- Model NO.: ET-49
- Shape: Ring
- Grade: as Customer Required
- Composition: NdFeB Magnet
- Work Temp: -20 ~ 80oc
- Transport Package: Carton
- Origin: China, Ningbo
- Application: Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
- Coating: Nickel
- Type: Permanent
- Processing Tolerance: -0.05 ~ +0.05mm
- Trademark: eastar
- Specification: N35-N52
- HS Code:
Materials: Sintered NdFeB / Neodymium magnet
Surface treatment: Ni, Ni + Cu + Ni, Zn, epoxy, gold, etc.
Applications of neodymium magnets:
1) Servomotor, step motor, DC motor and linear motor
2) Loudspeaker, headphone, earphone and microphones
3) Holding system equipment
4) Medical facility
5) Sound device
6) Wind power
7) VCM, MRI
8) Mobile accessory
9) Research and development, as well as many other applications
Magnet neodymium iron boron
1. Arc or rectangular magnet.
2. Zinc coating to protect the surface.
3. Used for electric motors
1. Magnet: Neodymium magnet
2. Characteristics:
Super strong Br resident induction.
Excellent demagnetization resistance capability.
3. Surface Treatment Method:
Black Nickel, Chroming, Copper, Epoxy, Gold, Nickel, Nickel+Epoxy, Nickel+Sn, Passivation, Zinc, phosphating
4. Applications of Neodymium Magnets:
AC Motors, DC Motors, servo motors, step motors
Computer rigid disc drives
Magnetic Separators
Magnetic resonance imaging
Speakers & earphones
Medical care machines
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| Parameter | unit | Standard Data |
| Curie Temperature(Tc) | ºC | 310-380 |
| Maximum Operating Temperature(Tw) | ºC | 80-200 |
| Hardness | Hv | 620 |
| Electrical Resistivity | Ω.CM | 1.8X10-4Â ~2.0X10-4 |
| Density(D) | g/cm3 | 7.5~7.65 |
| Recoil Permeability | µ rec | 1.05 |
| Magnetization Field Strength(Hs) | KOe | >Â Â 30 |
| KA/m | >Â 2400 | |
| Bending Strength | Mpa | 295~345 |
| Temp. Coefficient of Br (aBr) | %/ºC | -0.11~ -0.12 |
| Temp Coefficient of Hcj (aHcj) | %/ºC | -0.5~ -0.7 |
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