N38 Nickel Plating NdFeB Ring Magnet for High Quality Speaker

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  • Model NO.: N35-N52/ D037
  • Shape: as Clients Requirments
  • Grade: N35n52
  • Composition: NdFeB Magnet
  • Processing Tolerance: -0.05~ +0.05mm
  • Trademark: eastar
  • Specification: from35-52
  • HS Code: 8505111000
  • Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
  • Coating: as Clients Requirments Nickel/Zinc...
  • Type: Permanent Magnet
  • Size: D50X15
  • Work Temperature: -30oc ~ +80oc
  • Transport Package: Carton
  • Origin: China, Ningbo
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

Clamp meter

Ningbo Kyson Cool Electronic Technology Co., Ltd. , https://www.kysonrefrigeration.com