Explore our foundational selection of high-performance permanent and non-permanent magnetic solutions engineered to satisfy rigorous precision standards in global modern automation and smart electrification markets.
In the modern era of high-frequency power electronics, precision automation, and green transportation, magnetic materials serve as the primary drivers of mechanical-to-electrical kinetic energy conversion. Historically, industrial solutions relied heavily on permanent magnetic systems. However, the rise of smart technologies and dynamic controls has triggered a massive structural migration toward non-permanent magnetic systems, also referred to as temporary magnets, electromagnets, and soft magnetic cores (such as silicon iron, ferrites, and nanocrystalline alloys).
Unlike permanent magnets, which maintain a constant, unalterable magnetic flux, non-permanent magnetic configurations allow engineers to modulate, switch, or entirely disable magnetic fields via electric currents. The core materials that govern these configurations possess exceptionally low coercivity and high permeability, enabling high-speed magnetization and demagnetization with minimal hysteresis loss. This makes them ideal for voice coil motors, solenoid valves, automotive power steering assemblies, and electronic switches.
Understanding the distinction between hard (permanent) and soft (non-permanent/temporary) magnetic components is critical for global procurement managers and structural engineering teams:
Welcome to Zhejiang Laysun Magnetics Ltd., your reliable global partner in high-performance magnetic assemblies, soft magnetic components, and rare earth NdFeB permanent magnets. Established in 1999, we have transitioned from a localized manufacturing facility into a national high-tech enterprise. Our sprawling 100,000-square-meter facility in Suining, Sichuan, serves as the production hub where we synthesize advanced materials for global clients.
Equipped with state-of-the-art vacuum induction melting furnaces, inert-gas jet mills, and advanced grain boundary diffusion systems, we produce 5,000 tons of high-grade magnetic products annually. We support critical components in automotive systems, medical imaging, high-efficiency industrial motors, and consumer electronics.
The magnetic manufacturing sector is undergoing rapid transformation due to changes in regulatory policies, material science, and global supply chain dynamics. Below are the primary structural trends influencing magnetic sourcing and applications worldwide:
The transition to electric drivetrains, solar inverters, and high-frequency smart grids has accelerated the demand for soft magnetic materials. These components are critical for minimizing core losses at high frequencies, driving the development of specialized microcrystalline alloys.
Robotic joints and actuators require quick-response electromagnets and variable magnetic controllers. Using temporary magnetic cores allows robot control systems to switch magnetic force dynamically, improving safety and reducing power consumption.
From conflict-free sourcing of heavy rare earths like Dysprosium (Dy) and Terbium (Tb) to carbon-neutral production, global industrial buyers now prioritize suppliers with certified green supply chains and transparent recycling initiatives.
For procurement departments in major automotive, aerospace, and medical sectors, selecting a magnetic supplier goes beyond comparing pricing lists. A structured technical decision matrix is essential to manage long-term operational risks:
| Magnetic Core Parameter | Standard Commercial Spec | Laysun Advanced Class Spec | Industrial Application Relevance |
|---|---|---|---|
| Intrinsic Coercivity (Hcj) | ≥ 12 kOe | ≥ 25 - 35 kOe | Ensures thermal stability and demagnetization resistance in EV traction motors. |
| Reversible Temp. Coeff. (αBr) | -0.12 %/°C | -0.09 %/°C | Minimizes magnetic flux variations under variable operating temperatures. |
| Hysteresis Loss (Ph) | 1.5 W/kg (at 50Hz) | ≤ 0.85 W/kg (at 50Hz) | Improves efficiency in soft magnetic cores and AC electromagnetic assemblies. |
| Grain Boundary Diffusion (GBD) | Not available/optional | Standard Integration (Dy/Tb) | Reduces heavy rare earth content while maintaining high thermal performance. |
Modern industries require targeted, application-specific magnetic engineering. At Zhejiang Laysun Magnetics, we provide tailored solutions that balance mechanical design, magnetic circuit layout, and thermal constraints:
Our soft magnetic cores and precise assemblies enable high-speed actuators and robotic grippers to respond quickly and reliably to control inputs.
We supply high-permeability stator cores and lightweight NdFeB permanent magnets to optimize power-to-weight ratios in brushless outrunner motors.
Our custom permanent magnets and motor cores are engineered to meet the demanding requirements of automotive traction motors, EPS assemblies, and oil pumps.
We manufacture impact-resistant, high-temperature magnetic components designed to handle the continuous start-stop cycles of professional-grade power tools.
Our magnetic components support voice coil motors (VCM) and integrated magnetic rings, helping consumer brands maintain compact form factors in modern hardware.
From smart inverter compressors to domestic air filtration systems, our magnets help reduce energy consumption and operational noise in modern home devices.
The requirements for magnetic performance continue to grow. To keep pace, Zhejiang Laysun Magnetics runs a dedicated research program focused on structural stability, resource efficiency, and advanced coating technologies:
By diffusing Dysprosium (Dy) or Terbium (Tb) through the sintered NdFeB matrix, we improve thermal resistance without reducing the material's magnetic output. This method also reduces reliance on volatile heavy rare earth elements.
For harsh operating conditions, we apply advanced surface treatments like chemical vapor deposition (CVD), multilayer epoxy, or electroless nickel-copper-nickel (NiCuNi). These coatings protect components against corrosion and chemical degradation.
Using automated multi-axis grinding systems and wire electrical discharge machining (EDM), we can supply complex shapes like radial rings and segmented arcs with dimensional tolerances as tight as ±0.01mm.
Below is our secondary catalog of precision-engineered magnetic components, showcasing the range of structural shapes, coatings, and assembly configurations we support for global industries.
Manufacturing high-grade magnetic solutions requires strict compliance with international industrial standards. We run systematic quality audits to ensure our materials meet or exceed global performance and environmental benchmarks.
We maintain comprehensive documentation for our manufacturing lines, including API 6D, API 607, CE, ISO9001, ISO14001, and ISO18001 certifications. For copies of our certification reports, please contact our quality department.
Here are answers to common technical and logistical questions we receive from global procurement and engineering teams.
Laysun Magnetics