Explore our high-performance micro NdFeB solutions engineered to custom tolerances
In the modern era of industrial engineering, the demand for miniaturization has pushed magnetic components to their physical limits. Tiny Neodymium Magnets, often defined by dimensions under 3mm down to sub-millimeter scales, require sophisticated metallurgy to retain high magnetic performance. As standard bulk materials lose stability at miniature sizes, manufacturers rely on specialized sintering processes and advanced grain boundary diffusion (GBD) technologies to guarantee maximum density and alignment.
Unlike larger NdFeB magnets, tiny magnets suffer disproportionately from surface oxidation and structural degradation. Zhejiang Laysun Magnetics Ltd. overcomes these challenges by utilizing premium raw materials with high intrinsic coercivity (Hcj) and applying high-density plating techniques. This enables our micro magnets to maintain outstanding coercivity and temperature resilience up to 230°C in demanding environments such as voice coil motors (VCM), medical surgical devices, and aerospace sensors.
Your Trusted Partner in the World of Advanced Magnetic Solutions Since 1999
Since our inception at the turn of the millennium, Zhejiang Laysun Magnetics Ltd. has evolved from a visionary startup to an industry pacesetter and national high-tech leader. Sprawling across a 100,000 m² state-of-the-art facility in Suining, Sichuan, we employ 300+ highly trained professionals. Our annual production capacity reaches 5,000 tons of high-grade rare earth magnets, ensuring a steady, scalable supply for global supply chains.
At Laysun Magnetics, our ethos is built on four core pillars: Quality, Credibility, Technology, and Innovation. We specialize in researching and producing sintered NdFeB magnets, catering to various high-tech sectors including electric vehicles (EV), industrial automation, telecommunications, and consumer electronics. Our continuous investments in clean-room micro-slicing and advanced plating technologies make us the go-to partner for custom micro magnet applications worldwide.
By working with us, global procurement managers bypass intermediaries and secure direct factory quotes, custom engineering support, and complete quality traceabilities from raw materials to finalized coated micro components.
Engineered for high-end micro actuators, automotive sensors, and magnetic assemblies
Procuring Tiny Neodymium Magnets presents unique structural challenges for global enterprise buyers. When dealing with magnet sizes that measure in micrometers, traditional quality assurance strategies fail. Buyers from North America, Europe, and Asia require absolute stability across five main dimensions: dimensional tolerances, flux consistency, thermal stability, surface finish, and regulatory compliance.
At microscopic sizes, even a slight deviation in length, width, or diameter can prevent automated pick-and-place nozzles from picking up the magnets, or cause sensor arrays to fail. Our modern CNC grinding facilities, wire electro-discharge machining (EDM), and high-precision double-disc grinders enable us to supply miniature disc, block, and ring magnets with dimensional tolerances as tight as ±0.01 mm (and down to ±0.005 mm for high-end optical sensors).
Micro NdFeB magnets are highly sensitive to surface oxidation due to their exceptionally high surface-area-to-volume ratio. To counter this, we deploy specialized corrosion-resistant surface coatings:
A tier-1 smartphone camera module supplier experienced focus drift due to variations in magnetic flux strength in their 1.2mm x 0.8mm x 0.5mm NdFeB magnets. By switching to Laysun Magnetics' GBD (Grain Boundary Diffusion) grade magnets with 100% automated optical sorting, we reduced magnet-to-magnet flux deviation down to < 1.5%, stabilizing camera autofocus performance under thermal strain.
Delivering heavy-duty magnetic flux in micro dimensions for next-generation technology
Operating a global high-tech brand demands absolute compliance with international trade and environmental standards. At Zhejiang Laysun Magnetics, we manage raw materials systematically, ensuring complete traceability. We hold world-class manufacturing credentials, including ISO 9001, ISO 14001, and IATF 16949 certifications for the automotive supply chain.
All magnets exiting our facility comply fully with RoHS and REACH regulations, preventing heavy metal contamination in consumer and medical products. For international OEMs, our strategic location in Hangzhou allows swift logistics via the ports of Ningbo and Shanghai. Our logistics hubs in North America and Western Europe provide seamless delivery, stocking options, and on-site engineering consultations.
As fields like micro-robotics, surgical implants, and artificial intelligence develop, the demand for powerful tiny magnets will grow. Our technical roadmap highlights two key strategies:
Grain Boundary Diffusion (GBD) Extension: GBD replaces expensive heavy rare earths (like Dysprosium and Terbium) at the core of magnet grains, only applying them to the outer boundaries. This technique yields extremely high coercivity without sacrificing remanence, which optimizes manufacturing costs and stabilizes pricing.
Ultra-thin Protective Overcoats: We are testing organic-inorganic hybrid nano-coatings to protect tiny NdFeB magnets. These 1-micron barrier coatings offer superior scratch and corrosion resistance compared to traditional galvanic coatings.
Headquartered in Hangzhou, China, we are building local subsidiaries and office locations to serve global clients swiftly.
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Laysun Magnetics