NdFeB Laminated Magnets
What Are Laminated Magnets?
Laminated Magnets are a specialized type of rare-earth permanent magnets composed of multiple thin magnetic layers separated by insulating layers. This design significantly reduces eddy current losses, enhancing performance in high-frequency applications. Laminated magnets are particularly well-suited for high-efficiency motors, electric vehicles (EVs), aerospace, and industrial automation.
Why Choose Laminated Magnets?
In high-speed and high-frequency environments, traditional solid magnets suffer from excessive eddy current losses, leading to heat generation and decreased efficiency. The layered structure of Laminated Magnets, combined with insulation barriers, effectively disrupts eddy current flow, ensuring higher efficiency and stability in motor operation.
Laminated Magnets vs. Traditional Magnets
| Feature | Laminated Magnets (Laminated Magnets) |
Traditional magnets (Solid Magnets) |
|---|---|---|
| Eddy Current Losses | Low (ideal for high-frequency applications) |
High (causes energy loss) |
| Thermal Performance | Excellent (suitable for high-temperature environments) |
Standard (prone to performance loss at high temperatures) |
| Efficiency | High (boosts motor and generator performance) |
Standard |
| Cost | Higher (complex manufacturing process) |
Lower (simpler production process) |
Technical Advantages of Laminated Magnets
1.Reduced Eddy Current Losses – The multi-layer structure disrupts current paths, minimizing energy waste and boosting motor efficiency.
2.Higher Motor Efficiency – Optimized power output and improved performance in high-speed operations.
3.Reduced Heat Generation and Enhanced Lifespan – Reduced internal heat accumulation extends the lifespan of both motors and magnets.
4.Increased Power Density – Ideal for compact, high-power-density motor designs, making them perfect for EVs and aerospace applications.
5.Industry-Standard Compliance – Laminated magnet technology aligns with new energy sector standards, widely adopted in high-performance motor designs.
Applications of Laminated Magnets
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EV Motors – High-speed, high-efficiency drive systems for electric vehicles.
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Wind Turbines – Reduced energy losses, improving power generation efficiency.
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Aerospace – Used in high-frequency induction equipment and precision navigation systems.
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Advanced Sensors – Lower electromagnetic interference for enhanced measurement accuracy.
Company information
Our company is a 20-year professional manufacturer of high-performance sintered NdFeB neodymium magnets, certified to ISO 9001, IATF 16949, CE and RoHS. With 13 production machines and full in-house quality traceability, we supply N35-N52 grade magnets for automotive, motor, consumer electronics and industrial applications, offering drawing-based customization and serving buyers in North America, Western Europe and Eastern Europe.
FAQ
Q1: What is the typical thickness of the insulation layer between segments?
We maintain a very thin insulation layer, typically between 0.02mm and 0.05mm. This ensures high electrical resistance while maintaining a high magnetic volume ratio.
Q2: Can you customize the number of segments and the magnet grade?
Yes, we offer full customization. We can segment the magnets into 2 to 20+ layers depending on your design, and provide grades from N35 to N52 with various temperature ratings (SH, UH, EH).
Q3: How do you ensure the bonding strength of the segments?
We use industrial-grade structural adhesives that undergo rigorous shear strength testing. The magnets are designed to withstand high centrifugal forces in high-speed rotors.
Q4: What elements affect the magnet price?
1. Shape and size : cylinder (DxH), cuboids(LxWxH) ,cubes, ring(ODxIDxH) belong to regular shape , arc magnets are popular used in motors or generators , before quotation and batch production , we have to confirm the technical drawing and samples, other irregular shape magnets are also can be made according to request. 2: Grade (Magnetic Property) 3: Plating(Coating) 4:Magnetizing Orientation 5:Quantity
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