Engineered to power core automation units, high-torque robotic actuators, and state-of-the-art sensory devices.
Your trusted partner in the world of advanced magnetic solutions. Since our inception in 1999, we have grown to become a national high-tech leader in manufacturing rare earth magnets, a testament to our unwavering commitment to excellence in this niche field. We enable advanced automation and robotics solutions by delivering customized, high-precision NdFeB components.
In the modern era of industrial automation, smart robotics, and high-precision motion control, efficiency is no longer a luxury—it is the baseline for global competitiveness. The transition from massive, rigid machinery to collaborative robots (cobots), highly responsive surgical robotic systems, and unmanned autonomous vehicles requires a massive increase in power density. At the core of this hardware revolution is the permanent magnet. High-performance Neodymium Iron Boron (NdFeB) magnets are the primary drivers of torque density, power efficiency, and dynamic response in voice coil motors (VCMs), servo actuators, and direct-drive planetary systems.
Zhejiang Laysun Magnetics Ltd. stands at the forefront of this technology crossover. Over the past 25 years, our engineering teams have optimized magnetic configurations to reduce cogging torque, minimize hysteresis loss, and maximize flux concentration. In high-performance automation setups, utilizing standard magnetics often leads to thermal degradation and structural failures under constant cycles. By utilizing premium, customized sintered and bonded NdFeB magnet systems, global OEMs can achieve structural minimization, enabling smaller joints, lighter arms, and faster cycle rates in manufacturing lines.
Traditional magnetic materials struggle to meet the extreme demands of robotic articulation. The joint of a collaborative robot requires high torque at low speeds to prevent the need for complex, heavy gearboxes. High coercivity (Hcj) NdFeB magnets, specifically designed with Grain Boundary Diffusion (GBD) technology, can maintain their magnetic integrity under high temperatures (up to 240°C) and heavy demagnetizing fields.
Whether it is an EPS (Electric Power Steering) motor in an autonomous transport cart or a voice coil motor (VCM) driving micro-positioning units in pick-and-place robots, our specialized NdFeB shapes (including arcs, rings, and complex blocks) ensure that the motor runs cooler, consumes less current, and responds instantly to controller signals.
The global automation industry demands supply chain resilience, cost predictability, and zero-defect quality. Zhejiang Laysun Magnetics Ltd. meets these demands through our state-of-the-art 100,000-square-meter facility in Suining, Sichuan. Siting our factory in Southwest China provides direct strategic access to major rare earth processing regions. This integration ensures our manufacturing lines have a reliable supply of raw materials like neodymium, dysprosium, and terbium, shielding our international clients from price volatility and export delays.
By implementing Factory 4.0 standards, our Suining production lines feature automated vacuum sintering furnaces, intelligent multi-axis pressing machines, and inline automated sorting and testing systems. Through continuous monitoring, we ensure that every single batch of magnets produced exhibits consistent magnetic flux tolerances down to ±1%. This level of precision is critical when building multi-pole ring magnets or arc segments for automated assembly robots, where minor discrepancies in magnetic signature can cause severe vibration and torque ripples.
Direct integration with Sichuan-based rare earth processing plants guarantees raw material supply, reducing lead times and ensuring competitive pricing.
Using laser-interferometry dimensional testing and automated flux measurement machines to guarantee total reliability across large production runs.
Proprietary Nickel-Copper-Nickel (Ni-Cu-Ni), Epoxy, and customized Rubber Coatings designed specifically for harsh, humid, and chemical-heavy automated cleanrooms.
As robotics move towards human-machine collaboration (cobots) and autonomous mobility (AMRs), the tech roadmap for magnetic materials focuses on three critical vectors: thermal limits expansion, weight minimization, and structural integration.
1. Dy-Free and Tb-Free Grain Boundary Diffusion (GBD): Traditionally, heavy rare earths like Dysprosium (Dy) and Terbium (Tb) were added to NdFeB alloys to increase temperature resistance. Our research center has successfully commercialized GBD technology, allowing heavy rare earths to be selectively diffused along grain boundaries rather than mixed throughout the entire alloy. This dramatically reduces material cost while pushing operating limits to 220°C without losing high remanence (Br).
2. Multipolar Radial Orientation: In modern automation, assembling rotors with individual arc segments is labor-intensive and prone to alignment errors. Zhejiang Laysun's technological focus includes the production of large-scale, high-density radial multi-pole ring magnets. By applying complex magnetic fields during the pressing process, we can align magnetic domains radially inside a single ring, enabling higher rotational speeds, lower acoustic noise, and smooth torque profiles in robot servo drives.
3. Hybrid Structural Magnetics: Integrating magnetic components directly with metallic armatures or plastic housings. By utilizing customized rubber coatings and over-molding, we offer ready-to-assemble structural magnet assemblies that prevent corrosion while simplifying structural installation for robot manufacturers.
At Zhejiang Laysun Magnetics, our business model rests on four pillars: Quality, Credibility, Technology, and Innovation. By positioning our R&D teams inside the early stages of product design with robotic developers, we assist in finite element method (FEM) simulations to model magnetic field patterns, guaranteeing that the magnet geometry matches the specific motor design.
Our commitment ensures that when a client buys our robotics-enabling NdFeB blocks or arcs, they receive a fully optimized magnetic solution, not just an off-the-shelf magnet.
Our high-performance NdFeB magnets power various industrial and consumer applications, ensuring seamless efficiency and control.
Global enterprise procurement teams face distinct challenges when sourcing rare earth magnetic components. Supply risk, compliance, dynamic price fluctuations, and strict tolerances make selection a complex engineering decision. As a trusted B2B partner, Zhejiang Laysun Magnetics Ltd. provides complete transparency and structured documentation to streamline procurement processes.
We offer flexible pricing options, raw material indexing (tied to global metal exchange markets), and long-term supply contracts that guarantee pricing stability for continuous production. Additionally, we provide comprehensive design assistance, rapid prototyping services within 7 to 10 days, and full batch traceability. This allows procurement and quality engineers to track magnets back to their original oxide batch, ensuring absolute compliance with aerospace, automotive, and medical standards.
Advanced grinding and slicing machinery ensures strict physical tolerances within ±0.02mm, preventing mechanical assembly errors.
Every shipment is accompanied by demagnetization curves (B-H loops) proving the exact coercivity, remanence, and maximum energy product ratings.
Specially engineered, shielded iron sheet packaging for air cargo allows hassle-free customs clearance and fast air-freight transport.
To serve multinational OEMs, Laysun Magnetics maintains a robust certification matrix. Our production facilities and management models are fully certified under API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and IATF 16949. This extensive framework ensures that we meet the regulatory demands of critical fields, including medical robotics, automotive drivetrains, and aerospace control systems.
Headquartered in Hangzhou, China, and with strategic facilities throughout Sichuan, we have built a global logistics network to support customers worldwide. If you require copies of our certificates, safety data sheets, or RoHS/REACH compliance files, our sales support team is ready to assist.
Expert answers regarding permanent magnets in robotic actuation systems and high-precision motor applications.
Complete procurement options for industrial designers, B2B procurement managers, and mechanical engineering teams.
Partner with Zhejiang Laysun Magnetics Ltd. to elevate your automation and robotic hardware designs. Submit your design specifications, dimensions, and alloy requirements, and our engineering team will respond with a formal quotation and technical feedback within 24 hours.
Zhejiang Laysun Magnetics Ltd.
National High-Tech Industry Leader since 1999
Laysun Magnetics