Gold Member Since 2009
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Hangzhou Zhijiang Magnetics Co., Ltd.

Neodymium Magnet, Cheap Magnet, Unexpensive Magnet manufacturer / supplier in China, offering Neodymium Ring Magnet, N35~N52 Permanent NdFeB Magnet, Manufacture Customized Permanent AlNiCo Magnet with C Shape and so on.

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Neodymium Ring Magnet

FOB Price: Get Latest Price
Min. Order: 1,000 Pieces
Port: Shanghai, China
Production Capacity: 1000 Tons/Year
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Application: Electronic Products, Speaker Magnet, Industrial Magnet, Solenoid
  • Coating: Nickel
  • Transport Package: Cartons
  • HS Code: 8505111000
  • Shape: Ring
  • Grade: N40
  • Origin: China
Product Description
Quick Detail:
1.Density - 7.4-7.6 g/ cm3
2.Manufacturing process -sintering (most common), injection molding, and compression bonding.
3.Various shapes - blocks, bars, discs, rings, arc, segments, sectors, fan shape, cylinders, etc.
4.Prone to oxidation, plating is recommended ( Ni-CU-Ni, Zn,Au,Epoxy, etc)
Physical Properties of NdFeB Magnet
Curie Temperature (ºC)320
Max. Operating Temperature (ºC)220
Relative Permeability1.05
Flexural Strength (N/nm2)250
Compressive Strength (N/nm2)1100
Tensile Strength (N/nm2)75
Hardness (Hv)550-650
Temperature Coefficient of Br (%/ºC)-0.09~-0.12
Temperature Coefficient of Hcj (%/ºC)-0.50~-0.65
Sensors and switches 
Linear actuators  
Microphone assemblies    
Magnetic separators  
DC and servo motors   
Speaker Parts
Magnetic hooks 
Computer rigid disc drives  
Beam controls  
Intelligent toys  
Competitive Advantages The most powerful commercially produced magnetsHigher Maximum Energy Product ranging from 30MGOe to 52 MGOeVery high strength and relatively low costEasier to machine compared to Alnico and SmCo Magnets
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