Explore our premium grade NdFeB and customizable magnetic components engineered to sustain extreme operating parameters.
Founded at the turn of the millennium, Zhejiang Laysun Magnetics Ltd. has evolved from a progressive domestic startup into an internationally recognized high-tech enterprise. Our manufacturing plant, located in Suining, Sichuan, serves as the engineering core of our operations. Leveraging over 25 years of sintering experience, our metallurgical specialists engineer and supply rare earth permanent magnet metals tailored for extreme performance.
Our commitment to quality, technology, and compliance forms the foundation of our partnership with global automotive, aerospace, and industrial component suppliers. Through deep integration of research and design (R&D) with large-scale automated pressing, we consistently supply NdFeB products that exceed global standardization parameters.
The global clean energy transition and automation boom are generating significant demand for high-grade magnetic materials.
The automotive industry depends heavily on NdFeB magnets for traction motors and Electronic Power Steering (EPS). Our high-coercivity (Hcj) grades ensure operations remain stable at temperatures exceeding 200°C.
From servo motors in CNC centers to actuator systems in aerospace, the requirement for high maximum energy product (BH)max and strict dimensional tolerance is critical. We achieve +/-0.05mm precision through advanced post-sintering slicing.
Uncoated neodymium magnets are prone to oxidation. We offer custom anti-corrosion barrier configurations, including multi-layered Nickel-Copper-Nickel (Ni-Cu-Ni), Epoxy, Zinc, and customized chemical vapor deposition (CVD) coatings.
Neodymium-Iron-Boron (NdFeB) materials undergo structural degradation when exposed to temperatures above their threshold limit. Traditionally, metallurgical engineers added heavy rare earths like Dysprosium (Dy) or Terbium (Tb) throughout the bulk alloy to prevent thermal demagnetization. However, this process significantly reduced remanence (Br) and increased material costs.
To overcome these challenges, Zhejiang Laysun Magnetics Ltd. has implemented advanced Grain Boundary Diffusion (GBD) processes. Instead of blending expensive Dy or Tb into the melt, we deposit these heavy elements onto the surface of the sintered magnet and apply a specialized heat treatment. Under controlled thermal conditions, the Dy/Tb elements diffuse along the grain boundaries, concentrating where demagnetization fields are strongest. This process allows us to increase coercivity by 2 to 10 stages without compromising the magnet's remanence.
Our manufacturing facility in Sichuan utilizes high-vacuum induction melting furnaces (VIM) and strip casting (SC) technology to create thin alloys with consistent chemical profiles. The alloy flakes are processed via jet milling in a nitrogen environment to produce single-crystal particles averaging 3 to 5 microns in size. During the magnetic alignment phase, these powder grains are oriented under a strong magnetic field and pressed into shape, ensuring uniform anisotropy and predictable magnetic properties in the finished product.
China is home to the world's most comprehensive rare earth refining and processing ecosystem. By locating our primary manufacturing hub near Sichuan's abundant mineral reserves, Zhejiang Laysun Magnetics Ltd. benefits from a highly integrated supply chain.
This proximity provides several strategic advantages:
Our rare earth neodymium magnets are engineered for reliable performance across a wide range of industries.
Micro brushless motors require high power-to-weight ratios. Our lightweight NdFeB disc and segment magnets provide the necessary power for automated warehouse robots and commercial UAVs.
High-fidelity speaker drivers, VCM camera actuators, and smartphone mounting rings require tight tolerances. We manufacture custom MagSafe-compatible ring magnets that integrate seamlessly into modern electronic devices.
Utility-scale direct-drive wind turbines require durable magnetic components. Our segmented arc magnets are designed to withstand vibration and resist demagnetization in offshore environments.
To serve demanding industries like automotive manufacturing, Zhejiang Laysun Magnetics Ltd. maintains strict adherence to international quality standards.
Every batch of magnets undergoes thorough testing, including:
Detailed technical answers addressing common procurement, manufacturing, and design queries.
Explore our secondary catalog featuring industrial-strength mounting magnets, block shapes, and application-specific components.
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Laysun Magnetics