Premium sintered NdFeB systems, engineered for maximum energy density and precise magnetization alignment.
Unlike ferromagnetic substances that exhibit strong, spontaneous magnetization, paramagnetic materials possess small, positive susceptibility to magnetic fields. Magnetization in these materials requires the application of highly controlled, intensive external magnetic fields. The magnetic moments of the atoms or molecules align along the field vectors, creating transient magnetic properties that are widely exploited in specialized sensors, medical instrumentation (like MRI platforms), and high-frequency communication modules.
By leveraging high-energy pulsed magnetization equipment, our manufacturing lines achieve precise spin-alignment within materials. This is crucial for applications that demand high consistency under varying thermal conditions and low magnetic loss profiles.
A National High-Tech Pioneer & Strategic Global Supplier Since 1999
Founded at the dawn of the millennium, Zhejiang Laysun Magnetics Ltd. has evolved into an industry-recognized pacesetter. Our modern production complex in Sichuan serves as our central hub, enabling us to deliver 5,000 tons of rare earth NdFeB magnets annually. Our products serve as vital components in electric vehicles (EVs), industrial automation, medical robotics, wind power generators, and consumer electronics worldwide.
We operate with a commitment to four core pillars: Quality, Credibility, Technology, and Innovation. Our vision centers on shaping the future of industrial magnetic solutions by providing technical expertise, customized prototyping, and robust, high-volume production lines.
Analyzing key shifts in rare earth material demands, supply chain integration, and the drive toward China Factory 4.0 standards.
As high-density electric vehicle drivetrains and consumer electronics scale down, the demand for high-coercivity (Hcj) magnets increases. Our dysprosium diffusion technologies and grain boundary engineering allow us to keep magnetization efficiency high even in reduced form factors.
Modern OEM procurement departments look for suppliers that offer vertical integration. With raw material sourcing, processing, metallurgical treatment, magnetizing, and finishing lines housed in our own factories, we insulate clients from market fluctuations.
Through automated material dosing, robotic alignment fixtures, and sensor-driven pulse magnetizers, we ensure minimal spatial variations within each manufactured batch. This level of automation guarantees that each parts batch is uniform.
Industrial compliance requires adhere to environmental standard parameters. Our factories are certified to ISO 9001 and ISO 14001, verifying that waste streams and energy footprint match eco-standards set by Europe and North America.
Technological advancement is not just about keeping pace; it is about establishing new benchmarks in magnet performance. We invest significantly in R&D to optimize the grain boundary structures of our sintered NdFeB magnets. By minimizing the amount of heavy rare earths used while maintaining performance, we deliver solutions that are both high-performing and cost-effective.
Connecting physical properties of magnets with specialized industrial use cases
Headquartered in Hangzhou, Zhejiang, and supported by our large-scale production base in Sichuan, Laysun Magnetics is building a global service network to serve our clients. Our central engineering hub handles customization, prototyping, and electromagnetic modeling, while our logistics department ensures fast, multi-modal transport via air, sea, and rail.
Meeting standard benchmarks across key industrial sectors
Zhejiang Laysun Magnetics products are processed and quality-checked in compliance with international requirements. Our manufacturing facilities operate under API 6D, API 607, CE, ISO 9001, ISO 14001, ISO 18001, and IATF 16949 (TS) parameters.
Standard and custom-engineered geometries of NdFeB rare earth magnets
Technical guidance for manufacturing engineers and industrial buyers
Paramagnetic materials have a small positive magnetic susceptibility ($\chi > 0$), meaning they only exhibit magnetic properties in the presence of an externally applied magnetic field and do not retain magnetization once the field is removed. In contrast, ferromagnetic materials (such as NdFeB, Cobalt, or Iron) have strong magnetic moments that align spontaneously, showing hysteresis and retaining permanent magnetization when the external field is removed. Laysun Magnetics specializes in transitioning sintered alloys into highly oriented ferromagnetic structures using advanced electromagnetic field systems.
Because Sintered NdFeB is susceptible to oxidation, selecting the proper surface coating is critical. Standard plating options include Nickel-Copper-Nickel (Ni-Cu-Ni), Zinc (Zn), and Epoxy. For high-moisture or chemical environments, we recommend either rubber-coated magnets or customized epoxy finishes to prevent degradation. We also supply custom plastic-coated options for components like magnetic pin sensors and ID badges.
NdFeB magnets are sensitive to temperature. The Curie temperature (Tc) defines the point at which the magnet loses its permanent magnetic properties. We engineer custom grades (such as M, H, SH, UH, EH, AH) that utilize dysprosium or terbium to raise the maximum operating temperature up to 220°C, ensuring stability in demanding environments like automotive drivetrains and industrial motor assemblies.
Our standard manufacturing lead time ranges from 15 to 30 days, depending on geometry complexity and coating selection. Quality checks are integrated at every stage: from raw material assaying using ICP-OES spectrometer platforms, through demagnetization testing (B-H curve analysis), to 3D coordinate dimension verification. This thorough process ensures that each shipment is fully compliant before release.
Precision-made assemblies and specialized magnetic configurations for global exporters
Need specialized magnetic properties, tailored geometries, or advice on magnetization solutions? Contact our technical engineering team. We respond within 24 hours.
Laysun Magnetics
