Engineered for high-field magnetic separators, industrial scrap sortation, electric drivetrains, and manufacturing execution systems.
Industrial manufacturing, chemical processing, mining, and food packaging industries rely heavily on magnetic separation to isolate unwanted ferrous contaminants or recover high-value ferromagnetic materials. Dynamic magnetic separators operate by creating a spatial magnetic gradient that exerts force on moving particles. The physical applicability of these systems is determined by the magnetic susceptibility of the media and the coercivity of the separator's permanent field.
By leveraging Sintered Neodymium-Iron-Boron (NdFeB) elements, modern separation equipment achieves flux densities exceeding 1.2 Tesla (12,000 Gauss) directly on the conveyor interface. This allows separation arrays to entrap even weak magnetic fractions, such as hematite, rust flakes, work-hardened stainless steel particles, and structural iron debris from processed bulk commodities.
Zhejiang Laysun Magnetics Ltd., with over 25 years of engineering experience, stands as a prime OEM partner, supplying custom motor magnets, permanent blocks, and multi-pole cylinder designs optimized for high-intensity separation grids, drum separators, and self-cleaning cross-belt separator applications.
Founded at the turn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has evolved from an ambitious domestic startup into a widely respected national high-tech leader in the rare-earth magnetics sector. Spanning a state-of-the-art 100,000 square meter factory floor in the high-growth industrial cluster of Suining, Sichuan, we focus on research, design, sintering, mechanical tooling, surface coatings, and magnet assembly.
Our global presence is supported by our regional operations and partnerships. With headquarters in Hangzhou, China, and global distribution subsidiaries, we supply high-performance NdFeB blocks, cylinders, rings, and segment arcs designed to withstand high working temperatures, corrosive environments, and strong counter-demagnetizing fields. Under rigorous quality management systems, our facility achieves an annual output of 5,000 tons of rare earth materials, matching modern specifications for critical applications.
OEM magnetic separation requires materials that maintain magnetic properties under stress. Below is our scientific development protocol to ensure structural and magnetic reliability.
To reduce dependence on heavy rare earths like Dysprosium (Dy) and Terbium (Tb), Laysun utilizes grain boundary diffusion. This process concentrates Dy/Tb solely at the boundaries of the Nd2Fe14B crystals. The result is high coercivity ($H_{cj}$ up to 28 kOe) while maintaining remanence ($B_r$) levels above 1.4 Tesla, allowing separators to run in hot-slurry extraction pipelines up to 220°C without permanent demagnetization.
Magnetic separation environments expose magnets to moisture, acidic chemical solutions, and abrasive solids. We specialize in producing multi-layer protective surfaces, including triple-plated Ni-Cu-Ni, high-adhesion thermal Epoxy, Parylene-C, and custom vulcanized rubber encapsulations. These protective systems prevent hydrogen decrepitation and internal material oxidization.
Our engineering team simulates magnetic flux densities using FEA models to design optimal magnetic circuits (such as Halbach Arrays and alternating North-South poles). This ensures maximum gradient force at the separator belt interface, matching the particle size and fluid dynamics of our customers' processes.
From industrial sorting arrays to high-speed automation magnets, we deliver standardized and custom permanent magnetic solutions.
Magnetic separation plays a key role in quality control, resource recovery, and asset protection across major global industries.
In electric vehicle battery production, even minute iron contaminants (down to ppb levels) can cause internal short circuits and battery fires. Our high-gradient wet magnetic separators extract fine iron nanoparticles from liquid slurries of cathode active materials (NMC, LFP), ensuring product safety.
In silica sand processing, glass manufacturing, and rare minerals extraction, iron contaminants lower raw material purity. Our cross-belt separator plates and drum magnets provide high magnetic flux to isolate iron-bearing minerals under heavy loads.
Beyond separation, our high-grade sintered NdFeB motor magnets power Electric Power Steering (EPS), robotic actuators, generators, and wind turbines, offering high torque density and resistance to magnetic degradation.
Supplying permanent magnetic systems to various high-demand technical sectors globally.
Our production facilities maintain strict quality standards to ensure consistency and reliability. Zhejiang Laysun Magnetics Ltd. operates under recognized industrial quality management processes.
Our manufacturing and product designs comply with key industry standards, including: API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and IATF 16949 (TS). This compliance ensures our products meet the performance requirements of automotive EPS, heavy mining separation, and aerospace installations.
For custom inquiries, volume pricelists, or technical datasheets, please reach out to our engineering office. We respond within 24 hours with custom design support and formal quotes.
Technical guidance on selecting permanent magnetic solutions for manufacturing and separation applications.
Explore our industrial-grade block segments, high-capacity lifters, and custom permanent components designed for heavy-duty applications.
Laysun Magnetics