High-coercivity rare earth magnetic solutions engineered for maximum performance stability.
Neodymium-Iron-Boron (NdFeB) magnets represent the pinnacle of modern permanent magnet technology. Delivering the highest energy product ($BH_{max}$) of any commercially available magnetic material, sintered NdFeB is the key enabler for lightweighting and efficiency in advanced industries. Globally, the demand for cost-effective, high-grade NdFeB magnets has soared due to the rapid electrification of transportation and the expansion of renewable energy systems.
Historically, the term "cheap neodymium magnet" carried the stigma of poor thermal stability, weak surface platings, and rapid magnetic degradation. However, today’s advanced manufacturing practices have rewritten this paradigm. Through precise elemental substitutions (minimizing heavy rare earth metals like Dysprosium and Terbium) and adopting automated sintering lines, industrial manufacturers can now supply highly affordable magnetic materials without compromising operational reliability.
For modern procurement operations, securing a stable supply of NdFeB materials involves balancing raw material costs, geographic tariffs, and the engineering capabilities of the manufacturer. Leading corporations are moving away from spot market purchases, opting instead to form long-term partnerships with verified high-capacity factories that offer structural cost advantages.
Welcome to Zhejiang Laysun Magnetics Ltd., your trusted partner in the world of advanced magnetic solutions. Since our inception in 1999, we have grown to become a national high-tech leader in manufacturing rare earth magnets, a testament to our unwavering commitment to excellence in this niche field.
Founded at the turn of the millennium, Zhejiang Laysun Magnetics Ltd. has rapidly evolved from a visionary startup to an industry pacesetter. Our state-of-the-art factory, sprawling across 100,000 square meters in the vibrant city of Suining, Sichuan, is the heart of our operations. Here, our dedicated team of 300+ employees works tirelessly to produce an impressive 5,000 tons of rare earth magnets annually.
Specializing in the development, research, production, and sales of high-performance rare earth NdFeB magnets, we cater to a diverse range of applications. Our magnets are integral to various sectors, including electric vehicles, industrial motors, computers, and consumer electronics, enhancing the efficiency and performance of these technologies.
Unpacking the structural dynamics that make Chinese NdFeB manufacturing the global standard.
With our core manufacturing facility based in Sichuan, Laysun Magnetics operates near primary rare earth mining and refining hubs. This geographic advantage eliminates long-distance transit costs for raw Neodymium, Praseodymium, and Dysprosium oxides, shielding our clients from severe raw material pricing volatility.
Our 100,000 m² facility features integrated vacuum induction melting, hydrogen decrepitation, jet milling, and automated inert-gas pressing lines. High-throughput automation drastically reduces labor expenses per kilogram, allowing us to pass significant manufacturing savings directly to our partners.
Low price never implies low quality at Laysun. We implement continuous magnetic flux testing, salt spray corrosion test protocols (up to 720 hours for advanced coatings), and thermal degradation measurements to guarantee that our magnets comply with strict industrial tolerances.
Select the optimal grade to match your performance requirements and budget limitations.
Sourcing neodymium magnets requires understanding the critical balance between remanence ($B_r$) and intrinsic coercivity ($H_{cj}$). Standard N-series magnets (e.g., N35 to N52) offer high flux densities at ambient temperatures but are prone to demagnetization above 80°C. For harsh industrial environments, adding small, precise percentages of heavy rare earths allows the creation of H, SH, UH, EH, or AH grades, raising thermal thresholds up to 230°C.
| Material Class / Grade | Remanence (Br) - kG | Coercivity (Hcb) - kOe | Intrinsic Coercivity (Hcj) - kOe | Max Energy Product (BHmax) - MGOe | Max Operating Temp (°C) |
|---|---|---|---|---|---|
| N35 (Economy Grade) | 11.7 - 12.2 | ≥ 10.8 | ≥ 12.0 | 33 - 36 | 80 |
| N52 (Peak Energy) | 14.2 - 14.7 | ≥ 10.8 | ≥ 11.0 | 49 - 52 | 80 |
| N35H (Medium Temp) | 11.7 - 12.2 | ≥ 10.8 | ≥ 17.0 | 33 - 36 | 120 |
| N42SH (High Temp Motor) | 12.8 - 13.2 | ≥ 12.0 | ≥ 20.0 | 40 - 43 | 150 |
| N38UH (Extreme Stability) | 12.2 - 12.6 | ≥ 11.4 | ≥ 25.0 | 36 - 39 | 180 |
| N33EH (Super High Temp) | 11.3 - 11.7 | ≥ 10.5 | ≥ 30.0 | 31 - 34 | 200 |
Custom neodymium shapes and grades optimized for high-performance localized environments.
Ultra-compact servo motors rely on high-grade NdFeB arc segments. These magnets provide high torque-to-weight ratios, ensuring rapid responsiveness in joint actuators.
For brushless outrunner motors in commercial drones, lightweight neodymium block magnets are crucial to maximize battery life and cargo capacities.
Permanent magnet synchronous traction motors require SH/UH grades. These magnets withstand intense operational heat while maintaining vehicle drive range.
High-flux density disc and block magnets allow compact, highly efficient handheld power tools that deliver superior torque and cooling efficiency.
From smartphone magnetic rings to voice coil motors in speakers, miniaturized neodymium rings and sheets enable slim electronic profiles.
Variable-frequency inverter compressors in modern smart refrigerators and air conditioners rely on low-noise, stable magnetic rotor assemblies.
Sourcing managers looking for cheap neodymium magnets must evaluate factors beyond the initial price per unit. The Total Cost of Ownership (TCO) is influenced by three critical variables: geometric design optimization, correct plating selection, and logistics management.
By leveraging Laysun Magnetics' raw material purchasing power and our in-house coating lines, global clients can secure reliable components while saving on unnecessary supply chain markups.
Innovative metallurgy driving down manufacturing costs while raising thermal resistance limits.
The greatest cost driver in high-temperature neodymium magnets is the concentration of expensive heavy rare earth elements (HREEs) like Dysprosium (Dy) and Terbium (Tb). These elements are traditionally mixed into the initial alloy melt, which wastes high-cost materials in the core of the grains where they provide minimal value.
Grain Boundary Diffusion (GBD) technology addresses this inefficiency. By applying a Dy/Tb layer to the surface of the sintered magnet and using controlled heat treatments, these heavy elements diffuse selectively along the grain boundaries. This technique achieves high coercivity while reducing HREE consumption by up to 70%.
As a leading national high-tech enterprise, Laysun Magnetics has integrated GBD technology into our manufacturing lines. This enables us to provide high-coercivity magnets (such as SH, UH, and EH grades) at competitive prices, protecting our global partners from market pricing surges.
Verified manufacturing quality conforming to strict international benchmarks.
To ensure high quality across our entire catalog, Zhejiang Laysun Magnetics Ltd. maintains compliance with strict international quality control systems. Our facilities are certified to ISO 9001, ISO 14001, and ISO 45001 standards. We also adhere to industry-specific quality requirements like TS16949 / API guidelines, which are crucial for demanding automotive and oil & gas applications.
Our testing labs feature high-end equipment, including X-ray fluorescence coating thickness analyzers, optical sorting systems, and demagnetization curve tracers. These tools ensure that every batch we ship meets our customers' exact specifications.
Answers to common technical and commercial questions about neodymium magnet procurement.
High-performance permanent magnets designed for motors, generators, and heavy lifting machinery.
Laysun Magnetics