Gold Member Since 2012
Audited Supplier
Ningbo Hui Hesing Advanced Tech Material Co., Ltd.

NdFeB Ring Magnets, Neodymium Magnet, Ring Magnet manufacturer / supplier in China, offering Hifi Speaker Magnet NdFeB Ring, Permanent Sintered Hard Ferrite Block Magnet, Permanent NdFeB Sintered Neodymium Block Magnet N45 and so on.

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Supplier Homepage Product Neodymium Magnet Hifi Speaker Magnet NdFeB Ring

Hifi Speaker Magnet NdFeB Ring

Purchase Qty.:
(Pieces)
100-999 1,000+
FOB Unit Price: US $0.69 US $0.65
Purchase Qty. (Pieces) FOB Unit Price
100-999 US $0.69
1,000+ US $0.65
Get Latest Price
Production Capacity: 100ton Per Month
Transport Package: Standard Export Packing for Air or Sea Shipping
Payment Terms: L/C, T/T, Western Union

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Neodymium Magnet
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Basic Info
  • Model NO.: NdFeB Ring Magnet D35
  • Shape: Ring
  • Grade: N50
  • Composition: Neodymium Magnet
  • Plating: Nickle
  • Business Type: Manufacturer/Factory
  • R&D Capacity: Owned Brand/OEM/ODM
  • Trademark: HHS MAG
  • HS Code: 85051190
  • Application: Speaker Magnet, Sound Device
  • Coating: Nickel
  • Type: Permanent
  • Model No: NdFeB Ring Magnet D35
  • Category: Sintered
  • Member Type: Gold Member
  • City: Ningbo
  • Origin: Ningbo, China
Product Description
Product Description

 

Product name:Powerful china Permanent magnet manufacture sintered ndfeb magnet
Shape:Cylinder/Rod/arc  Disc, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes  are available, Customized shapes for Sintered NdFeB  Magnet are also available)
Direction of magnetisation:Through the thickness or through the diameter
Type of coating:  Nickle, Ni-Cu-Ni, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and so on.  
Grade:N35-N52; N35M-N50M; N35H-N48H; N35SH-N45SH;N30UH-N40UH; N30EH-N38EH
Tolerance in size:+/-0.10mm
 

Magnetic Characteristics and Physical Properties of Sintered NdFeB
GradeRemanenceCoercive ForceIntrinsic Coercive forceMax Energy ProductHighest Work temperature
BrHcbHci(BH) max
TKGsKOeKA/mKOeKA/mMGOeKJ/mºC
N351.16-1.2211.6-12.2118761295533-36263-28780
N381.22-1.2712.2-12.7118761295536-39287-31080
N401.25-1.3112.5-1.31118761295538-41303-32680
N421.28-1.3412.8-13.4118761295540-43318-34280
N451.32-1.3813.2-13.8118761295543-46342-36680
N481.37-14.313.7-14.310.583611.591546-49366-39080
N501.40-1.4614.0-14.610.583611.591548-51382-40680
N521.43-1.4914.3-14.910.583611.591550-53398-42280
N30M1.08-1.1410.8-11.49.878014111428-31223-247100
N33M1.14-1.1811.4-11.810.382014111431-33247-263100
N35M1.6-1.2211.6-12.210.684514111433-36263-287100
N38M1.23-1.2712.3-12.71187614111438-41303-326100
N40M1.25-1.3112.5-13.111.591214111438-41303-326100
N42M1.28-1.3412.8-13.411.893814111440-43318-342100
N45M1.32-1.3813.2-13.812.297614111443-46342-366100
N48M1.37-1.4313.7-14.312.7101213.5107546-49366-390100
N50M1.40-1.4614.0-14.613103513.5107548-51382-406100
N35H1.16-1.2211.6-12.210.684517135333-36263-287120
N38H1.21-1.2712.1-12.711.188617135336-39287-310120
N40H1.25-1.3112.5-13.111.591217135338-41303-326120
N42H1.28-1.3412.8-13.411.893816.5131340-43318-342120
N45H1.32-1.3813.2-13.812.297616127443-46342-366120
N30SH1.07-1.1410.7-11.49.777220159228-31223-247150
N33SH1.22-1.191.14-1.1810.281620159231-34247-271150
N35SH1.16-1.2211.6-12.210.684520159233-36263-287150
N38SH1.21-12.712.1-12.711.188620159236-39278-310150
N40SH1.25-1.3112.5-13.111.591220159238-41302-326150
N42SH1.28-1.3412.8-13.411.893820159240-43318-342150
N30UH1.07-1.1410.7-11.49.777225199028-31223-247180
N33UH1.12-1.1911.2-11.910.281625199131-34247-271180
N35UH1.16-1.2211.6-12.210.684524191033-36263-287180
N38UH1.21-1.2712.1-12.711.188624191036-39287-310180
N30EH1.07-1.1410.7-11.49.777230238828-31223-247200
N33EH1.12-1.1911.2-11.910.281630238831-34247-271200
N35EH1.16-1.2211.6-12.210.684530238833-36263-287200

Physical Properties of Sintered NdFeB Material
PropertiesUnitParameter
Curie PointºC310-340
((Br)/ (%/K)Temp.Coeff.of Br%ºC-0.08 ~ - 0.12
(β(Hcj/%/K)Temp.Coeff.of Hcj%ºC-0.42 ~ -0.70
Densityg/cm3≥7.3
Vickers HardnessHv600
Bending strengthMpa250
Tensile strengthMpa80
Compressive strengthMpa1050
Electrical resistivityμΩcm150
Thermal conductivityW/(m.ºC)6 ~8
 
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