Nickel (Ni) is a classic ferromagnetic transition metal with an intrinsic Curie temperature of 358°C. In the field of modern magnetic materials, the phrase "magnetization of nickel" refers to two interrelated engineering disciplines: the alignment of magnetic domains within pure or alloyed nickel materials, and the magnetization processes applied to rare-earth Neodymium-Iron-Boron (NdFeB) magnets protected by electroplated nickel layers (typically Ni-Cu-Ni).
Sintered NdFeB is highly susceptible to intergranular corrosion and atmospheric oxidation. Utilizing a multi-layer nickel electroplating finish solves this challenge. The nickel layers must not only provide physical protection, but they also interact with the strong magnetic flux lines during the heavy pulse magnetization phase. Achieving high coercivity while maintaining cost-effective manufacturing requires specialized knowledge of field orientation, saturation limits, and surface coating thickness control.
Zhejiang Laysun Magnetics Ltd. is an industry-leading manufacturer specializing in rare-earth NdFeB permanent magnets. Established in 1999, we have transitioned from a specialized regional enterprise into a national high-tech manufacturing leader.
Spanning over 100,000 square meters, our state-of-the-art production facility in Suining, Sichuan, produces up to 5,000 tons of rare earth magnets annually. Backed by 300 skilled professionals, we manage the entire value chain from vacuum induction melting and strip casting to hydrogen decrepitation, jet milling, magnetic-field-aligned pressing, vacuum sintering, and automatic electroplating.
Our manufacturing advantage is anchored by several factors that allow us to provide high-performance magnets at scale:
The permanent magnet market is undergoing rapid evolution driven by international regulatory requirements, electrification, and manufacturing automation. Key industry trends include:
We provide tailored magnetic solutions designed for specific operational environments:
Automotive & Electric Mobility: Our high-coercivity NdFeB arc segments are optimized for automotive Electric Power Steering (EPS) and main drive motors, offering low eddy-current losses and long-term thermal stability.
Industrial Automation & Robotics: Precision servo motors rely on our neodymium rings and blocks to deliver high torque-to-weight ratios, enabling precise movement in multi-axis robotic joints.
Consumer Electronics: From thin MagSafe-compatible ring magnets to high-flux actuators for voice coil motors (VCM), our customized geometries support modern compact designs.
Our operations comply with key international quality and management standards, including API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and IATF 16949.
We supply custom-shaped NdFeB magnets, including pots, hooks, blocks, rings, and complex segments, customized to exact engineering designs and tolerances.
With our 100,000 m² manufacturing plant and 5,000-ton annual capacity, we offer reliable volume supply for major industrial and commercial projects.
We maintain strict alignment with global engineering and environmental requirements.
Laysun Magnetics
