Explore our core selection of high-performance sintered NdFeB magnets, specifically tailored for demanding commercial and industrial environments.
Maximizing Magnetic Moment in Ultra-Compact Specifications
The 10mm X 5mm neodymium magnet represents a structural sweet spot in the permanent magnet sector. Characterized by a high aspect ratio, this configuration offers an extraordinary concentration of magnetic energy (measured in Mega-Gauss Oersteds, or MGOe) relative to its micro-volume footprint. Because NdFeB (Neodymium-Iron-Boron) compounds represent the most powerful rare-earth materials currently available commercially, these specific dimensional dimensions are critical for precision engineering applications.
Whether produced as disc-shaped configurations or structured blocks, these magnets provide high coercive force ($H_{cj}$) and high remanence ($B_r$), preventing demagnetization in stressful environments. Our proprietary sintering process ensures structural integrity and consistent flux distribution across every single batch exported globally.
Available in grades from N35 to N52, alongside high-temperature classes (M, H, SH, UH, EH, AH) rated up to 220°C.
Triple-layer Ni-Cu-Ni plating, black/grey epoxy, rubber coating, gold electroplating, and specialized passivation treatments.
Established in 1999 — Pioneers in Advanced Magnetics
Founded at the turn of the millennium, Zhejiang Laysun Magnetics Ltd. has rapidly evolved from a visionary startup to an industry-leading pacesetter in China. Our state-of-the-art manufacturing facility sprawls across a massive 100,000 square meters in the industrial hub of Suining, Sichuan. Headquartered in Hangzhou, Zhejiang, we coordinate our worldwide subsidiaries and offices to provide comprehensive supply chain support directly to international customers.
We are a recognized national high-tech enterprise, specializing in the research, development, production, and distribution of high-performance sintered NdFeB permanent magnets. With a dedicated team of over 300 skilled professionals, including our core engineering research unit, we achieve an annual output capacity exceeding 5,000 tons of premium rare earth magnets.
Engineered for compliance across aerospace, automotive, medical, and defense standards.
| Dimensional Specifications | 10mm Diameter x 5mm Thickness (+/- 0.05mm) |
|---|---|
| Material Grade Range | N35 to N52 (Standard), 35M-50M, 35H-48H, 35SH-45SH, 30UH-42UH, 30EH-38EH, 28AH-35AH |
| Remanence ($B_r$) | 1.17 Tesla to 1.48 Tesla (11.7 KGs - 14.8 KGs) |
| Coercivity ($H_{cb}$) | ≥ 828 kA/m (≥ 10.4 KOe) |
| Intrinsic Coercivity ($H_{cj}$) | ≥ 955 kA/m up to ≥ 2626 kA/m (≥ 12 KOe to ≥ 33 KOe) |
| Max Energy Product ($BH_{max}$) | 263 kJ/m³ to 414 kJ/m³ (33 MGOe to 52 MGOe) |
| Maximum Operating Temperature | 80°C (Standard N-grade) up to 220°C (AH high-coercivity grades) |
| Standard Coatings | Ni-Cu-Ni (5-15 μm), Zinc (3-10 μm), Black/Grey/Clear Epoxy (15-30 μm), Gold, Parylene |
| Direction of Magnetization | Axial (through the 5mm thickness) or Diametrical (across the 10mm diameter) |
Empowering the driving forces behind robotics, clean energy, automation, and micro-electronics.
Our NdFeB magnets drive automotive Electric Power Steering (EPS) and ancillary drive motors, providing extreme torque stability and thermal resistance under long-duration vibration profiles.
In high-torque brushless DC motors (BLDC), 10mm x 5mm circular magnet arrays minimize rotational mass while offering maximal torque, ensuring stable flight control and highly responsive micro-actuation.
Used widely in Voice Coil Motors (VCM) for smartphone camera autofocuring, miniature audio speakers, haptic motors, and MagSafe magnetic docking stations requiring tight spatial constraints.
Integrated inside heavy-duty electromagnetic lifters and pot assemblies, enabling safe holding, separation, and transport of heavy ferromagnetic steel workpieces up to 1000kg.
Optimizing Raw Material Logistics without Compromising E-E-A-T Quality Standards
In global manufacturing, the term "cheap" often raises concerns about subpar material choices or inaccurate magnetizing characteristics. At Zhejiang Laysun Magnetics Ltd., we redefine "cheap" as unparalleled cost efficiency achieved through operational optimization.
By controlling the entire process stream—from purchasing raw oxides (Neodymium, Praseodymium, Dysprosium) directly from local refining centers to running high-volume vacuum induction furnaces and automatic multi-axis slicing machines—we eliminate middleman markups. Our centralized location in Sichuan (the heart of China's hydroelectric power resources) lowers our manufacturing footprint and utility costs, allowing us to pass these savings down to our distribution network.
We guarantee strict dimensional tolerances (+/-0.02mm upon request) and zero magnetic degradation over time. Our direct factory export pricing structure offers global purchasers a competitive advantage in securing long-term contracts for their raw assembly components.
Compliant with leading international regulatory systems
Quality assurance is embedded in every phase of our manufacturing cycle. Zhejiang Laysun Magnetics Ltd. meets strict international quality criteria, enabling our materials to be imported smoothly into European, North American, and Asian industrial markets. Our certifications include:
The Evolution of Grain Boundary Diffusion & Heavy Rare Earth Elimination
To reduce dependence on volatile heavy rare earth elements like Dysprosium (Dy) and Terbium (Tb), Laysun is actively developing and utilizing Grain Boundary Diffusion (GBD) technology. By diffusing heavy rare earths selectively along the grain boundaries rather than distributing them evenly throughout the crystalline structure, we achieve extremely high thermal stability and coercivity while cutting rare earth consumption by up to 70%. This breakthrough allows high-temperature 10mm x 5mm magnets to remain commercially affordable for EV and wind generator designs.
Standard NdFeB is notoriously prone to internal oxidation if exposed directly to atmospheric moisture. Our material science division is refining Parylene-C and multi-layer chemical vapor deposition (CVD) coatings. This ensures zero oxidation and a lifetime exceeding 20 years in highly humid marine or industrial conditions, without altering the dimensional boundary conditions of the 10mm x 5mm footprint.
As green industrial directives grow tighter across North America and Europe, recycling NdFeB becomes critical. We have designed processes to recover spent neodymium-iron-boron alloys from electronics and motor components. Our recycling loop allows up to 30% recycled material feed to be integrated into raw powder processes without reducing BHmax or structural properties.
Direct technical answers addressing the most common questions raised by procurement officers and product design engineers.
Under ideal test conditions (direct pull against a flat, polished steel plate of sufficient thickness), a standard N35 grade 10mm x 5mm disc magnet generates approximately 2.8 kg (6.2 lbs) of holding force. Higher grades like N52 can push this value to 3.8 kg (8.4 lbs) under the same testing parameters.
Standard NdFeB grades (e.g., N52) will experience irreversible magnetic loss if exposed to temperatures above 80°C (176°F). For high-temperature environments, engineers must specify coercive grades like 35H (up to 120°C), 35SH (up to 150°C), or 35EH/AH (up to 200°C/220°C), which utilize heavy rare earth elements to maintain magnetic stability under heat.
For corrosive environments, a standard Ni-Cu-Ni coating is insufficient over long-term cycles. We recommend using an Epoxy coating (Black or Grey), a Rubber-coated finish, or Parylene encapsulation. These organic coatings create an airtight seal, preventing oxygen and moisture from attacking the core NdFeB matrix.
Pricing variances typically stem from raw material purity, grade accuracy, and manufacturing tolerances. Cheap suppliers often use scrap material, leading to unstable magnetic output and brittle physical properties. As a direct manufacturer, Zhejiang Laysun Magnetics achieves lower costs through massive scale (5,000 tons annually) and advanced automation, providing stable, certified industrial quality at competitive prices.
Explore our specialized magnetic solutions for industrial lifters, automotive motors, and customized assembly requirements.
Get custom configurations, dimensional sizing, technical evaluation, and detailed pricing within 24 hours. Connect directly with our engineering division.
Contact Our Export Division
Laysun Magnetics
