Explore our first tier of custom-engineered permanent neodymium magnets, pot assemblies, and high-performance magnetic segments designed for global industry sectors.
Your Trusted Enterprise Partner in Sintered & Bonded Rare Earth Magnetic Infrastructure Since 1999.
Established at the turn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has scaled into a national high-tech powerhouse specializing in the R&D, structural design, and large-scale manufacturing of permanent rare earth NdFeB magnets. Over 25 years of engineering experience forms the backbone of our operation, guiding our continuous efforts to deliver peak magnetic metrics for dynamic applications.
Our core operational ethos centers around four primary pillars: Quality, Credibility, Technology, and Innovation. Through these guidelines, we construct high-performance sintered neodymium magnets that power industrial automation, electric drivetrains, medical tech, and consumer electronics worldwide.
We work tirelessly to expand raw material vertical integration, helping global clients secure optimal pricing with strong supply stability. From raw ore processing to finished coated assemblies, our facility leverages modern automation to meet challenging design requirements.
A inside look at Zhejiang Laysun Magnetics' production footprint and finished sintered magnetic media.
Deep engineering insights into manufacturing, micro-geometry alignment, grain-boundary diffusion, and coating technologies.
Spherical Neodymium Magnets (also classified as NdFeB magnetic spheres or micro-balls) represent a unique class of permanent magnet products. While traditional geometries like blocks and rings focus on linear magnetic vector paths, spherical geometries command custom 3D magnetic field distribution. Creating high-performance spherical magnets requires highly precise control over metallurgy, pressing, and finishing tolerances.
Isotropic spherical magnets offer simple multidirectional magnetization but possess lower energy products (BHmax). For maximum force, anisotropic sintering is essential. This requires specialized powder pressing tools where multi-axis magnetic alignment fields shape the NdFeB crystalline structure. This ensures the optimal magnetic orientation axis passes through the sphere's poles with minimal magnetic deviation.
To reduce dependence on heavy rare earths like Dysprosium (Dy) and Terbium (Tb) while maintaining coercivity under thermal load, Laysun utilizes Grain Boundary Diffusion. By diffusing Dy/Tb directly along the grain boundaries rather than throughout the entire matrix, our magnets resist demagnetization at temperatures up to 200°C without sacrificing remanence (Br).
Unlike flat geometric components, spherical magnets demand near-perfect sphericity to function in precision assemblies. Laysun operates automated ball-grinding systems that polish raw sintered blocks into spheres with diameter tolerances down to ±0.01mm (and down to ±0.005mm on custom orders). This helps prevent vibration and mechanical wear in dynamic systems.
Raw NdFeB is vulnerable to atmospheric oxidation. Our multi-layer protection methods shield the magnet core from corrosion. Coating options include standard Ni-Cu-Ni plating, corrosion-resistant black/gray epoxy, parylene coatings for medical applications, and direct rubber encapsulation to reduce impact damage.
We are actively researching heavy rare-earth-free (HREE-free) formulations. This aims to develop N54 and N56 equivalent performance characteristics without relying on volatile global materials. Additionally, we are optimizing automated testing lines that analyze 100% of product flux profiles during high-speed packaging.
How our spherical and high-intensity neodymium magnets integrate into global advanced technology sectors.
Electric drivetrains require extremely reliable magnets. Our high-coercivity NdFeB segments and multi-pole ring magnets are designed to operate under high temperatures and vibration inside traction motors and Electronic Power Steering (EPS) systems, helping to maintain drivetrain efficiency.
Modern industrial robots and cobots rely on compact motors for precise joint movement. Our high-flux density magnets allow manufacturers to design smaller, lighter actuators with high torque density, improving overall robot speed and positioning accuracy.
From Magsafe accessories and acoustic driver diaphragms to linear vibration motors, neodymium magnets play a key role in consumer tech. Laysun produces high-grade magnets with consistent thickness tolerances to match the assembly needs of consumer devices.
Offshore and onshore wind turbines use direct-drive permanent magnet generators to reduce maintenance needs. Our magnets help optimize conversion efficiency and stand up to marine environments through specialized corrosion-resistant coatings.
Spherical magnets are utilized in medical pumps, micro-valves, and targeting systems. By using bio-compatible Parylene coatings, we supply medical device companies with reliable permanent magnets that meet strict sanitation and regulatory standards.
Modern gaming controllers and touchscreens rely on precision haptic systems. Our micro-magnets provide the rapid acceleration and deceleration times needed to generate realistic tactile feedback for user interfaces.
Our 100,000 square meter factory in Suining, Sichuan, operates using modern automated production systems. By integrating advanced raw material processing, sintering, and testing systems, we maintain stable product quality across large production volumes.
Using a modern Manufacturing Execution System (MES), we monitor temperature, pressure, and vacuum levels in real time during sintering. This digital tracking allows us to trace finished magnets back to their original raw material batches, supporting consistent magnetic performance.
Having our facility near major mineral processing centers in China helps protect our operations from supply chain delays and material price swings. We pass this stability on to our global customers through reliable lead times and predictable cost structures.
We meet international standards to support smooth global trade, customs clearance, and quality assurance.
Zhejiang Laysun Magnetics maintains certifications including ISO 9001, ISO 14001, ISO 45001, CE, API 6D, and API 607. Our products are fully compliant with RoHS and REACH regulations, simplifying imports into North American and European markets.
We maintain full material traceability for our products. Every shipment includes metallurgical certifications, demagnetization curves, and coating thickness reports to verify that finished components meet your specified engineering requirements.
We support various delivery methods, including air freight, sea shipping, and multi-modal transport. By coordinating with regional warehousing partners, we help customers establish safety stocks to support Just-in-Time (JIT) manufacturing schedules.
Common questions regarding magnetic grades, coating selection, tolerances, and custom ordering processes.
Browse our secondary selection of specialized permanent magnets, mounting assemblies, and custom-plated components.
Laysun Magnetics
