N48 Big Size Zinc Coating Ring Neodymium Magnet

  • Model NO.: SC-002
  • Shape: Ring
  • Grade: N48
  • Composition: NdFeB Magnet
  • Working Temp: -20ºC ~ 80ºC
  • Transport Package: Carton
  • Origin: China, Ningbo
  • Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
  • Coating: Zinc
  • Type: Permanent
  • Size: as Client Need
  • Trademark: eastar
  • Specification: from35-52
  • HS Code:
Permanent Neodymium Ring Magnet
1. Ring magnet.
2. Zinc coating to protect the surface(Nickel, epoxy, silver, gold...optional.)
3. Used for electric motors, earphones, speakers...

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
 
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
 

We own a professional QC team and advanced test and inspection equipment to ensure high-quality products, and strict procedure  to ensure timely delivery and perfect after-sales service.

N48 Big Size Zinc Coating Ring Neodymium Magnet
 

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