Sintered NdFeB Magnet for Electric Motor
Sintered NdFeB magnets for electric motors are composed mainly of neodymium (Nd), iron (Fe), and boron (B), hence the name NdFeB. These magnets are manufactured through a sintering process, which involves compacting fine NdFeB powder in a die and then heating it to high temperatures until it consolidates into a solid magnet.
Specification
Sintered NdFeB Magnet for Electric Motor is a high-performance permanent magnet material designed for electric motor applications. It is made of neodymium (Nd), iron (Fe) and boron (B) elements through precise alloy ratios and powder metallurgy sintering process. During the sintering process, the alloy powders of neodymium, iron and boron are fused at high temperatures to form a solid magnet. The precise ratio of alloy elements and sintering process ensure the uniformity of the crystal structure inside the magnet.
|
Material |
NdFeB |
|
Grade |
N35H~N48H |
|
Shape |
Block, Disc, Arc |
|
Plating |
Ni, Zinc or Black Epoxy |
|
Magnetized |
Through the thickness |
|
Export port |
Xiamen China |
Advantages
High magnetic energy density
Sintered NdFeB magnets are made of neodymium, iron, boron and other elements through precise proportioning and sintering process, with very high magnetic energy product (BHmax), usually between N35H and N48H grades, and the magnetic energy product can reach 35MGOe to 48MGOe. High magnetic energy product is achieved by precisely controlling the alloy composition and crystal structure, ensuring that the magnet provides strong magnetic output in a small volume, adapting to the needs of motors for compact and efficient magnetic fields.
Optimized internal microstructure
Sintered NdFeB magnets use advanced powder metallurgy technology in the production process to control the arrangement direction of magnetic grains, ensure that the microstructure inside the magnet is highly uniform, and increase the magnet's anti-demagnetization ability to ensure that it maintains a strong magnetic field output during long-term use.
Precise shape design and customization
The magnet supports a variety of shape designs, including block, disc and arc, etc., to meet the specific design requirements of different motors. Through precise manufacturing processes, sintered NdFeB magnets are able to provide highly accurate size and shape, reduce installation errors, and ensure good matching with other components in the motor, thereby improving overall operating efficiency.
High temperature stability
Sintered NdFeB magnets have high thermal stability, especially magnets between N35H and N48H grades, which can continue to work stably in environments up to 150°C. Its high Curie temperature prevents it from losing its magnetism when the motor runs at high temperatures for a long time, ensuring efficient operation of the motor under various working conditions.
Magnetic Properties for NdFeB N48H
|
Grade |
Br mt(KG) |
Hcb Koe(KA/m) |
iHc Koe(KA/m) |
(BH)max KJ/m3 (MGOe) |
TW℃ |
|
35H |
1170-1210(11.7-12.1) |
≧11.0(≧876) |
≧17(≧1353) |
263-287(33-36) |
120 |
|
38H |
1210-1250(12.1-12.5) |
≧11.2(≧890) |
≧17(≧1353) |
287-310(36-39) |
120 |
|
40H |
1250-1280(12.5-12.8) |
≧11.5(≧915) |
≧17(≧1353) |
302-326(38-41) |
120 |
|
42H |
1280-1320(12.8-13.2) |
≧12.0(≧955) |
≧17(≧1353) |
318-342(40-43) |
120 |
|
45H |
1320-1380(13.2-13.8) |
≧12.0(≧955) |
≧17(≧1353) |
335-366(42-46) |
120 |
|
48H |
1370-1430(13.7-14.3) |
≧12.5(≧956) |
≧17(≧1353) |
366-390(46-49) |
120 |
Magnetization Direction
How to ship magnets to overseas countries safely
First, use sturdy packaging materials to pack the magnets.
Second, ensure that the magnets are properly separated to prevent them from attracting each other and potentially causing damage during shipping.
Third, be aware of any regulations regarding the shipment of magnets. Some countries have restrictions on shipping magnets due to safety concerns.
Therefore, we can choose to ship them by air or sea.
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