Explore our state-of-the-art rare earth neodymium (NdFeB) magnetic systems, engineered for maximum energy product (BH)max and temperature resilience.
Multi-pole magnetic circular arrays designed for consumer electronic interfaces and phone positioning modules.
Precision sintered block elements optimizing rotor flux density for high-speed EV drivetrains.
High-precision Magsafe-compatible magnetic ring arrays offering excellent adhesion profiles and tactile alignment.
Corrosion-resistant holding assemblies protected by robust triple-layered nickel plating.
Automotive safety-grade magnetic components for Electric Power Steering systems.
Axially magnetized cylindrical permanent elements tailored for sensor applications and micro-actuators.
Industrial-strength magnetic hooks utilizing optimized ferromagnetic housings to focus magnetic flux.
Isotropic and anisotropic bonded neodymium rings featuring radial multi-pole magnetization configurations.
In high-performance applications, a magnetic material's raw formula is only half the equation. The process of **magnetization**—the physical alignment of magnetic domains (or Weiss domains) within the material under an intense external magnetic field ($H$)—determines the ultimate capability of the device. At Zhejiang Laysun Magnetics Ltd., we deploy precise control mechanisms over the magnetic hysteresis loops to guarantee optimal values for Residual Flux Density ($B_r$), Intrinsic Coercivity ($H_{cj}$), and Maximum Energy Product ($(BH)_{max}$).
During the fabrication of sintered Neodymium-Iron-Boron (NdFeB) magnets, alignment is achieved through dynamic powder pressing in the presence of a strong aligning magnetic field. This locks the anisotropic grains in their preferred crystallographic orientation. The post-sintered components are then subjected to extreme magnetic fields, often exceeding 3 to 4 Tesla, using specialized capacitor-discharge pulse magnetizers. This ensures complete saturation magnetization, eliminating incomplete domain alignment which would otherwise trigger premature thermal demagnetization in high-stress applications such as EV traction motors and industrial wind turbine generators.
"For industrial motor and sensor operations, magnetization orientation is critical. Options include axial, radial, diametrical, and multi-pole configurations. Aligning these profiles requires precision fixture engineering to match the exact geometric and physical properties of the magnetic circuit."
Zhejiang Laysun Magnetics Ltd. specializes in complex multi-pole and radial magnetization profiles. These configurations enable high torque density and minimize cogging torque in synchronous servo motors. By utilizing state-of-the-art finite element analysis (FEA) software, our R&D team optimizes flux distribution, ensuring that our products serve critical, zero-tolerance environments safely and effectively.
Established in **1999**, Zhejiang Laysun Magnetics Ltd. has evolved from a pioneering domestic startup into a leading national high-tech enterprise. Our operations specialize in rare earth permanent magnets, addressing challenges in industrial motors, consumer electronics, and green energy applications.
Our state-of-the-art manufacturing facility, covering **100,000 square meters** in Suining, Sichuan, represents a hub of advanced materials synthesis. A workforce of over **300 skilled professionals** operates the plant, driving an annual production capacity of **5,000 tons** of high-grade rare earth magnets.
How China’s magnetization technologies influence the global industrial chain and facilitate transitions to green energy.
China commands over 85% of the global rare earth processing and permanent magnet manufacturing market. Zhejiang Laysun Magnetics Ltd. sources raw rare earth oxides directly from domestic suppliers, mitigating risk and ensuring supply chain continuity for critical applications.
The demand for energy-efficient brushless motors has elevated sintered NdFeB magnets to a critical industrial resource. Our optimized magnetization systems are vital for automotive, aerospace, and general automation sectors.
Complying with ISO 9001 and ISO 14001, we provide traceable raw material metrics, structural testing data, and demagnetization profiles, fulfilling requirements for demanding international projects.
Permanent magnet solutions customized to withstand challenging environmental conditions in key growth industries.
Strategic directions in permanent magnet design and metallurgical processing (2025-2035).
To reduce the use of expensive heavy rare earth metals (HRE) such as Dysprosium (Dy) and Terbium (Tb), Laysun Magnetics is deploying **Grain Boundary Diffusion**. By concentrating Dy or Tb specifically along the grain boundaries of NdFeB magnets, we increase intrinsic coercivity ($H_{cj}$) with minimal impact on remanence ($B_r$). This process allows Laysun to manufacture high-temperature magnets (up to 220°C) more cost-effectively.
Future research focuses on nanocrystalline structures that enhance the single-domain particle ratio within bonded magnet structures. This method targets isotropic properties, enabling more uniform flux output and multi-pole magnetization in delicate geometries.
Environmental regulations require sustainable sourcing. Laysun's research roadmap includes processing end-of-life magnetic scrap back into high-performance permanent magnets, significantly reducing the carbon footprint of rare earth manufacturing.
Headquartered in China, Zhejiang Laysun Magnetics Ltd. operates specialized subsidiaries and offices to support international customers.
Our systems comply with international standards, including CE, ISO 9001, ISO 14001, and ISO 45001. We maintain comprehensive documentation for automotive PPAP approval.
ISO 9001 Quality System Certificate
ISO 14001 Environmental Standard
OHSAS 18001 Health & Safety Compliance
Answers to common engineering queries regarding rare earth permanent magnets, performance parameters, and integration methods.
Select from our range of structural neodymium components, heavy-duty recovery systems, and customizable mounting fixtures.
High-yield neodymium stock alloys processed to balance performance and raw material cost.
Heavy-duty extraction magnets encased in protective steel casings for salvage operations.
Anisotropic arc segments designed to fit wind turbine and rotor surface configurations.
Sintered rectangular blocks offering uniform field lines for industrial separation and holding tasks.
Nickel-plated steel cups holding high-energy NdFeB discs to optimize pull forces.
High-coercivity ring configurations customized to client dimensional requirements.
Lightweight, magnetic fastening plates designed to secure corporate ID badges without damaging fabrics.
Industrial round disc magnets with options for axial or diametrical magnetization profiles.
Need advice on material grades, magnetization profiles, or high-temperature stability? Contact our engineering team for assistance.
For inquiries about our products or custom magnetic solutions, please let us know your requirements. Our technical support team will contact you within 24 hours.
Laysun Magnetics