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Ningbo Risheng Magnets Co., Ltd.
Ningbo Risheng Magnets Co., Ltd. >> Rare Earth Permanent NdFeB / Neodymium Magnet

Rare Earth Permanent NdFeB / Neodymium Magnet

Rare Earth Permanent NdFeB / Neodymium Magnet
Price: Negotiable/Piece
Trade Terms: FOB,CIF
Min Order: 100/Piece
Pay Type: T/T,Paypal,Western Union
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Showroom Product Company Profile
We are a very professional manufacturer of strong permanent NdFeB / Neodymium magnets with wide range of shapes & sizes and grades:

Strong NdFeB Magnet / Permanent Neodymium Magnet- N: N35, N38, N40, N42, N45, N48, N50 and N52.
Strong NdFeB Magnet / Permanent Neodymium Magnet- M: 33M, 35M, 38M, 40M, 42M, 45M, 48M and 50M.
Strong NdFeB Magnet / Permanent Neodymium Magnet- H: 35H, 38H, 40H, 42H, 45H and 48H.
Strong NdFeB Magnet / Permanent Neodymium Magnet - SH: 35SH, 38SH, 40SH, 42SH and 45SH.
Strong NdFeB Magnet / Permanent Neodymium Magnet UH: 28UH, 30UH, 33UH, 35UH, 38UH and 40UH.
Strong NdFeB Magnet / Permanent Neodymium Magnet- EH: 28EH, 30EH, 30EH, 33EH, 35EH and 38EH.
Strong NdFeB Magnet / Permanent Neodymium Magnet- AH: 28AH, 30AH and 33AH.

1) Material of Strong NdFeB Magnet / Permanent Neodymium Magnet: Neodymium, Iron, Boron and a few transition metals.
2) Working Temperature of Strong NdFeB Magnet / Permanent Neodymium Magnet: The max working temperature is up to 220 degree centigrade.
3) Grade of Strong NdFeB Magnet / Permanent Neodymium Magnet: N35-N52, 33M-50M, 35H-48H, 35SH-45SH, 28UH-40UH, 28EH-38EH and 28AH-33AH.
4) Shape of Strong NdFeB Magnet / Permanent Neodymium Magnett: Ring, block, disc, bar, arc and so on.
5) Size of Strong NdFeB Magnet / Permanent Neodymium Magnet: According to customers' request.
6) Coating of Strong NdFeB Magnet / Permanent Neodymium Magnet: Nickel, Zn, Ni-Cu-Ni, Gold, Silver, Sn, Chrome and so on.
7) Application of Strong NdFeB Magnet / Permanent Neodymium Magnet: Sensors, motors, rotors, wind turbines, wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.

Neodymium, Iron, Boron and a few transition metals. They have high remanence, high coercive force, high energy product, and high performance /cost. Currently NdFeB magnets are the strongest magnets available in the world.

Machining and Tolerances
Generally, NdFeB magnets must be machined using diamond-grinding techniques. Sometimes, machining operations may be performed on NdFeB materials using carbide tools, but surface finishes thus obtained may be less than optimal. The Standard tolerances for NdFeB magnets are +/- 0.1mm for ground dimensions, but sticter tolerances are possible if specially required.

Magnetization
NdFeB magnets require extremely high magnetizing fields, and can be magnetized in any direction as long as it is aligned properly. In some instances multiple pole magnetization is possible with special fixtures. All NdFeB magnets are anisotropic, and can only be magnetized in the orientation direction, so particular consideration must be given to this when designing complex assemblies, if it is intended to magnetize after assembly.

Surface Treatment
The corrosion resistance of NdFeB magnets is considered poor. Surface coating or plating is therefore highly recommended for NdFeB magnets. All kinds of surface coating are available, like Nickel, Zn, Ni-Cu-Ni, Gold, Silver, Sn, Chrome. We also applied special surface protection to NdFeB magnets, like ABS coating, Rubber coating, PTFE(Teflon) coating, stainless steel case, etc.

Packing
NdFeB magnets are mechanically weak, and magnetically very strong. They should be packed properly in order to help user to use and handle them.
Magnetic properties of Neodymium magnets
Grade Residual Induction Coercive Force Intrinsic Coercive Force Maximum Energy Product Maximum Working Temperature
Br Hcb Hcj (BH)max Tw
mT kA/m kA/m kJ/m 3
[kGs] [kOe] [kOe] [MGOe]
N35 1170-1220 ≥868 ≥955 263-287 80°
  [11.7-12.2] [≥10.9] [≥12] [33-36]  
N38 1220-1250 ≥899 ≥955 287-310 80°
  [12.2-12.5] [≥11.3] [≥12] [36-39]  
N40 1250-1280 ≥907 ≥955 302-326 80°
  [12.5-12.8] [≥11.4] [≥12] [38-41]  
N42 1280-1320 ≥915 ≥955 318-342 80°
  [12.8-13.2] [≥11.5] [≥12] [40-43]  
N45 1320-1380 ≥923 ≥955 342-366 80°
  [13.2-13.8] [≥11.6] [≥12] [43-46]  
N48 1380-1420 ≥923 ≥955 366-390 80°
  [13.8-14.2] [≥11.6] [≥12] [46-49]  
N50 1400-1450 ≥796 ≥876 382-406 60°
  [14.0-14.5] [≥10.0] [≥11] [48-51]  
N52 1430-1480 ≥796 ≥876 398-422 60°
  [14.3-14.8] [≥10.0] [≥11] [50-53]  
30M 1080-1130 ≥805 ≥1114 223-247 100°
  [10.8-11.3] [≥10.1] [≥14] [28-31]  
33M 1130-1170 ≥836 ≥1114 247-263 100°
  [11.3-11.7] [≥10.5] [≥14] [31-33]  
35M 1170-1220 ≥868 ≥1114 263-287 100°
  [11.7-12.2] [≥10.9] [≥14] [33-36]  
38M 1220-1250 ≥899 ≥1114 287-310 100°
  [12.2-12.5] [≥11.3] [≥14] [36-39]  
40M 1250-1280 ≥923 ≥1114 302-326 100°
  [12.5-12.8] [≥11.6] [≥14] [38-41]  
42M 1280-1320 ≥955 ≥1114 318-342 100°
  [12.8-13.2] [≥12.0] [≥14] [40-43]  
45M 1320-1380 ≥995 ≥1114 342-366 100°
  [13.2-13.8] [≥12.5] [≥14] [43-46]  
48M 1370-1430 ≥1027 ≥1114 366-390 100°
  [13.7-14.3] [≥12.9] [≥14] [46-49]  
50M 1400-1450 ≥1033 ≥1114 382-406 100°
  [14.0-14.5] [≥13.0] [≥14] [48-51]  
35H 1170-1220 ≥868 ≥1353 263-287 120°
  [11.7-12.2] [≥10.9] [≥17] [33-36]  
38H 1220-1250 ≥899 ≥1353 287-310 120°
  [12.2-12.5] [≥11.3] [≥17] [36-39]  
40H 1250-1280 ≥923 ≥1353 302-326 120°
  [12.5-12.8] [≥11.6] [≥17] [38-41]  
42H 1280-1320 ≥955 ≥1353 318-342 120°
  [12.8-13.2] [≥12.0] [≥17] [40-43]  
45H 1320-1360 ≥963 ≥1353 342-366 120°
  [13.2-13.6] [≥12.1] [≥17] [43-46]  
48H 1370-1430 ≥995 ≥1353 366-390 120°
  [13.7-14.3] [≥12.5] [≥17] [46-49]  
35SH 1170-1220 ≥876 ≥1592 263-287 150°
  [11.7-12.2] [≥11.0] [≥20] [33-36]  
38SH 1220-1250 ≥907 ≥1592 287-310 150°
  [12.2-12.5] [≥11.4] [≥20] [36-39]  
40SH 1250-1280 ≥939 ≥1592 302-326 150°
  [12.5-12.8] [≥11.8] [≥20] [38-41]  
42SH 1280-1320 ≥987 ≥1592 318-342 150°
  [12.8-13.2] [≥12.4] [≥20] [40-43]  
45SH 1320-1380 ≥1003 ≥1592 342-366 150°
  [13.2-13.8] [≥12.6] [≥20] [43-46]  
28UH 1040-1080 ≥764 ≥1990 207-231 180°
  [10.4-10.8] [≥9.6] [≥25] [26-29]  
30UH 1080-1130 ≥812 ≥1990 223-247 180°
  [10.8-11.3] [≥10.2] [≥25] [28-31]  
33UH 1130-1170 ≥852 ≥1990 247-271 180°
  [11.3-11.7] [≥10.7] [≥25] [31-34]  
35UH 1170-1220 ≥860 ≥1990 263-287 180°
  [11.7-12.2] [≥10.8] [≥25] [33-36]  
38UH 1220-1250 ≥876 ≥1990 287-310 180°
  [12.2-12.5] [≥11.0] [≥25] [36-39]  
40UH 1250-1280 ≥899 ≥1990 302-326 180°
  [12.5-12.8] [≥11.3] [≥25] [38-41]  
28EH 1040-1080 ≥780 ≥2388 207-231 200°
  [10.4-10.8] [≥9.8] [≥30] [26-29]  
30EH 1080-1130 ≥812 ≥2388 223-247 200°
  [10.8-11.3] [≥10.2] [≥30] [28-31]  
33EH 1130-1170 ≥876 ≥2388 247-271 200°
  [11.3-11.7] [≥10.5] [≥30] [31-34]  
35EH 1170-1220 ≥876 ≥2388 263-287 200°
  [11.7-12.2] [≥11.0] [≥30] [33-36]  
38EH 1220-1250 ≥899 ≥2388 287-310 200°
  [12.2-12.5] [≥11.3] [≥30] [36-39]  
28AH 1040-1080 ≥787 ≥2624 207-231 220°
  [10.4-10.8] [≥9.9] [≥33] [26-29]  
30AH 1080-1130 ≥819 ≥2624 223-247 220°
  [10.8-11.3] [≥10.3] [≥33] [28-31]  
33AH 1130-1170 ≥843 ≥2624 247-271 220°
  [11.3-11.7] [≥10.6] [≥33] [31-34]  
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Tolerance: +/-0.1mm
Type: Permanent
Composition: NdFeB Magnet
Coating: Nickel
Application: Industrial Magnet
Shape: Block, Disc, Ring, Bar, Arc and etc.
Ningbo Risheng Magnets Co., Ltd is a professional manufacturer specialized in high quality special made Neodymium magnets, SmCo magnets, meanwhile we are also supplying AlNiCo magnets, magnetic assemblies & flexible magnetic materials with high quality at competitive prices!

First, we manufacture high quality custom-made sintered Neodymium magnets and SmCo magnets at competitive price. With a team of experienced professionals in magnetism and magnetic application, we can almost do any size and coating like Nickel, Black nickel, Zinc, Epoxy, Stannum, Gold, Silver & Parylene etc. Are widely used in wind generators, DC motors, servo motors, air conditioners, medical equipment, VCM, mobile phones, speakers and magnetic holding and seperation systems etc.

Secondly, we produce and develop all kinds of customized & standard magnetic assemblies and related products according to customer's requirements. Our main magetic products include permanent magnet motor components, motor rotors, magnetic couplings, magnetic name badges, Neodymium pot magnets and etc.

Finally we also supply flexible magnetic materials with high quality at competitive prices.

With over 15 years' experience in producing and developing all kinds of permanet magnets, magnetic products & flexible magnetic materials, All products are made based on ISO9001: 2000 Quality Management System and meet Europe and America standard and RoHS standard.

We sincerely welcome you to come into a very successful and long-term relation With us!

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