Premium industrial magnets engineered to optimize the magnetic properties of silicon steel cores in high-performance motors
Silicon steel, widely termed as electrical steel, is a soft magnetic alloy that forms the bedrock of electrical power transmission, distribution systems, and high-frequency rotating motors. The introduction of silicon (typically ranging from 1.5% to 4.5%) into iron significantly enhances its electrical resistivity, reducing the primary source of operational energy loss: Eddy Current Losses.
The core magnetic properties of silicon steel—such as saturation magnetic flux density (Bs), permeability (μ), coercivity (Hc), and specific core loss (Pc)—determine the operational efficiency of electrical cores. High permeability ensures that maximum magnetic induction is reached with minimal magnetizing force, while lower coercivity prevents heat generation through hysteresis during alternating cycles.
Grain-Oriented (GO): Features a recrystallized texture favoring the rolling direction, making it ideal for stationary equipment like power transformers.
Non-Oriented (NO): Exhibits isotropic magnetic properties, essential for rotating machines like electric vehicle (EV) traction motors and generators where the magnetic vector changes continuously.
| Property Parameter | Influence on Performance |
|---|---|
| Hysteresis Loss (Ph) | Determines energy lost as heat during magnetization cycles. Mitigated by highly pure alloys and low crystal anisotropy. |
| Eddy Current Loss (Pe) | Proportional to the square of operating frequency and sheet thickness. Addressed via thin laminations and high silicon content. |
| Magnetic Permeability (μ) | Indicates the ease with which a magnetic flux is established. Higher permeability yields compact, efficient designs. |
| Saturation Induction (Bs) | The upper limit of magnetic flux density. High Bs permits reduced steel volume, lowering raw material requirements. |
Your Premier Global Partner in Advanced Rare Earth Magnetics & Soft Magnetic Core Synergy
Zhejiang Laysun Magnetics Ltd. is a national high-tech enterprise dedicated to researching, manufacturing, and exporting advanced magnetic assemblies. While our engineering roots lie deeply in high-performance permanent rare earth NdFeB magnets, we have evolved to provide macro-level stator and rotor component solutions.
Our engineering team understands that a motor is only as efficient as the interaction between its permanent magnets and its laminated silicon steel core. Therefore, we supply custom-machined NdFeB segments specifically configured to maximize the performance properties of grain-oriented and non-oriented electrical steel assemblies.
Innovating the integration of thin silicon steel laminations with high-coercivity rare earth magnets
To curb high-frequency eddy losses in next-generation high-speed EV motors, the market is shifting from 0.35mm sheets to ultra-thin 0.20mm and 0.15mm silicon steel, demanding high magnetic alignment accuracy from integrated magnets.
By diffusing heavy rare earths (Dysprosium, Terbium) along the grain boundaries of NdFeB magnets, we deliver high thermal stability, matching the heat resilience of silicon steel cores in heavy-duty powertrains.
Future assembly methods bypass traditional welding or interlocking in favor of specialized adhesive bonding of silicon steel sheets, maximizing magnet flux and maintaining core structure integrity.
Operating out of our manufacturing facility in Zhejiang & Sichuan, China, we bridge the gap between material research and global supply. Our magnets are custom formulated to ensure absolute compatibility with commercial silicon steel grades.
By optimizing the air gap magnetic field and matching the pole alignment with the magnetic properties of the stator's silicon steel laminations, we assist clients in reducing total motor volume, increasing output torque, and achieving energy-saving goals.
Unlocking ultimate efficiency where electrical steel laminations meet high-energy magnets
Headquartered in the high-tech hub of Hangzhou, Zhejiang Province, China, Laysun Magnetics has established a worldwide network of subsidiaries, warehousing centers, and logistical partnerships to serve customers across the Americas, Europe, and Southeast Asia.
Our products comply with critical international regulatory standards. We maintain strict certifications including API 6D, API 607, CE, ISO9001, ISO14001, ISO18001, and IATF 16949 (TS). If you require copies of our official test certificates or third-party laboratory verification of magnetic parameters, please get in touch with our team.
Technical explanations on the magnetic interplay between electrical steel and permanent magnetic fields
Custom NdFeB assemblies, high-capacity lifting magnets, and application-specific components
Laysun Magnetics
