Engineered to deliver maximum torque density, low cogging force, and superior thermal stability for high-intensity servo motors and voice coil systems.
The global surge in automated systems, smart factories, and collaborative robotics (cobots) demands magnetics with unmatched coercivity ($H_{cj}$) and magnetic energy product ($(BH)_{max}$). Since 2022, the transition toward Industry 4.0 has driven robotics engineers to explore more compact, energy-dense designs. Integrated joints, planetary geared servos, and active magnetic levitation actuators rely on sintered NdFeB blocks and rings configured with multipolar alignments to achieve high torque-to-weight ratios.
At Zhejiang Laysun Magnetics Ltd., we bridge the gap between high-performance raw materials and mechanical optimization. Our NdFeB formulations minimize eddy current losses within the rotor while preventing thermal demagnetization in hostile, high-velocity operating environments typical of manufacturing floor environments.
Analyzing how magnetic technology advances to fulfill the evolving demands of dynamic automation.
Reducing dependence on heavy rare earths like Dysprosium (Dy) and Terbium (Tb) through advanced grain boundary diffusion (GBD) technology. This maintains coercivity at up to 200°C without sacrificing remanence ($B_r$).
Transitioning from simple diametrical magnetization to customized radial or sinusoidal multi-pole configurations. Ideal for low-backlash robotic encoders and high-accuracy servo rotors.
Developing closed-loop sourcing pathways for manufacturing waste and magnet scrap. Enabling circular economy principles to safeguard automated production lines against raw material volatility.
Established at the dawn of the millennium in 1999, Zhejiang Laysun Magnetics Ltd. has systematically scaled up its R&D, processing, and distribution networks. Our state-of-the-art smelting and sintering facility, occupying 100,000 square meters in Suining, Sichuan, operates 24/7. Backed by 300+ trained engineering professionals, we produce 5,000 tons of high-performance NdFeB magnets annually.
By controlling the process flow from vacuum induction melting (VIM) and jet milling to magnetic field pressing, vacuum sintering, and multi-axis CNC machining, we offer exceptional batch-to-batch consistency. Our corporate headquarters in Hangzhou, China, facilitates global distribution and rapid response logistics to major markets in North America, Europe, and Asia.
Understanding the actual implementation sectors of high-performance rare earth magnetic components.
High-torque joint actuators demand lightweight, space-optimized NdFeB arc segments to ensure fast reaction times and safe torque-limit shutdowns during human-robot interaction.
Automated Guided Vehicles (AGVs) operating in logistics distribution hubs require highly reliable traction motors. Sintered block magnets provide the heavy duty field excitation required for high torque density.
Ultra-compact voice coil motors and slotless motors utilize high-grade magnets to ensure precise, zero-cogging position tracking for robotic-assisted laparoscopic surgery.
Linear motors powering automated pick-and-place systems rely on flat permanent magnet tracks for fast acceleration and sub-micron positioning repeatability.
How our localization and integrated vertical supply chain protect international operations from market volatility.
Operating near Sichuan’s mining hubs secures raw material flow of PrNd (Praseodymium-Neodymium) and heavy rare earths, safeguarding clients from production delays.
Multi-wire slicing machines, automated grinding centers, and optical sorting machinery guarantee tolerances down to +/- 0.05 mm on critical parameters.
Testing includes high-temperature demagnetization testing, salt spray corrosion test cells, HAST chamber tests, and scanning electron microscopy (SEM) for structure validation.
We believe absolute reliability is the core requirement of any robotic OEM project. Zhejiang Laysun Magnetics Ltd. meets international regulatory standards, keeping your automated product rollouts fully compliant.
Direct answers regarding high-performance NdFeB magnets, custom tolerances, and factory direct capacity.
We manufacture a wide range of sintered Neodymium-Iron-Boron magnets, ranging from N35 to N52 for standard temperatures, up to high-coercivity grades like UH, EH, and AH, which are capable of operating reliably at up to 220°C in high-performance servo motors.
Yes. We customize magnetic assemblies including magnets pre-assembled onto steel housings, shafts, or rotors. We design custom multi-pole configurations (radial, skewed, Halbach arrays) to optimize magnetic flux patterns for your application.
Standard slicing and grinding processes achieve dimensional tolerances of +/- 0.05 mm. For high-precision applications like voice coil motors (VCM) and optical encoders, we can achieve tolerances of +/- 0.01 mm to 0.02 mm.
Choose from our specialized selections of ring, block, cylinder, arc, and rubber-coated NdFeB magnets.
Submit your custom magnetic system requirements, engineering drawings, or chemical composition requests. Our engineering team will follow up within 24 hours.
Laysun Magnetics