Discover our comprehensive collection of custom-fabricated neodymium permanent magnet assemblies, built to survive the most rigorous industrial demands.
Founded at the turn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has evolved from a visionary startup into a nationally certified high-tech enterprise. Today, we stand as an international pacesetter in the research, development, and high-volume manufacture of rare earth NdFeB permanent magnets. With a world-class manufacturing facility covering 100,000 square meters in Suining, Sichuan, and our corporate headquarters located in Hangzhou, Zhejiang, we leverage regional raw materials and advanced metallurgical processing to deliver reliable materials globally.
Our operation is powered by a dedicated force of 300+ engineering professionals and skilled specialists, yielding an annual capacity of 5,000 tons of premium sintered neodymium magnetic materials. Our products serve as vital components in electric vehicles (EV), advanced automotive power steering systems (EPS), consumer electronics, industrial automation systems, haptic feedback actuators, and aerospace technology.
Miniature neodymium magnets, specifically the 5mm x 2mm disc (diameter × thickness) profile, represent a critical geometry within current B2B manufacturing ecosystems. Despite their compact physical volume, these magnets deliver high magnetic flux density relative to their mass, thanks to their tetragonal Nd2Fe14B crystal structures.
For high-frequency haptics, sensory interfaces, and acoustic components, engineering teams must evaluate physical limits alongside raw pull forces. Zhejiang Laysun Magnetics manufactures 5mm x 2mm magnets ranging from grade N35 up to the maximum energy density of N52. When application parameters demand high temperature thresholds, we formulate custom grades containing Dysprosium (Dy) and Terbium (Tb) modifiers (M, H, SH, UH, EH, AH series) to increase intrinsic coercivity (Hcj) and resist demagnetization at temperatures up to 220°C.
| Magnetic Grade | Remanence (Br) - kG | Coercivity (Hcb) - kOe | Intrinsic Coercivity (Hcj) - kOe | Max Energy Product (BHmax) - MGOe | Max Temp Limit (°C) |
|---|---|---|---|---|---|
| N35 | 11.7 - 12.1 | ≥ 10.9 | ≥ 12.0 | 33 - 36 | 80°C |
| N45H | 13.2 - 13.7 | ≥ 12.0 | ≥ 17.0 | 43 - 46 | 120°C |
| N52 | 14.2 - 14.8 | ≥ 11.2 | ≥ 11.0 | 50 - 53 | 80°C |
| N42SH | 12.8 - 13.2 | ≥ 12.0 | ≥ 20.0 | 40 - 43 | 150°C |
| N35EH | 11.7 - 12.1 | ≥ 11.0 | ≥ 30.0 | 33 - 36 | 200°C |
Processing 5mm x 2mm magnetic discs requires high manufacturing precision. At Zhejiang Laysun Magnetics Ltd., we use advanced multi-wire slicing machines and automatic high-speed grinders to maintain a standard dimensional tolerance of ±0.05mm, and can achieve ±0.01mm for specialized instruments. Our automated visual sorting lines check 100% of finished micro-magnets to prevent chipped edges, structural micro-cracks, and coating irregularities before shipping.
Raw NdFeB material is highly susceptible to atmospheric oxidation. To ensure reliability in fields like medical devices, consumer electronics, and industrial sensors, we offer several surface coating technologies:
Miniaturization in modern hardware design continues to drive global demand for micro-scale components. Below are the key industrial integrations where our 5mm x 2mm neodymium magnets are utilized:
As raw material costs fluctuate and environmental policies tighten, the rare earth magnet supply chain requires stability and innovation. At Zhejiang Laysun Magnetics Ltd., we address these industry challenges through concrete research initiatives:
Since 1999, Zhejiang Laysun Magnetics has combined technical expertise with industrial-scale capability to deliver reliable magnetic components worldwide.
Our operations comply with international quality, safety, and environmental standards.
ISO 9001:2015
IATF 16949
CE Compliant
Additional compliance standards met: API 6D, API 607, ISO 14001, ISO 45001. Contact our sales office for copies of our official registration records.
Technical answers to help engineers specify, integrate, and handle 5mm x 2mm NdFeB magnets in B2B applications.
Below are additional configurations and custom magnetic assemblies manufactured in our 100,000 m² Suining facility.
Looking for a custom magnetic solution? Contact Zhejiang Laysun Magnetics Ltd. Our engineering team will review your requirements and follow up within 24 hours.
Laysun Magnetics
