Explore our high-performance NdFeB permanent magnets optimized for automotive, consumer electronics, and severe industrial environments.
Founded at the turn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has evolved into an elite national high-tech manufacturing leader specializing in rare earth NdFeB permanent magnetic materials. Over the last two decades, our research and production pipelines have matured to support highly customized solutions for global OEM/ODM contracts.
Our expansive, state-of-the-art facility spans over 100,000 square meters in Suining, Sichuan. Integrating state-of-the-art vacuum induction melting (VIM), jet milling, and automated pressing systems, our highly trained workforce of 300+ professionals outputs over 5,000 tons of high-performance rare earth magnets annually.
An in-depth whitepaper analysis on the metallurgy, grain structure, and coercivity metrics of high-performance Neodymium-Iron-Boron magnets.
Neodymium-Iron-Boron (NdFeB) magnets are characterized by the tetragonal crystalline phase $Nd_2Fe_{14}B$. This specific crystal structure exhibits extremely high uniaxial magnetocrystalline anisotropy ($H_A \sim 7$ T), enabling the material to possess unparalleled magnetic energy products, often reaching $(BH)_{max}$ ranges of 35 to 55 MGOe. As a premier Chinese manufacturer, Zhejiang Laysun Magnetics Ltd. utilizes advanced strip casting techniques to obtain uniform flakes, suppressing the formation of free alpha-iron, which degrades long-term stability and magnetic performance.
To reduce dependence on heavy rare earths (HRE) such as Dysprosium (Dy) and Terbium (Tb) while maintaining robust resistance to thermal demagnetization, our facilities utilize state-of-the-art Grain Boundary Diffusion (GBD) processing. GBD targets the enrichment of Dy/Tb directly along the Nd-rich grain boundary phase instead of uniformly alloying the entire crystal grain. This strategy maintains high remanence ($B_r$) while dramatically raising the intrinsic coercivity ($H_{cj}$), enabling magnets to operate continuously at high temperatures without structural performance loss.
| Class Group | Magnetic Grade | Remanence Br (kG) | Coercivity Hcj (kOe) | Max Working Temp (°C) |
|---|---|---|---|---|
| Standard High-Remanence | N35 - N55 | 11.7 - 14.8 | ≥ 12.0 | 80 |
| Medium Temp Resistant | N35M - N52M | 11.7 - 14.3 | ≥ 14.0 | 100 |
| High Temp Resistant | N33H - N50H | 11.3 - 14.1 | ≥ 17.0 | 120 |
| Super High Temp Resistant | N30SH - N48SH | 10.8 - 13.9 | ≥ 20.0 | 150 |
| Ultra High Temp Resistant | N28UH - N45UH | 10.4 - 13.6 | ≥ 25.0 | 180 |
| Extreme Temp Resistant | N28EH - N42EH | 10.4 - 13.2 | ≥ 30.0 | 200 |
Zhejiang Laysun Magnetics customizes NdFeB geometries to sub-micron tolerances for complex electrical and acoustic architectures.
Tailored for precise actuators, optical drives, and high-frequency positioning systems requiring exceptional dynamic response.
Radial and diametrical alignment patterns optimized for brushless motors and high-torque rotary encoders.
Triple-layer plated (Ni-Cu-Ni) blocks featuring tight dimensional control for heavy industrial linear actuators.
Bulk raw stock materials processed with advanced orientation presses to guarantee homogeneous magnetic field distribution.
Ultra-thin ring configurations engineered specifically for smartphone accessories and modern wireless charging devices.
Customized for traction motors, exhibiting high coercivity and stability against severe mechanical vibrations.
Flat disc designs with custom thickness profiles optimized for miniature sensors, switches, and relays.
Precision cylinder structures designed for flow meters, physical sensors, and precision linear positioning gears.
Highly specialized automotive EPS (Electric Power Steering) motor components with strict zero-defect parameters.
High magnetic output density block geometries suitable for general heavy machinery and magnetic separators.
Custom radius arc segments for high-efficiency wind turbine rotors, alternators, and multi-megawatt generators.
Mass-manufactured magnetic rings for consumer hardware, offering consistent thickness down to ±0.05 mm.
Why Tier-1 industrial buyers rely on Zhejiang Laysun Magnetics Ltd. for high-volume contract manufacturing.
Rigorous magnetic flux, Hysteresis graphing, dimensional profiling, and salt-spray analysis across our vertically integrated manufacturing steps.
Supplying leading EV makers and robotic firms in North America, Western Europe, and Southeast Asia under rigid NDA agreements.
Custom high-temp coatings (Epoxy, Rubber, Gold, Zinc, Parylene) designed to counter hydrogen embrittlement and galvanic corrosion.
Neodymium (NdFeB) materials drive modern automation. Discover how we serve primary growth sectors globally.
Headquartered in the high-tech logistics hub of Hangzhou, Zhejiang, and featuring a massive modern production campus in Suining, Sichuan, Zhejiang Laysun Magnetics Ltd. provides swift export operations across all major global shipping corridors.
Our strategically positioned distribution centers and partner networks throughout North America, Europe, and East Asia ensure robust shipping timelines, continuous buffer stock protection, and seamless door-to-door customs clearing services.
We maintain certified compliance with international industrial and quality standards to guarantee exceptional product reliability.
Our quality assurance framework holds validations for ISO 9001, ISO 14001, IATF 16949, and CE. For specialized valving and pressure components, we support compliance processes conforming to API 6D, API 607, and TS regulations.
Get answers to common engineering questions from our senior technical consulting team.
Premium grade holding structures, lifting magnets, and segment arrays optimized for dynamic commercial deployments.
Need custom geometric cuts, specific coatings, or large-scale contract pricing? Send our engineering desk your technical parameters and dimensional requirements today.
Our engineering leads will evaluate your specs and get back to you with detailed estimates and physical feasibility reports within 24 business hours.
Laysun Magnetics