. This shields our clients from volatile global pricing trends.
Operating a 100,000 square meter advanced facility, we manufacture 5,000 tons of high-performance rare earth magnets annually. This high-capacity output handles both large-scale OEM orders and quick-turn customized prototypes.
Headquartered in Hangzhou and operating global regional supply channels, we leverage multi-modal shipping infrastructure. This guarantees rapid container departures via Shanghai or Ningbo ports, minimizing oceanic and aerial transit times.
We provide a reliable, long-term technical partnership focused on engineering support and certified quality management.
As an accredited high-tech enterprise, Laysun utilizes automated vacuum melting, hydrogen decrepitation systems, jet milling with nitrogen shielding, and precision machining lines. We keep dimensional tolerances within +/-0.02mm, ensuring consistent mechanical assembly fits.
We maintain zero-defect standards at every stage of production. From raw alloy chemical composition checks to physical geometry inspections and HAST/salt-spray tests, our quality control ensures exceptional performance in harsh environments.
* We maintain compliance with API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and TS (IATF 16949). Contact our representatives to request official documentation.
Providing specialized magnetics support to critical advanced manufacturing and energy-efficient sectors.
We supply diverse geometries and coating solutions engineered to meet demanding structural constraints.
Clear, direct, and authoritative answers to technical questions about sintered neodymium magnet sourcing and performance.
Sintered NdFeB magnets are manufactured through powder metallurgy under vacuum, resulting in higher magnetic properties (with energy products from 30 to 55 MGOe) and fully anisotropic orientation. In contrast, bonded NdFeB magnets combine isotropic magnetic powder with polymer binders, yielding lower energy values (5 to 15 MGOe) but allowing for more complex geometries directly from the mold without finishing work.
Instead of blending expensive heavy rare earths (like Dysprosium or Terbium) into the initial alloy melting phase, Grain Boundary Diffusion applies these elements to the sintered magnet's outer surface, heat-treating it to diffuse them along grain boundaries. This places the high-coercivity elements exactly where demagnetization begins, saving up to 70% of heavy rare earths while maintaining high thermal stability.
For highly corrosive or marine environments, we recommend double-layer Epoxy coatings or specialized vapor-deposited coatings like Everlube. For standard industrial use, multi-layer Nickel-Copper-Nickel electroplating (Ni-Cu-Ni) offers excellent protection and cost efficiency.
By using modern multi-axis diamond grinding machines and wire EDM cutters, our factory achieves tolerances of ±0.05mm on standard orders, and down to ±0.02mm for high-precision components, ensuring trouble-free motor and structural assembly.
Our quality control utilizes automatic demagnetization curve testers, atomic absorption spectrometers, and automated optical geometry sorting. We track each batch back to its raw material melt, ensuring consistent magnetic field output for automated assembly processes.
Complete your sourcing requirements with our high-grade Neodymium pin, Magsafe, and custom industrial-grade assemblies.
Looking for reliable, cost-effective magnet solutions? Contact our engineering team for customized design suggestions, material evaluation, and competitive bulk pricing.
Our technical engineering team responds to all inquiries within 24 business hours.
Laysun Magnetics