Industrial grade NdFeB blocks, cylinders, rings, and coated magnetic assemblies customized for high performance.
To master the custom configuration of rare-earth magnetic solutions, we must evaluate both the atomic coordination chemistry of 3d-4f complexes and the microstructural parameters of bulk sintered Neodymium (NdFeB) magnetic materials. The magnetic configuration of multi-nucleated coordination complexes is defined by their ligand-field splitting, spin states, and exchange coupling constants ($J$). In molecular magnetism, design architectures demand precise coordination pathways to lock spin vectors in a parallel orientation, generating uniaxial magnetic anisotropy.
At Zhejiang Laysun Magnetics Ltd., we translate these microscopic spin alignments into macroeconomic industrial realities. By controlling crystal lattice phases and introducing heavy rare earth additives such as Dysprosium (Dy) and Terbium (Tb), we alter the crystal field interactions. This raises the thermal limit and preserves critical domain structures under extreme magnetizing fields. The outcome is a product lineup characterized by excellent remanence ($B_r$), high intrinsic coercivity ($H_{cj}$), and thermal stability up to 220°C.
Zhejiang Laysun Magnetics Ltd. is a national high-tech enterprise specializing in the research, production, and custom deployment of high-grade rare earth magnets.
Established at the turn of the millennium, Zhejiang Laysun Magnetics Ltd. has evolved from a local manufacturer to a globally recognized supplier of rare-earth permanent magnets. Our advanced production complex, located in Suining, Sichuan, operates automated sintering furnaces, jet mills, and precision slicing machines. We service high-demand markets including electric vehicle motors, aerospace sensors, acoustic transducers, and industrial robotics.
Our operational strategy centers around strict quality control. From raw material sorting to vacuum induction melting and strip casting, we monitor critical magnetic indicators ($H_{cb}$, $H_{cj}$, $B_r$, $(BH)_{max}$) at every step. This ensures our custom products meet our customers' specifications.
Navigating the transition to heavy-rare-earth-free configurations and sub-micron grain optimization.
Our engineering team uses advanced Grain Boundary Diffusion (GBD) technology. By vaporizing and diffusing Dysprosium (Dy) or Terbium (Tb) through the crystalline boundaries of sintered NdFeB blocks, we strengthen coercivity without reducing the magnet's remanence ($B_r$). This process reduces overall heavy rare earth use by up to 70% while improving performance at high temperatures.
We work with research universities to investigate transition metal complexes that can serve as grain boundary modifiers. Sintered magnets are susceptible to intergranular phase deterioration. Introducing customized coordination complexes prevents grain oxidation, increases mechanical toughness, and reduces magnetic decay over time.
Harsh conditions demand durable protection. Laysun's chemical engineers have developed advanced organic-inorganic hybrid coatings, high-thickness zinc/epoxy dual layers, and custom rubber overmolding options. These protective barriers maintain performance in offshore wind turbines, marine sensors, and automotive steering systems.
Our magnets are designed for diverse, demanding environments across high-tech industries.
For electric vehicles (EVs) and Electronic Power Steering (EPS), we supply premium NdFeB magnets with low weight loss, low angular deviation, and high thermal stability. These qualities ensure smooth power delivery and steering feedback across all speeds.
Our ultra-thin VCM magnets are engineered for precision focal control in mobile cameras and high-fidelity sound reproduction in premium speakers, utilizing controlled magnetic flux fields.
Servo motors and robotic joint actuators rely on high torque density. Laysun’s custom arc and block magnets provide high magnetic strength in compact profiles, enabling precise movements in smart manufacturing installations.
From thin ring magnets for magnetic smartphone accessories to components for micro-pumps and consumer gadgets, we manufacture close-tolerance parts that integrate into compact devices.
Our primary manufacturing hub is located in Suining, Sichuan. This strategic placement offers raw material security and close integration with western China's rare earth extraction and refining operations. This integration insulates Zhejiang Laysun Magnetics from upstream price volatility and mineral supply interruptions.
Our facility runs on clean energy grids and features smart production systems. Advanced control software monitors every stage of the manufacturing process, from raw alloy composition to final magnetizing. This data-driven approach maintains high precision across large production runs, ensuring consistency for high-volume orders.
Our logistics office in Hangzhou coordinates global shipping lanes, custom clearances, and multi-modal transport. This network ensures stable, on-time deliveries for automotive and electronics manufacturers worldwide.
We match our advanced rare-earth manufacturing capabilities with strict adherence to international quality and environmental standards.
Operating a global supply chain requires robust certification support. Zhejiang Laysun Magnetics maintains a comprehensive quality management program, including ISO9001:2015 for core manufacturing, ISO14001:2015 for environmental management, and occupational health systems. For heavy industrial valves and high-reliability systems, we also hold API 6D and API 607 safety certifications.
All our products are compliant with REACH and RoHS standards. We provide material declaration sheets, chemical analysis reports, and magnetic performance curves to simplify verification for engineering and compliance teams.
Explore answers to common questions about magnetic specifications, custom options, and ordering logistics.
Additional magnetic profiles engineered to meet strict technical specifications across industries.
Submit your parameters (such as dimensions, grade, coating, operating temperature, and quantities). Our team will provide an engineering assessment and custom quote within 24 hours.
Zhejiang Laysun Magnetics Ltd.
Production: Suining, Sichuan, China
Logistics & Sales: Hangzhou, Zhejiang, China
Laysun Magnetics
