Explore our core high-performance neodymium and permanent magnetic assemblies designed for precision engineering applications.
Remanent Magnetization (Remanence, $B_r$) is the magnetic induction remaining in a magnetic material after the external magnetizing field is reduced to zero. In heavy industrial, automotive, and technological manufacturing, optimizing and controlling the types of remanent magnetization is critical. It determines the torque profile of electric vehicle motors, the lifting limit of magnetic lifters, and the signal stability in high-end consumer electronics.
As a premier OEM manufacturer, Zhejiang Laysun Magnetics Ltd. specializes in tailoring the magnetic properties of rare earth NdFeB materials. We engineer products to achieve precise remanence values (ranging from 1.0T to 1.45T+) depending on the specific application environment, thermal stresses, and required coercivity ($H_{cj}$).
Magnetic materials demonstrate different forms of remanence depending on their microstructure, chemical compositions, and how they are processed. The primary types of remanent magnetization categorized in modern physics and manufacturing include:
Acquired at a constant temperature by applying and then removing a direct current magnetic field. This represents the basic magnetization method utilized in manufacturing standard permanent NdFeB blocks and rings.
Acquired as a magnetic material cools below its Curie Temperature ($T_c$) in the presence of an external magnetic field. Essential for understanding thermal stability profiles in high-temperature applications like automotive EPS and wind turbines.
Anisotropic magnets (aligned in a preferred direction during pressing) offer substantially higher remanence ($B_r$) than isotropic equivalents, making them the standard choice for high-power electric motors.
| Grade Family | Typical Remanence ($B_r$) | Intrinsic Coercivity ($H_{cj}$) | Max Operating Temperature |
|---|---|---|---|
| N35 - N52 (Standard) | 1.17 - 1.48 Tesla | ≥ 12 kOe | 80°C |
| N35M - N50M (Medium) | 1.17 - 1.45 Tesla | ≥ 14 kOe | 100°C |
| N33H - N48H (High Temp) | 1.13 - 1.43 Tesla | ≥ 17 kOe | 120°C |
| N30SH - N45SH (Super High) | 1.08 - 1.39 Tesla | ≥ 20 kOe | 150°C |
| N28UH - N40UH (Ultra High) | 1.04 - 1.30 Tesla | ≥ 25 kOe | 180°C |
The international supply chain for permanent magnets is currently transitioning toward optimized energy-saving configurations. As regulatory environments enforce high-efficiency standards (such as IE4 and IE5 motor guidelines in Europe), industrial engineering firms must deploy optimized magnetic configurations with precise remanence targets.
Traction motors in modern electric vehicles demand permanent magnets that maintain high remanent magnetization even under severe thermal loads. Our specialized NdFeB segments undergo advanced grain boundary diffusion (GBD) processes to retain high $B_r$ while optimizing heavy rare earth usage.
In micro-servos and multi-axis cobots, weight-to-torque ratios are critical. Utilizing high-remanence cylinders and ring magnets guarantees that robotic arms execute rapid, precise maneuvers with minimal power draw.
Welcome to Zhejiang Laysun Magnetics Ltd., 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.
Founded at the turn of the millennium, Zhejiang Laysun Magnetics Ltd. has rapidly evolved from a visionary startup to an industry pacesetter. Our state-of-the-art factory, sprawling across 100,000 square meters in the vibrant city of Suining, Sichuan, is the heart of our operations. Here, our dedicated team of 300 employees works tirelessly to produce an impressive 5,000 tons of rare earth magnets annually.
Specializing in the development, research, production, and sales of high-performance rare earth NdFeB magnets, we cater to a diverse range of applications. Our magnets are integral to various sectors, including electric vehicles, industrial motors, computers, and consumer electronics, enhancing the efficiency and performance of these technologies.
Founded in 1999, Laysun Magnetics has over two decades of experience in the industry. This long-standing presence reflects stability, reliability, and deep expertise.
As a national high-tech company, we possess advanced manufacturing capabilities, keeping us at the forefront of technical innovations.
With a facility covering 100,000 m² and an annual production capacity of 5,000 tons, we efficiently meet large-scale global demands.
Our NdFeB magnets are utilized across diverse industries, from automotive EPS and drone motors to mobile consumer electronics.
Our relentless pursuit of technological advancement is not just about staying ahead of the curve; it's about setting new standards in the magnetic field. We are deeply committed to exploring and harnessing the potential of rare earth magnets, ensuring that our products not only serve current needs but also pave the way for future innovations.
At Laysun Magnetics, our ethos is built on four pillars - Quality, Credibility, Technology, and Innovation. These values are the cornerstones of our operations, guiding us in delivering products that not only meet but exceed the expectations of our clients.
Our structured classification comprises diverse magnetic topologies optimized for specific magnetization demands.
Our magnet solutions power core technologies globally, from heavy industrial motors to high-frequency communication gadgets.
Providing high-precision micro magnets for servo motors, joints, and robotic sensors requiring stable magnetic output.
Ultra-lightweight, high-remanence NdFeB magnets that maximize brushless motor efficiency and flight times.
Supplying specialized high-coercivity, high-remanence NdFeB segments capable of operating in high-thermal environments.
Durable, high-flux density magnets engineered to endure massive mechanical stress and prolonged vibration.
Micro-engineered magnetic rings and plates for modern smart devices, acoustics, and wireless chargers.
Powering inverter compressors and brushless DC motors in eco-friendly household appliances.
For global OEMs, compliance is non-negotiable. Zhejiang Laysun Magnetics Ltd. meets strict quality parameters for international trade, production, and environmental safety. We provide full traceability and certifications for our raw materials, ensuring that our products align with your regional regulatory requirements.
Supported Industry Protocols: API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, IATF 16949 / TS16949.
If you require physical verification papers or specific test reports, please contact our export compliance department for immediate support.
We operate worldwide logistical channels to guarantee timely transport, warehousing options, and multi-modal freight delivery directly to your processing plants across the Americas, Europe, and Southeast Asia.
To address global supply risks and pricing fluctuations associated with heavy rare earth elements (HREEs) like Dysprosium (Dy) and Terbium (Tb), Laysun Magnetics' R&D division has established a clear technical progression path:
By diffusing heavy rare earths directly along grain boundaries rather than throughout the entire matrix, we increase coercivity ($H_{cj}$) without reducing remanence ($B_r$). This enables NdFeB to function reliably at temperatures up to 200°C while using 70% less Dy/Tb.
We are actively developing commercial-grade NdFeB magnets that require zero heavy rare earths. This ensures price stability and compliance with strict environmental mandates for next-generation green technologies.
Laysun is building processes to reclaim post-industrial and end-of-life neodymium components, reprocessing them into high-performance sintered magnets to support circular manufacturing initiatives.
Technical guidelines and procurement answers directly from our engineering team.
Browse our complete product range including blocks, discs, rings, and assemblies manufactured to global standards.
Discuss your magnetization requirements, dimensional designs, or thermal limits with our technical engineering team. Get a comprehensive quote and performance simulation parameters within 24 hours.
For inquiries about our products or custom OEM parameters, please contact us. We will get back to you within 24 hours.
Laysun Magnetics
