Neodymium permanent Disc Ring magnets:
1. Materials: Sintered NdFeB / Neodymium magnet
2. Magnet grade:N35,N38,N40....N52, H, SH, UH, EHseries for optional.
3.Surface treatment: Ni, Ni + Cu + Ni, Zn, epoxy, gold, etc.
4. Size: From diameter 1mm up to 80mm, thickness from 0.5mm up to 30mm.
5. Processing tolerance: +-0.05mm
Magnet Parameter data sheet:
| Parameter | unit | Standard Data |
| Curie Temperature(Tc) | ºC | 310-380 |
| Maximum Operating Temperature(Tw) | ºC | 80-200 |
| Hardness | Hv | 620 |
| Electrical Resistivity | Ω.CM | 1.8X10-4 ~2.0X10-4 |
| Density(D) | g/cm3 | 7.5~7.65 |
| Recoil Permeability | µ rec | 1.05 |
| Magnetization Field Strength(Hs) | KOe | > 30 |
| KA/m | > 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 |
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
TypeResidual lndurtion
Br(KGs)Coereive Foree
BHe(KOe)Intrinsic coereive
Force iGe(KOe)Squareness
(Hk/iHe)Max. Energy Product
(BH)max. (MGOe)Max. Openating
Temp. (C)Density