Engineered for high-purity mineral processing, magnetic grids, voice coil motors, and mechanical lifters. Click below to view specifications and request quotes.
The imperative for high-gradient magnetic separation systems in clean energy, heavy minerals, food safety, and mechanical engineering.
High-performance rare earth magnetic materials represent the foundational architecture of modern automation, resource processing, and environmental separation techniques. With the transition to low-carbon industries, the requirement for robust magnetic materials—principally Neodymium-Iron-Boron (NdFeB)—has entered an era of exponential demand. Industrial plants, lithium-ion battery refineries, pharmaceutical complexes, and automated manufacturing lines rely on precise magnetic field gradients to isolate iron impurities, extract vital non-ferrous metals, and control dynamic actuators.
Magnetic separation materials are no longer basic commodity goods; they are highly customized, thermal-resistant components with strict geometrical tolerances. High coercivity, strong remanence, and excellent anti-corrosive coatings are mandatory parameters to withstand acidic, abrasive, and extreme thermal conditions. Zhejiang Laysun Magnetics Ltd. addresses this vital market by producing custom-engineered NdFeB blocks, rings, discs, and pot assemblies configured specifically for high-capacity separation grids and heavy-duty motor components.
Founded at the turn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has evolved from an engineering pioneer into a national high-tech enterprise. Our flagship manufacturing complex, spanning 100,000 square meters in Suining, Sichuan, houses advanced raw material processing, sintering kilns, wire-cutting matrices, and clean-room coating lines.
Supported by our headquarters and global liaison hub in Hangzhou, China, Laysun designs, manufactures, and supplies high-performance NdFeB magnets that drive the automotive, robotics, and extraction industries. Our annual capacity of 5,000 tons ensures that we remain a primary supply-chain anchor for multinational partners seeking high-volume OEM magnetic products.
Our historical manufacturing facility & mechanical storage yard.
Strategic core values: Quality, Credibility, Technology, and Innovation.
Pioneering high-coercivity, low-weight, and thermal-stable NdFeB grades for next-generation separation technologies.
Implementing Dysprosium (Dy) and Terbium (Tb) diffusion profiles to reduce reliance on heavy rare earths while maximizing the thermal operating limit (up to 220°C). Perfect for magnets operating in severe friction zones or hot slurry circuits.
Industrial separation filters often process highly abrasive wet mixtures. We specialize in Multi-layer Nickel-Copper-Nickel (Ni-Cu-Ni), Epoxy resin, Everlube, and custom passivation matrices to prevent moisture ingress and mechanical degradation.
Using Finite Element Method (FEM) software, we simulate complex magnetic field distribution in block, ring, and arc segments. This ensures optimized pull force parameters, preventing field leakage and maximizing separation capture rates.
How industries customize Laysun magnetic solutions to overcome operational constraints and achieve extreme purity targets.
Precision automation demands rapid acceleration and feedback loops. Laysun’s custom sintered blocks and rings power high-torque servo motors, enabling smooth industrial robotic joint manipulation and micro-positioning.
Automotive EPS (Electronic Power Steering) and permanent magnet traction motors must endure high vibration. We construct OEM-certified NdFeB arc segments that maintain constant flux profiles under thermal stresses up to 180°C.
Miniaturized smart devices utilize extremely small permanent rings and MagSafe-compatible magnets. We control mechanical dimensions to ±0.05 mm, ensuring seamless assembly inside phone casings and automated accessories.
In high-volume agricultural operations, bulk grains are passed over magnetic grid separators containing high-energy Neodymium rods to filter out nails, staples, and metallic rust flakes. In the mining industry, heavy wet separation drums extract iron ore from tailing slurries. Both settings demand magnets that do not undergo rapid oxidation or mechanical shearing. Laysun’s hermetically sealed, heavy-gauge NdFeB block magnets provide the robust magnetic force required to guarantee safety and compliance in these harsh settings.
Why sourcing from Zhejiang Laysun Magnetics ensures stable costs, security of raw materials, and high-precision outputs.
China represents over 70% of the world’s rare-earth mining and processing infrastructure. Sited with strategic manufacturing assets in Suining, Sichuan—a zone highly connected to clean hydroelectric power grid systems and critical mineral resources—Zhejiang Laysun Magnetics maintains a secure, uninterrupted raw material supply line.
By integrating advanced sintering, wire slicing, surface plating, and final inspection inside our single 100,000-square-meter facility, we eliminate middleman shipping layers. This vertically integrated manufacturing model shields our global clients from volatile market shifts and provides predictable bulk pricing profiles.
Inside our CNC machining bay: Wire-cutting rare earth magnets to micro tolerances.
Maintaining international standards to ensure effortless import processes, site integration, and system safety.
Validating our strict quality management system at every processing stage.
Adhering to strict eco-friendly chemical treatment protocols and emission limits.
Ensuring RoHS, REACH, and Conflict Minerals declarations match requirements.
To support our industrial partners, Laysun Magnetics provides complete localization packages. From our central hub in Hangzhou, China, our specialized technical team interfaces with engineers worldwide to resolve complex design requests. Whether you require magnetic simulation profiles, custom packaging setups for air freight to bypass customs interference, or certified testing parameters, we deliver within 24 hours.
Addressing core technical questions from design engineers, procurement specialists, and operations managers.
The deciding factor is the operating temperature. While an N52-grade magnet offers the highest energy product (BH max) at room temperature, it experiences rapid thermal demagnetization above 80°C. For industrial magnetic separators, oil-cooled motors, and generators operating at higher temperatures, UH, EH, or AH grades are used. These grades feature higher intrinsic coercivity (Hcj) to resist demagnetization under continuous high-heat stresses (up to 220°C).
Sintered NdFeB is inherently porous and susceptible to oxidation. A triple-layer plating of Nickel-Copper-Nickel provides superior hermetic sealing. The intermediate copper layer offers ductibility to absorb mechanical shocks, while the inner and outer nickel layers resist rust and chemicals. For high-humidity or acid-wash zones (such as food processing lines), Laysun also supplies custom Teflon, epoxy, or rubber-coated options to prevent direct contact with liquids.
Every batch of raw materials processed in our Suining factory undergoes systematic testing. We verify that our rare earth compounds contain no banned chemical trace levels. All production sheets, including material declarations, SGS laboratory test sheets, and ISO certificates, are archived and available for export audits.
Yes. Beyond supplying raw magnet materials, we manufacture complete functional components. This includes permanent magnetic lifters rated up to 1000KG capacity and custom-engineered steel-jacketed pot magnets (Styles A, B, and C) which maximize magnetic force concentration while protecting the inner NdFeB magnet from impact damage.
Premium specialty profiles, ring components, and high-adhesion pot configurations. Review the product list below.
Partner with Zhejiang Laysun Magnetics Ltd. to secure your magnetic separation material supply chain. Input your email below, and our engineering team will follow up within 24 hours with custom design options, lead times, and structural quotes.
Laysun Magnetics