Explore our top-tier industrial rare earth magnet assemblies. Designed to deliver high remanence, exceptional coercive force, and long-term magnetic stability.
Founded in 1999 at the turn of the millennium, Zhejiang Laysun Magnetics Ltd. has evolved from a visionary magnetic startup into a state-recognized, high-tech enterprise. Headquartered in Hangzhou, with a manufacturing powerhouse sprawling over 100,000 square meters in Sichuan, we represent the absolute standard in high-performance rare earth Sintered NdFeB (Neodymium Iron Boron) production.
We support critical global supply chains, supplying custom magnetic solutions to tier-1 automotive companies, motor manufacturers, automation integrators, and consumer technology brands. Our facility features a dedicated workforce of 300 engineering experts producing up to 5,000 tons of rare earth magnets annually.
Deep engineering insight into permanent magnet circuits, pole configurations, and structural optimization for extreme industrial demands.
Standard magnetic plates rely on isotropic configurations. The Laysun technical roadmap integrates advanced finite element analysis (FEA) to design anisotropic multi-pole arrays, Halbach arrangements, and high-gradient projection circuits. This projects the magnetic flux depth up to 150mm away from the plate surface, optimizing extraction rates of tramp iron from deep conveyor beds.
Standard NdFeB plates suffer significant demagnetization above 80°C. Laysun specializes in Dysprosium (Dy) and Terbium (Tb) grain boundary diffusion (GBD) technology, producing N52SH, N48UH, and N45EH grades. These plates operate reliably up to 200°C in high-vibration systems without sacrificing magnetic force, encased in fully welded hermetic SUS316 stainless steel housings.
For chemical and heavy mining environments, plate wear is the primary failure vector. We apply high-thickness, double-layered polyurethane vulcanization and specialized cross-linked epoxy coatings, alongside our robust rubber-coated NdFeB series, guaranteeing over 1,000 hours of continuous salt spray resistance (ASTM B117 standards).
From micro-motors in electronics to heavy industrial recycling separating units, discover where Laysun permanent magnets act as the critical component.
Our main manufacturing plant is strategically situated in Suining, Sichuan. This geographic positioning offers a key structural advantage: immediate proximity to China's primary rare earth mining and refining centers. This ensures a consistent, uninterruptible supply of critical heavy rare earths (Neodymium, Praseodymium, Dysprosium, and Terbium), insulating our global buyers from raw material supply bottlenecks.
Operating under an integrated Industry 4.0 framework, Laysun implements fully closed-loop vacuum induction melting (VIM), inert-gas jet milling to control particle size distributions within 3-5 microns, automated isostatic pressing in controlled atmospheres, and multi-stage vacuum sintering. Every production batch is traced using localized ERP serialization, ensuring that raw material melt records, sintering graphs, and final magnetic validation parameters are instantly auditable.
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Global buyers require strict adherence to international industrial frameworks.浙江 Laysun Magnetics Ltd. maintains active certifications including ISO 9001:2015, ISO 14001:2015, and IATF 16949 (for automotive applications). Our products comply with RoHS directives, REACH regulations, and Conflict Minerals reporting mandates.
Our quality inspection center is equipped with state-of-the-art testing machinery, including automatic hysteresisgraphs for plotting demagnetization curves, salt spray chambers, optical 3D measurement machines, and Helmholtz coils for precise magnetic flux auditing.
Get professional, engineering-backed answers to the most common queries raised by industrial procurement managers.
Standard Neodymium (NdFeB) grades operate effectively up to 80°C (176°F). However, by selecting specialized high-coercivity grades such as SH (up to 150°C), UH (up to 180°C), or EH (up to 200°C), we customize our magnetic plates to operate reliably in high-temperature applications like combustion or asphalt processing without significant demagnetization.
Each batch undergoes testing with a calibrated Gaussmeter and custom-built tensile test rigs. We generate magnetic flux density mapping across the active surface and issue a formal test report outlining the peak surface gauss and minimum breakaway force (pull-force) before shipment.
We provide a broad range of protective platings: standard triple-layer Nickel-Copper-Nickel (Ni-Cu-Ni), high-durability Epoxy, Teflon (PTFE) coating, Everlube coatings, and our specialized vulcanized rubber encapsulation. The rubber-coated NdFeB series is highly recommended for applications requiring non-scratch surfaces or operating in high-moisture environments.
Yes. We possess specialized engineering capabilities in finite element analysis (FEA) to simulate flux lines and field vectors. We can design and produce custom magnetic pole shapes, multi-pole ring configurations, and custom-cased plate circuits tailored to your mounting geometries.
Typically, custom prototype tooling takes 10 to 15 days. Mass production of sintered magnetic plates or assemblies usually spans 25 to 30 days, depending on raw material grading requirements. We optimize scheduling via our Sichuan factory's automated sintering schedules to match urgent production timelines.
Complete catalog solutions: from heavy lifting magnets to consumer-oriented magsafe ring assemblies and hook mechanisms.
Laysun Magnetics