Explore our high-performance sintered rare earth magnets designed to optimize performance parameters in high-density motors, automated systems, and magnetic separation units.
Years of Magnetic Expertise
M² Factory Footprint
Skilled Magnet Specialists
Tons Annual Production
Since our inception in 1999, Zhejiang Laysun Magnetics Ltd. has built a reputation for excellence in the field of rare earth permanent magnets. Headquartered in Zhejiang with an extensive 100,000 m² state-of-the-art production complex in Suining, Sichuan, we focus on delivering competitive high-grade sintered NdFeB solutions globally.
By coupling advanced material science with efficient lean production pipelines, we produce over 5,000 tons of rare earth magnets annually. This massive scale, supported by strategic access to raw materials, allows us to offer optimized pricing configurations without compromising on the strict parameters of magnetic performance and reliability.
Our business model is anchored on four structural values: Quality, Credibility, Technology, and Innovation. We ensure each manufactured batch adheres to standard international regulations, serving high-demand industries like electric automotive manufacturing, precision motors, and medical imaging technology.
In global manufacturing, searching for "cheap" sintered rare earth magnets often raises quality concerns. At Zhejiang Laysun Magnetics, we re-engineer the economic model through the deployment of China Factory 4.0 automated workflows. By digitizing our smelting, strip casting, hydrogen decrepitation, and jet milling stages, we minimize raw material waste while stabilizing consistency from batch to batch.
Our strategic operations in China offer significant structural advantages:
This systematic optimization allows us to pass cost savings directly to global purchasers, making us a top exporter for high-performance magnets that fit tight development budgets.
Driving magnetic material science forward through targeted research and innovative manufacturing methodologies.
By diffusing Dysprosium (Dy) or Terbium (Tb) selectively through the grain boundaries instead of alloying them throughout the entire magnet, we achieve high coercivity (Hcj) while lowering heavy rare earth consumption. This delivers substantial cost reductions and stabilizes material pricing during market fluctuations.
To resist harsh environments, our technical roadmap prioritizes chemical deposition techniques. We offer custom multilayer options, including Nickel-Copper-Nickel (NiCuNi), Epoxy, Zinc (Zn), and Everlube coatings. These finishes undergo rigorous salt-spray test protocols to ensure durability under operational duress.
We are actively developing closed-loop recycling systems for NdFeB magnets. By recycling operational scrap and end-of-life components, Laysun Magnetics supports environmental sustainability while reducing our reliance on newly mined materials, creating a more stable cost structure.
Modern industrial design requires custom magnetic profiles that balance size and flux output. Zhejiang Laysun Magnetics Ltd. manufactures sintered rare earth magnets designed for specific industry requirements:
Navigating international supply chains requires reliable support and strict regulatory compliance. Zhejiang Laysun Magnetics supports international buyers with a dedicated export framework:
Our quality management systems are certified to ISO9001 and ISO14001 standards. We supply full trace documents, raw material certifications, and RoHS/REACH compliance files to guarantee smooth custom clearance and integration into your production process.
We work with international logistics partners to offer flexible shipping arrangements, including air freight, sea shipping, and multi-modal transport. This keeps lead times predictable and shipping costs competitive, protecting your operational timeline.
Our production facilities maintain strict quality and environmental management systems, meeting global standards for manufacturing excellence.
ISO 9001 Standard Audit Compliance
ISO 14001 Green Production Standard
ISO 45001 Workplace Safety Standard
Get answers to common technical, logistics, and production questions about sourcing sintered rare earth magnets.
We optimize production costs through vertical integration, utilizing our high-volume facility in Sichuan near primary rare earth extraction hubs. Additionally, our automated Factory 4.0 production line reduces energy and raw material waste, lowering per-unit costs for large production runs.
Sintered NdFeB magnets are manufactured by pressing powdered metal under high vacuum and heating it. This process achieves a high maximum energy product (BH max) of 35 to 55 MGOe, delivering maximum magnetic power. Bonded magnets mix magnetic powder with a plastic binder, allowing for complex geometries but with lower magnetic output (typically 4 to 12 MGOe).
We use Grain Boundary Diffusion (GBD) technology to diffuse Terbium (Tb) or Dysprosium (Dy) into the crystal junctions of the magnet structure. This increases the magnet's intrinsic coercivity, preventing demagnetization in high-temperature environments (up to 200°C) without lowering remanence.
Our quality control protocols include hysteresisgraph measurements to verify BH curve parameters, salt spray chambers to test coating durability, and automated optical coordinate-measuring machines (CMM) to verify dimensional tolerances within ±0.05 mm.
Yes. We offer fully customizable manufacturing options. We produce discs, blocks, arcs, rings, and segmented geometries with custom axial, radial, or multi-polar magnetization patterns configured to match your assembly designs.
Explore our secondary lineup of precision permanent magnets, assemblies, and custom-coated components tailored for specialized applications.
Laysun Magnetics
