Explore our premium grade Neodymium Iron Boron (NdFeB) blocks, rings, cylinders, and assemblies engineered specifically for high-intensity magnetic separation, material handling, and motor applications.
Established in 1999, Zhejiang Laysun Magnetics Ltd. has evolved into a premier national high-tech leader specializing in the development, research, production, and worldwide sales of high-performance rare earth NdFeB magnets. Over the past two decades, we have committed ourselves to engineering advanced magnetic circuits that form the operational core of state-of-the-art industrial processing systems, including advanced magnetic separators for iron ore.
Our expansive production campus features cutting-edge processing tools ensuring precision output for heavy industrial machinery. Our magnets are widely integrated in electric vehicles, wind turbine generators, robotics, drones, high-load magnetic lifters, and deep dry magnetic separator systems. By maintaining precise grain refinement and utilizing optimized alloy compositions, we deliver magnetic elements with superior thermal stability and coercivity, minimizing demagnetization risks in rugged mining environments.
Industrial iron ore magnetic separation relies heavily on generating strong magnetic field gradients to isolate magnetite and other weakly magnetic iron minerals from non-magnetic gangue. Standard ferrite magnetic separation blocks lack the magnetic field density required to process fine ores effectively. This is where sintered Neodymium Iron Boron (NdFeB) plays a transformative role. Generating high remanence (Br) and supreme energy product (BH max), our custom NdFeB magnet blocks and cylinders enable separation equipment manufacturers to design smaller drums with exponentially stronger magnetic pull forces, driving recovery rates up while lowering overall capital costs.
Witness our manufacturing excellence. Zhejiang Laysun Magnetics Ltd. balances high throughput with meticulous quality control protocols to supply heavy industry OEMs globally.
Our manufacturing operations are regulated by comprehensive global quality standards. This guarantees that magnetic assemblies used in high-wear environments (such as slurry drums, wet drum separators, and self-cleaning overhead plates) survive the dynamic pressures of ore processing.
The global mining industry faces a pressing challenge: the depletion of high-grade, easily accessible iron ore deposits. To sustain global steel demands, mining enterprises must now process lower-grade ores, such as taconite, itabirite, and hematite-rich complexes. These deposits require extensive milling and fine grinding to liberate iron-bearing particles from gangue minerals, chiefly quartz and silicates.
Traditional gravity and flotation separation systems incur massive water consumption and chemical processing costs. Consequently, magnetic separation has emerged as the premier green technology for modern mineral beneficiation. However, mining operations are notoriously harsh. Equipment is subject to extreme mechanical shocks, abrasive slurry contact, and severe temperature fluctuations. Utilizing cheap, subpar magnetic separators frequently leads to premature demagnetization, causing catastrophic drop-offs in iron recovery rates and costly process downtime.
By leveraging rare earth neodymium (NdFeB) magnetic systems from trusted manufacturers like Zhejiang Laysun Magnetics Ltd., separator manufacturers can achieve high-gradient magnetic fields at a fraction of the weight and power requirements of electromagnetic designs. This achieves the lowest total cost of ownership (TCO) over the lifespan of the processing plant.
Magnetic separation utilizes the differences in magnetic susceptibility between minerals. Iron ores are categorized into:
Creating these intense field gradients requires stable permanent magnets. While ferrite magnets are cheap, their magnetic energy product is low, meaning a massive array is required to generate sufficient depth of field. Sintered NdFeB magnets, by contrast, possess the highest power-to-weight ratio of any magnetic material on earth. The engineering challenge is maintaining structural integrity. Our advanced rare earth formulations utilize dysprosium (Dy) and terbium (Tb) grain boundary diffusion techniques. This elevates the intrinsic coercivity (Hcj), ensuring the magnets operate continuously up to 150°C without significant flux loss.
As sourcing managers look to secure raw material supplies, cost-competitiveness remains a major metric. However, "cheap" must not equate to poor quality. Zhejiang Laysun Magnetics achieves optimized cost structures through advanced manufacturing, integration of vertical supply lines, and scale economy.
Our 100,000 square meter Suining manufacturing complex integrates automated pressing, sintering, and machining stages. In-house raw material slicing, automated plating (Ni-Cu-Ni, Epoxy, and specialized Rubber coatings), and computerized testing decrease material waste and eliminate external logistics markups. Generating an annual output of 5,000 tons of rare earth magnets allows us to purchase raw neodymium oxide at volume rates, passing these material discounts directly to our international clients. Furthermore, our strict alignment with ISO9001 and TS quality systems ensures that defects are minimized at the source, preventing costly onsite failures for equipment builders.
International procurement agents face changing regulatory climates. Carbon footprints, resource sustainability, and logistical reliability are top selection criteria. Sourcing components with long operational lifespans directly lowers the carbon intensity per ton of extracted ore. Zhejiang Laysun Magnetics provides full material traceability, conforming to ROHS, REACH, and global environmental protection protocols. Our strategic office network ensures rapid customer service response times and global supply safety cushions, keeping production lines running smoothly regardless of local regional supply shocks.
Different mining districts present unique geographic and metallurgical challenges. We customize magnetic circuits to fit localized requirements:
Case Study A: Wet Drum Concentrators in Western Australia
An iron ore mining hub required wet drum magnetic separators operating at high rotation speeds to process abrasive magnetite slurry. Standard ferrite blocks failed to capture fine particles under 45 microns. We designed a custom sintered NdFeB block array with N48SH grade magnets. This array increased the magnetic gradient by 40% while fitting inside the existing drum space. The change improved iron grade yield from 62.5% to 66.8% and reduced tailings loss.
Case Study B: Dry Magnetic Separation in Arid Regions of Northern Chile
Faced with extreme water scarcity, a processing plant required dry magnetic separation using high-intensity rollers. Operating temperatures in the desert regularly reach high levels, causing heat buildup inside the separator drums. We supplied high-coercivity NdFeB arc segments (UH and EH grades) that maintain magnetic performance up to 180°C. This solution allowed the plant to operate continuously without external cooling systems, saving thousands of gallons of water daily.
Headquartered in Hangzhou, China, Eneroc and Laysun Magnetics are building global subsidiaries and offices to serve our customers directly in key industrial regions.
Our advanced magnetic technologies serve a wide range of industrial applications, providing high-efficiency solutions across diverse sectors:
Get professional insights directly from our engineering team regarding grades, performance, and industrial integration.
Industrial assemblies designed for heavy-duty material handling, iron recovery, scrap metal logistics, and precise product separation.
Laysun Magnetics
