Explore our elite engineered rare earth magnet configurations, custom-built for performance-critical applications.
Over two decades of precision manufacturing expertise and pioneering material science.
Founded at the turn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has evolved from a visionary magnetic material pioneer into a national high-tech manufacturing leader. Strategically headquartered in Hangzhou with state-of-the-art production operations, we specialize in high-performance rare earth NdFeB magnets that drive modern global technology sectors.
Our expansive production hub spans 100,000 square meters in Suining, Sichuan, supporting a workforce of 300+ highly trained engineers and specialists. By combining raw materials supply security, innovative metallurgical processes, and rigorous control systems, we achieve a stable annual output capacity of over 5,000 tons of high-grade permanent magnets.
Exploring the frontiers of rare earth metallurgy, micro-miniaturization, and energy product efficiency.
Modern applications like consumer electronics, smartphone camera components (voice coil motors), and medical implants require exceptionally small magnets (thicknesses < 0.5 mm) with tight tolerances. Our factory achieves high dimensional accuracy of up to ±0.02 mm through precision diamond wire slicing and CNC milling.
Small neodymium magnets suffer demagnetization risks at elevated temperatures. Utilizing Grain Boundary Diffusion (GBD) technology with Dysprosium (Dy) or Terbium (Tb), we fabricate N52EH and N48AH grades capable of functioning reliably at 200°C without significant flux loss.
Given the susceptibility of NdFeB materials to oxidation, we provide multi-layer plating technologies including Ni-Cu-Ni, Black Epoxy, chemical vapor deposition Parylene, and specialized Everlube spray coatings to withstand up to 1000 hours of salt spray testing.
| Class Grade | Remanence (Br) | Coercivity (Hcb) | Intrinsic Coercivity (Hcj) | Max. Energy Product (BH)max | Max. Operating Temp. |
|---|---|---|---|---|---|
| N52 | 1.42 - 1.47 T | ≥ 876 kA/m | ≥ 955 kA/m | 49.5 - 52.5 MGOe | 80°C / 176°F |
| N45H | 1.32 - 1.38 T | ≥ 955 kA/m | ≥ 1353 kA/m | 43.5 - 46.5 MGOe | 120°C / 248°F |
| N40SH | 1.24 - 1.28 T | ≥ 923 kA/m | ≥ 1592 kA/m | 38.5 - 41.5 MGOe | 150°C / 302°F |
| N38UH | 1.21 - 1.25 T | ≥ 899 kA/m | ≥ 1990 kA/m | 36.5 - 39.5 MGOe | 180°C / 356°F |
| N35EH | 1.17 - 1.21 T | ≥ 876 kA/m | ≥ 2387 kA/m | 33.5 - 36.5 MGOe | 200°C / 392°F |
Empowering high-performance technology across robotics, automotive, aviation, and digital systems.
Micro neodymium magnets are central to electric power steering (EPS) motors, anti-lock braking systems (ABS), and active suspension components. Our custom arc-segment magnets offer high magnetic density to improve fuel efficiency and motor response times.
Unmanned aerial vehicles (UAVs) and collaborative robotic arms require lightweight, high-torque servo motors. Our bonded and sintered multi-pole ring magnets reduce weight while optimizing power output and minimizing cogging torque.
From Magsafe-compatible smartphone charging arrays to micro-speakers and voice coil motors (VCMs) in DSLR camera focal assemblies, our micro magnets deliver stable magnetic forces within compact configurations.
Combining mechanical automation and rigorous quality assurance protocols to guarantee batch-to-batch consistency.
Our raw material processing begins with vacuum induction melting (VIM), followed by strip casting to create optimal crystalline flakes. Next, jet milling with protective nitrogen gas ensures a narrow particle size distribution, which is key to achieving high density in the subsequent alignment pressing phase.
Our sintering furnaces operate under high vacuum and precise thermal profiles, which aligns the magnetic domains and minimizes internal structural defects. Our modern manufacturing system reduces material waste and maintains a high yield rate for large-volume production runs.
Our laboratory is outfitted with advanced measurement equipment, including demagnetization curve tracers (hysteresographs), inductively coupled plasma (ICP) spectrometers for chemical analysis, and laser particle size analyzers. This ensures the physical and chemical properties of each production batch match our customer specifications.
We are certified across international standards including ISO 9001 (Quality Management), ISO 14001 (Environmental Management), ISO 45001 (Occupational Health), and TS/IATF 16949 (Automotive Quality Systems). We also hold API 6D and API 607 certifications for industrial application compliance.
Ensuring compliance, environmental responsibility, and reliable transit for worldwide procurement teams.
All rare earth magnetic solutions manufactured by Zhejiang Laysun Magnetics strictly adhere to EU Directive 2011/65/EU (RoHS) and Regulation (EC) No 1907/2006 (REACH). We implement non-hazardous materials processing and green waste management throughout our factory lines.
We work closely with direct rare earth mining operations in Southwest China to secure a steady supply of Neodymium, Praseodymium, Dysprosium, and Terbium. This shields our partners from sudden market price fluctuations and guarantees long-term supply stability.
Every shipment is accompanied by detailed Quality Inspection Certificates, including demagnetization curves, salt spray test reports, dimension measurements, and RoHS compliance statements. We also provide full traceability back to the raw material batch level.
To support our global customers, we maintain export services through air, sea, and multimodal logistics channels. We offer customs clearance handling, specialized magnetic shielding packaging for air freight, and warehouse stocking options for contract customers.
Whether you require standard shapes or custom-engineered magnetic assemblies, our engineering team provides technical support and response times within 24 hours.
Demonstrating our commitment to quality control and operational standards across all facilities.
Answers to common questions regarding engineering specifications, coatings, and bulk purchasing of small neodymium magnets.
High-precision magnet configurations for industrial equipment, generators, and specialized electronics.
Laysun Magnetics