Explore our premium selection of permanent rare earth magnets and assemblies engineered to support efficient magnetic separation, industrial motor architectures, and heavy-duty lifting operations.
In modern raw material processing, recycling, and heavy industrial purification, the demand for highly efficient, scalable, and cheap magnetic separation solutions is growing rapidly. Industry operators seek solutions that maintain structural integrity and magnetic field strength under extreme conditions without inflating capital expenditure. As a leading manufacturer of high-performance rare earth NdFeB magnets, Zhejiang Laysun Magnetics Ltd. provides integrated magnet systems that address these challenges.
At the heart of any magnetic separator is the magnetic force field, defined by the magnetic field gradient ($\nabla B$) and the magnetic flux density ($B$). The force acting on a paramagnetic or ferromagnetic particle is directly proportional to these two factors. By optimizing the geometry of sintered Neodymium-Iron-Boron (NdFeB) blocks and poles, we can generate exceptionally high magnetic gradients.
Our systems utilize advanced configurations, including multi-pole layouts and Finite Element Method (FEM) optimized yoke assemblies. This allows us to offer cost-effective, high-gradient separators that isolate weak magnetic contaminants from complex process streams. This technology is essential for applications ranging from mineral purification to high-purity food processing.
Founded in 1999, Zhejiang Laysun Magnetics Ltd. has evolved from a specialist rare earth magnets producer into a global leader in high-tech magnetic systems. With a strong focus on engineering innovation and vertically integrated supply chains, we provide industrial magnetic solutions that balance cost efficiency with reliable performance.
Our main manufacturing center is located in Suining, Sichuan. This site is strategically placed to take advantage of domestic rare earth extraction and refining operations, ensuring a secure supply of raw materials. This local supply chain helps protect our production from global market volatility, allowing us to maintain stable pricing and reliable delivery schedules for our clients.
Our facilities cover the entire manufacturing process, from vacuum induction melting and strip casting to hydrogen decrepitation, jet milling, pressing, sintering, and machining. This end-to-end oversight ensures consistent quality and allows us to meet strict technical specifications for high-performance applications.
The global market for magnetic separation solutions is changing, driven by stricter environmental regulations, resource recovery goals, and the growth of the electric vehicle (EV) supply chain.
In mineral dressing, high-intensity magnetic separators are used to upgrade valuable iron ores and remove iron-bearing contaminants from industrial minerals like quartz, feldspar, and alumina.
Recycling spent lithium-ion batteries and electronics relies on magnetic separation to isolate ferrous components from the high-value "black mass" (cobalt, lithium, nickel) with minimal product loss.
Bulk material handling processes, including cement production, aggregate quarries, and coal power plants, use overbelt and drum separators to remove tramp metal that could damage down-stream crushers and mills.
Different regions present unique challenges for magnetic separator installation, including environmental conditions, space constraints, and processing requirements.
Challenge: Processing abrasive quartz sand in regions like the US Midwest. Standard separators wore down quickly, causing frequent downtime.
Solution: We designed a custom high-intensity magnetic drum using NdFeB block magnets encased in a wear-resistant stainless-steel sleeve with a tungsten carbide coating. This maintained a consistent 12,000 Gauss field, reducing iron impurities to less than 0.01% while extending the separator's operating life.
Challenge: Separating fine stainless steel particles and wire fragments from shredded plastics in European recycling plants to meet high-purity recycling standards.
Solution: We developed a high-gradient rare earth roll separator using thin NdFeB rings separated by high-permeability steel poles. This setup generated a strong magnetic gradient capable of attracting weakly magnetic, work-hardened stainless steel particles.
Our magnets are designed to integrate into existing global OEM machinery, including vibratory feeders, belt systems, and chute separators. We provide custom shapes such as blocks, segments, and rings, along with tailored coatings like Multi-layer Nickel-Copper-Nickel (Ni-Cu-Ni), Epoxy, and protective rubber. These coatings protect the magnets from moisture, chemical exposure, and physical wear in demanding environments.
The future of magnetic separation lies in higher thermal stability, improved corrosion resistance, and smarter, automated cleaning systems.
Using Dysprosium (Dy) and Terbium (Tb) diffusion at the grain boundaries to increase the coercivity of NdFeB magnets, allowing them to operate at up to 200°C without significant demagnetization.
Developing sub-micron magnetic capture matrices utilizing ultra-thin NdFeB laminates, designed specifically for purifying fine industrial materials and recycling lithium-ion batteries.
Embedding hall-effect sensors directly into magnetic plates to monitor magnetic flux in real-time, providing alerts for iron saturation or thermal stress to help prevent unplanned downtime.
Providing competitive pricing for magnetic separation solutions is not about using lower-quality materials; it is achieved through vertical integration, production scale, and proximity to key supply points.
Our proximity to major NdFeB mineral processing facilities in Sichuan minimizes logistics costs and ensures stable supply agreements for critical raw materials.
By handling all manufacturing stages in-house—including slicing, shaping, coating, and magnetizing—we reduce processing overheads and maintain control over product quality.
Our automated pressing and sintering facilities reduce waste and labor costs. This allows us to offer bulk pricing that supports large-scale industrial projects.
With headquarters in Hangzhou and production in Suining, we maintain convenient logistics routes to major coastal shipping hubs like Ningbo and Shanghai. This allows for efficient international shipping via sea, air, or rail. We also work with global distributors to ensure prompt delivery to key markets in North America, Europe, and the APAC region.
We ensure our products comply with international engineering and environmental standards, giving clients confidence in our magnetic assemblies.
Our manufacturing processes follow international standards, including ISO 9001 and ISO 14001, to ensure quality and environmental compliance. Our materials are fully compliant with RoHS and REACH regulations. For heavy industrial, mining, and oil & gas applications, we can supply systems that align with API 6D and API 607 requirements.
We provide comprehensive inspection reports with every shipment, including demagnetization curves, flux density measurements, and salt spray test results. This ensures that every magnet assembly meets its technical requirements.
Our high-performance NdFeB magnets and magnetic assemblies are used across many modern industries, ensuring efficiency and reliability.
High-torque brushless servo motor magnets designed to provide smooth motion and high power density for industrial robotic arms.
Lightweight, high-coercivity NdFeB segments that improve motor efficiency and thermal stability in drone propulsion.
High-coercivity sintered NdFeB magnets optimized for EV traction motors, designed for high thermal stability.
Compact, high-strength permanent magnets that enable smaller, more efficient brushless motors in hand tools.
Miniature magnet rings, discs, and plates designed for smartphones, optical sensors, and speakers.
Energy-efficient motor magnets for inverter compressor pumps in modern refrigerators, washing machines, and air conditioners.
Get authoritative answers to common technical queries regarding industrial magnetic separation technologies and neodymium material selection.
Explore our collection of custom magnetic components, including hooks, rubber-coated assemblies, cylinder magnets, and heavy-duty retrieving blocks.
A detailed look at our core product categories, featuring specialized configurations designed to meet specific engineering requirements.
Precision-engineered magnets designed for rapid, accurate actuation in optical and disk drive assemblies.
High-flux ring configurations designed for direct integration into electric drivetrains and generator assemblies.
Nickel-plated block magnets designed for use in sensor brackets and industrial conveyor belt tracks.
Sintered NdFeB materials available in bulk forms, providing high energy density for custom industrial designs.
Specialized ring structures designed for leak-free magnetic drives and fluid pumps.
High-coercivity blocks with customized coatings, designed for automotive traction and auxiliary drives.
Compact disc-shaped magnets designed for mounting fixtures and automated sorting lines.
High-intensity cylindrical magnets designed for grate separators and liquid line traps.
Laysun Magnetics