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Customized Arc Shaped Bonded Neodymium Permanent Magnet For Brushless Micromotor

Bonded NdFeB Arc Magent:
1.Magnetizing: ring can be multi-polar magnetization
2.high temperature, Tw = 160 ℃;
3.It's size precision better than sintered ndfeb magnet
4.Painted: Surface is treated by epoxy coating or nickel-plating to prevent corrosion
5.used for step motor, brushless motors, dc motors, start motor, DVD spindle motor and cd-rom drives
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  • DunBen

Bonded Neodymium Arc Magnets 

Detailed Info

Bonded NdFeB magnets are produced by binding rapid-quenching Nd-Fe-B powders which is are mixed with plastic resin to form a magnet by compression molding with epoxy and injection molding with nylon.

The compression molded magnets are limited for simple geometries, but they can offer higher magnetic strength than injection molded magnets because of relative high density.

Bonded NdFeB have lower energy properties compared with sintered NdFeB. However, it can be produced with high dimension accuracy and shape complexity.Normally, there is no finishing required for bonded NdFeB. They are suitable for making small volume magnet with complex shape .

Bonded NdFeB magnets have excellent stability,evenness of magnetic flux density ,strong anti-demagnetization and strong anti-corrosion of surface coating. the magnet surfaces are treated by epoxy coating or nickel plating.

Applications:
They are widely used for DC non-brush motor of automotive, stepping motor, lighter, sensor, HDD,CD-ROM and VCD/DVD driver, Printer, duplicator, scanner, camera, electric tools and mobile phone etc.

Typical Magnetic Performance For Bonded NdFeB Magent(Room Temperature)
 
Grade Br HcB HcJ (BH)max Tw. P
[T] [GS] [KA/m] [Oe] [KA/m] [Oe] [KJ/m3] [MGOe] [℃] g/cm3
DBM-2 3.0-4.0 300-400 160-240 2.0-3.0 480-680 6.0-8.6 16-24 2.0-3.0 120 4.5-6.0
DBM-4 4.0-5.0 400-500 240-320 3.0-4.0 560-720 7.0-9.0 32-44 4.0-5.5 120 5.2-6.0
DBM-6 5.0-6.0 500-600 320-400 4.0-5.0 480-640 6.0-8.0 48-60 6.0-7.5 120 5.5-6.0
DBM-8 6.0-6.8 600-680 360-440 4.5-5.5 640-800 8.0-10.0 60-72 7.5-9.0 150 5.8-6.1
DBM-8H 6.0-6.5 600-650 400-480 5.0-6.0 1120-1280 14-16.0 60-68 7.5-8.5 160 5.8-6.2
DBM-8L 6.5-6.8 650-680 400-480 5.0-6.0 880-1120 11.0-14.0 64-72 8.0-9.0 160 5.8-6.2
DBM-9 6.0-6.8 600-680 400-480 5.0-6.0 640-800 8.0-10.0 68-72 8.5-9.0 150 5.8-6.2
DBM-10 6.8-7.3 680-730 400-480 5.0-6.0 640-800 8.0-10.0 76-84 9.5-10.5 150 5.8-6.2
DBM-12 7.1-7.5 710-750 440-520 5.5-6.5 720-800 9.0-10.0 84-96 10.5-12.0 150 6.0-6.2
DBM-12L 7.2-7.6 720-760 400-480 5.0-6.0 480-640 6.0-8.0 84-96 10.5-12.0 140 6.0-6.2
BONDED FLOW CHART
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  Hang Zhou XiaoShan Dunben Magnet  Co., Ltd 
 1702, Unit 2, Building 1, Dacheng Mingzuo, Shiixn Road, Xiaoshan, Hangzhou, Zhejiang, China
  86-571-82750965 
  86-571-82751287
 wang@dbmagnet.com
 

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