The global transition toward electrification, automation, and green energy has thrust rare earth permanent magnets, particularly Sintered Neodymium-Iron-Boron (NdFeB), to the forefront of critical industrial material supplies. As the bedrock of high-efficiency electric vehicle (EV) traction motors, offshore wind turbines, advanced industrial robotics, and consumer electronic voice coil actuators, these magnetic assemblies command intense global interest regarding sourcing security, custom engineering, and transparent pricing strategies.
Zhejiang Laysun Magnetics Ltd. represents a critical supply pillar in this dynamic market. Operating since 1999, we have established a resilient raw material supply integration model, optimizing rare-earth resource utilization directly at our advanced manufacturing complexes. In a market historically characterized by volatile price fluctuations of PrNd (Praseodymium-Neodymium) metal, Dysprosium (Dy), and Terbium (Tb), Laysun Magnetics ensures commercial predictability. Through strategic long-term reserves and technological innovations like Grain Boundary Diffusion (GBD), we deliver superior energy density products (up to N55 and 35AH grades) with stabilized global quotes.
We mitigate regulatory and export risks by streamlining our logistics framework from China's premier rare-earth reserves, securing direct pass-through pricing stability for our global enterprise buyers.
Advanced GBD technology allows our engineers to concentrate heavy rare earths (Dy, Tb) exclusively at the grain boundaries, decreasing dependency on expensive minerals while increasing thermal performance.
By leveraging computerized raw material index alignment, we supply highly transparent, real-time pricing structures and long-term supply contracts to global OEM purchasing organizations.
Industrial applications require magnets configured to exact physical tolerances and thermal parameters. Zhejiang Laysun Magnetics maintains strict control over the metallurgical purity of our alloy blends. We offer a deep spectrum of sintered NdFeB grades, designed to withstand operating environments ranging from sub-zero space arrays to 240°C internal automotive combustion and power generation assemblies.
| Magnet Grade Series | Remanence (Br) | Coercivity (Hcb) | Intrinsic Coercivity (Hcj) | Max. Energy Product (BH)max | Max. Operating Temp. |
|---|---|---|---|---|---|
| N35 - N55 (Standard) | 1.17 - 1.49 Tesla | ≥ 828 kA/m | ≥ 955 kA/m | 33 - 54 MGOe | 80 °C |
| 35M - 52M (Medium) | 1.17 - 1.45 Tesla | ≥ 883 kA/m | ≥ 1114 kA/m | 33 - 51 MGOe | 100 °C |
| 35H - 52H (High) | 1.17 - 1.45 Tesla | ≥ 923 kA/m | ≥ 1353 kA/m | 33 - 51 MGOe | 120 °C |
| 33SH - 50SH (Super High) | 1.14 - 1.43 Tesla | ≥ 947 kA/m | ≥ 1592 kA/m | 31 - 49 MGOe | 150 °C |
| 30UH - 42UH (Ultra High) | 1.08 - 1.33 Tesla | ≥ 820 kA/m | ≥ 1990 kA/m | 28 - 41 MGOe | 180 °C |
| 28EH - 38EH (Extremely High) | 1.04 - 1.25 Tesla | ≥ 796 kA/m | ≥ 2388 kA/m | 26 - 37 MGOe | 200 °C |
| 28AH - 35AH (Active High) | 1.02 - 1.21 Tesla | ≥ 772 kA/m | ≥ 2786 kA/m | 25 - 34 MGOe | 220 - 240 °C |
In addition to strict magnetic rating configurations, our advanced anti-corrosion plating technology extends the operational life of magnet arrays within highly corrosive operating mediums. Custom surface finishes include Ni-Cu-Ni (multi-layer nickel), Passivation, Zinc (trivalent blue-white or yellow chrome), Black/Grey Epoxy, Teflon (PTFE) coatings, and Parylene encapsulation.
Our engineering services bridge the gap between design concepts and large-scale manufacturing realities. By integrating advanced magnetic finite element analysis (FEA), we customize magnetic architectures for specific commercial sectors:
1. Automotive Electrification (EV Propulsion and EPS): Electric Power Steering (EPS) and traction motors require high intrinsic coercivity (SH, UH, EH series) to prevent demagnetization under high current surges and intense engine heat. Laysun’s automotive-grade block and segment NdFeB magnets conform to stringent TS16949 standards, delivering functional reliability under cyclic heat and vibration.
2. Industrial Automation & Direct-Drive Wind Turbines: Heavy-duty arc segments and large blocks operate within industrial wind generators and robotic servo motors. These systems require consistent magnetic field distribution and low weight-to-power ratios. By using advanced geometry control, we manufacture arc and wedge-shaped profiles with uniform flux direction, maximizing wind-to-electricity conversion efficiency.
3. Advanced Consumer Electronics (MagSafe and Audio Actuators): From micro-rings for smartphone docking arrays to precision voice coil motor (VCM) magnets in optical camera stabilizers, Laysun provides ultra-thin magnets (down to 0.5 mm) with tight tolerances (±0.01 mm) and durable coatings.
Founded at the turn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has evolved from a targeted startup into a national high-tech manufacturing leader in rare earth permanent magnets. Our primary manufacturing facility spans 100,000 square meters in Suining, Sichuan, providing integrated raw material processing, metallurgical alloying, pressing, sintering, machining, and surface treatment.
Our core strengths center on Quality, Credibility, Technology, and Innovation. Supported by an elite R&D team, we hold critical certifications, including ISO9001:2015, ISO14001, ISO45001, IATF16949, and compliance standards such as RoHS, REACH, and CE. With our annual production capacity of 5,000 tons of rare earth magnets, we supply high-performance magnetic assemblies to OEMs, Tier-1 system integrators, and industrial distributors across North America, Europe, and Asia.
As the demand for energy-efficient electrification grows, Zhejiang Laysun Magnetics maintains a forward-looking R&D roadmap. Our primary development initiatives focus on resolving three key challenges in the rare earth magnet industry:
1. Heavy-Rare-Earth-Free (HRE-Free) Metallurgy: Traditional high-temperature NdFeB magnets require substantial additions of Dysprosium (Dy) and Terbium (Tb) to maintain coercivity. To address resource constraints and cost volatility, our research teams are developing advanced grain boundary engineering and optimized chemical co-precipitation. This tech enables H-grade and SH-grade magnets with minimal or zero heavy rare earth additions, providing sustainable pricing structures for green energy OEMs.
2. Magnet Recycling & Circular Supply Chains: We are integrating post-industrial and end-of-life magnet scrap recycling programs within our Sichuan plant. By utilizing direct alloy reconstitution and chemical reclamation, we convert scrap back into high-performance sintered NdFeB magnets. This loop significantly reduces carbon emissions and aligns with global Scope-3 emissions reduction goals.
3. Advanced Automation and Smart Manufacturing: Our plants are adopting AI-driven defect detection, precise automated packing, and automated pressing systems. This digital transformation reduces dimensional deviations to the micron level and improves magnetic performance consistency across large-scale manufacturing runs.
Navigating global supply chains requires robust regulatory alignment. Zhejiang Laysun Magnetics complies with all major environmental and safety standards to ensure seamless customs clearance and supply security.
Our headquarters in Hangzhou, China, coordinates our global logistics network, facilitating sea, air, and rail transport. To support our European and North American clients, we offer comprehensive compliance documentation, including certificates of conformity, RoHS/REACH declaration statements, and IMDS registration data for automotive applications.
For detailed inquiries about custom configurations, rare earth magnet dimensions, technical specifications, or direct factory pricelists, please connect with our engineering team. We will review your requirements and provide a detailed quotation within 24 hours.
Zhejiang Laysun Magnetics Ltd. Sales HQ
Headquartered in Hangzhou, China, with advanced manufacturing in Suining, Sichuan.
Please send your detailed RFP or technical drawing requests to our sales office for direct engineering evaluation.
Laysun Magnetics
