Epoxy Coating Ring Compression Bonded NdFeB Rotor Magnets W/ 8 Poles Specifications:
Dimensions: Diameter 35 mm x Inner Dia 29 mm x 45mm thickness by Customized design drawing
Tolerances: +/-0.1 mm
Grade: BPN8
Material: Compression Bonded NdFeB
Plating/Coating: black epoxy
Magnetization Direction: Diametrically (Poles on the curves)
Max Operating Temp: 160ºC (Degree Celsius)
Other: All magnets passed QC(Br. Flux.Dimensions) and 24-Hour Salt Spray Test.
Feel free to contact us for the inventory if you need the product urgently.
Magnet Application: Motors, Wind Power, Sensors, Computers and Peripherals, Magnetic Assemblies, Automotive, Motion Control, Aerospace, Research and Development, Communications, Medical Device and Diagnostics, Home appliance, Other magnetic applications or you can find new application according to your design.
Compression Bonded NdFeb magnet introduction:
Higher magnetic performance than injection bonded NdFeb.
Br:350—8000Gs,Hci:4000—16000e,BHmax；3—12MGOe
Higher corrosion resistant than injection bonded NdFeb Magnet,Salt spray testing:≥75hours.
Working temperature.The maximum working temperature:200 degree C.
More flexible magnetizing patern than sintered NdFeb magnet.Multi-poles on OD, ID&end face(along axial),radial and Diameter cross magnetization,helix and other special magnetizing special magnetizing pattern.
Products are widely used in the information industry, defense industry, automobile industry, household appliances, instrumentation, medical equipment and magnetic machinery and other fields of national economy.
Bonded Neodymium magnets are made of the powerful Nd-Fe-B material mixed into an epoxy binder. The mix is appropriately 97 vol% magnet material to 3 vol% epoxy. The manufacturing process involves combining Nd-Fe-B powder with an epoxy binder and compressing the mixture in a press and curing the part in an oven. Permanent Radiation Oriented Ring Magnets
Powerful Bonded Nd-Fe-B Cylindrical Ring Magnet
Advantages:
1.Produced with high efficiency, stability and repeatability.
2.Magnet and other part may form together in one step.
3.Free choice of magnetizing direction-especially for multi-polar applications.
4.High dimensional accuracy-large quantity applications with minimum post-press machining.
5.Thin-wall ring and complex shape magnets.
6.High resistance to corrosion. 10-Poles Bonded NdFeB Diametrically Ring Magnet
Typical Magnetic Properties of Compression Bonded NdFeB Magnets
| Grade1 | Br Remanence |
Hcb Coercive Force |
Hcj IntrinsicCoercivity |
Maximum Energy Product (BH)max |
Application |
| BPN4 | 400~500mT | 240~360kA/m | 640~800kA/m | 29~48kJ/m3 | Holder Stationary |
| 4000~5000Gs | 3000~4500 Oe | 8000~10000 Oe | 3.6~6.0MGOe | ||
| BPN6 | 600~700mT | 360~440kA/m | 640~800kA/m | 48~64kJ/m3 | Holder Micro-motor |
| 6000~7000Gs | 4500~5500 Oe | 8000~10000 Oe | 6.0~8.0MGOe | ||
| BPN8 | 600~700mT | 400~480kA/m | 640~800kA/m | 60~72kJ/m3 | |
| 6000~7000Gs | 5000~6000 Oe | 8000~11000 Oe | 7.5~9.0MGOe | ||
| BPN8H | 560~650mT | 400~480kA/m | 960~1200kA/m | 60~72kJ/m3 | |
| 5600~6500Gs | 5000~6000 Oe | 12000~15000 Oe | 7.5~9.0MGOe | ||
| BPN10 | 650~750mT | 400~480kA/m | 640~800kA/m | 72~88kJ/m3 | |
| 6500~7500Gs | 5000~6000 Oe | 8000~10000 Oe | 9.0~11.0MGOe | ||
| BPN12 | 650~750mT | 400~480kA/m | 640~800kA/m | 80~96kJ/m3 | |
| 6500~7500Gs | 5000~6000 Oe | 8000~10000 Oe | 10.0~12.0MGOe |
Typical Physical Characteristics of Compression Bonded NdFeB Magnets
| Grade Unit |
Density g/cm3 |
Hardness HRB HRB |
Temperature Coefficient %/°C |
curie Temperature °C |
Max Operation Temperature °C |
Saturated Magnetic Field kA/m |
Thickness Of Coating μm |
| BPN4 | 6.0~6.5 | 40~45 | -0.11 | ≥350 | 160 | 1600 | 5~30 |
| BPN6 | 6.0~6.2 | 40~45 | -0.11 | ≥350 | 160 | 1600 | 5~30 |
| BPN8 | 6.0~6.2 | 35~38 | -0.11 | ≥350 | 160 | 1600 | 5~30 |
| BPN8H | 6.0~6.2 | 35~38 | -0.12 | ≥300 | 160 | 2400 | 5~30 |
| BPN10 | 6.0~6.2 | 35~38 | -0.10 | ≥350 | 160 | 1600 | 5~30 |
| BPN12 | 6.1~6.4 | 35~38 | -0.10 | ≥350 | 160 | 1600 | 5~30 |
Note: The coating material can be chosen according to customer’s demand.
Compression Bonded Neo Ring Magnet Magnetization 8 Poles
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