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NdFeB Rare Earth Magnets

NdFeB Rare Earth Magnets

NdFeB Rare Earth Permanent Magnet Overview

NdFeB Rare Earth Magnet is a kind of functional material that is necessary for basic industry and frontier science. In order to keep up with the rapid developing trend of NdFeb rare earth magnets production and application in the world, the factory backed by its year's professional experience and convenient well-situated facility, continuously promotes the development and production in the field.

Use of sintered NdFeB permanent magnets, as the piece part magnet or as it's assembly, made by non-licensee is prohibited by the Patent Law of the United States of America. All of sintered neodymium-iron-boron (NdFeB) permanent magnets, which Stanford Magnets Company supplies,are licensed.

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NdFeB Rare Earth Magnets Properties

Type/Grade Residual induction
Br(KGs)
Coercive Force
bHc(KOe)
Intrinsic coercive
Force iHc(KOe)
Squareness
(Hk/iHe)
Max. Energy Product
(BH)max.(MGOe)
Max. Operating
Temp.(°C)
Inquiry
N35 11.7-12.3 10.7-12.0 ≥12 ≥0.85 33-36 80 Inquiry
N38 12.1-12.7 11.1-12.4 ≥12 ≥0.85 36-39 80 Inquiry
N40 12.5-13.2 11.5-12.8 ≥12 ≥0.85 38-41 80 Inquiry
N42 12.9-13.5 11.5-13.2 ≥12 ≥0.85 40-43 80 Inquiry
N45 13.3-13.9 11.5-13.6 ≥11 ≥0.85 43-46 80 Inquiry
N48 13.7-14.3 11.5-14.0 ≥11 ≥0.85 46-49 80 Inquiry
N50 14.1-14.9 11.5-14.0 ≥11 ≥0.85 49-51 80 Inquiry
33M 11.3-11.9 10.3-11.6 ≥14 ≥0.85 31-33 100 Inquiry
35M 11.7-12.3 10.7-12.0 ≥14 ≥0.85 33-36 100 Inquiry
38M 12.1-12.7 11.1-12.4 ≥14 ≥0.85 36-39 100 Inquiry
40M 12.5-13.2 11.5-12.8 ≥14 ≥0.85 38-41 100 Inquiry
42M 12.9-13.5 11.9-13.2 ≥14 ≥0.85 40-43 100 Inquiry
45M 13.3-13.9 12.3-13.6 ≥14 ≥0.85 43-46 100 Inquiry
48M 13.7-14.3 12.8-14.1 ≥14 ≥0.85 46-49 100 Inquiry
30H 10.9-11.5 9.9-11.2 ≥17 ≥0.85 28-31 120 Inquiry
33H 11.3-11.9 10.3-11.6 ≥17 ≥0.85 31-34 120 Inquiry
35H 11.7-12.3 10.7-12.0 ≥17 ≥0.85 33-36 120 Inquiry
38H 12.1-12.7 11.1-12.4 ≥17 ≥0.85 36-39 120 Inquiry
40H 12.5-13.2 11.5-12.8 ≥17 ≥0.85 38-41 120 Inquiry
42H 12.9-13.5 11.9-13.2 ≥17 ≥0.85 40-43 120 Inquiry
45H 13.3-13.9 12.5-13.8 ≥17 ≥0.85 43-46 120 Inquiry
27SH 10.5-11.1 9.5-10.8 ≥20 ≥0.85 25-28 150 Inquiry
30SH 10.9-11.5 9.9-11.2 ≥20 ≥0.85 28-31 150 Inquiry
33SH 11.3-11.9 10.3-11.6 ≥20 ≥0.85 31-34 150 Inquiry
35SH 11.7-12.3 10.7-12.0 ≥20 ≥0.85 33-36 150 Inquiry
38SH 12.1-12.7 11.1-12.4 ≥20 ≥0.85 36-39 150 Inquiry
40SH 12.5-13.2 11.5-12.8 ≥20 ≥0.85 38-41 150 Inquiry
42SH 12.9-13.5 11.9-13.2 ≥20 ≥0.85 40-43 150 Inquiry
25UH 10.1-10.7 9.1-10.4 ≥25 ≥0.85 23-26 180 Inquiry
27UH 10.5-11.1 9.5-10.8 ≥25 ≥0.85 25-28 180 Inquiry
30UH 10.9-11.5 9.9-11.2 ≥25 ≥0.85 28-31 180 Inquiry
33UH 11.3-11.9 10.3-11.6 ≥25 ≥0.85 31-34 180 Inquiry
35UH 11.7-12.3 10.7-12.0 ≥25 ≥0.85 33-36 180 Inquiry
38UH 12.1-12.9 11.1-12.6 ≥25 ≥0.85 36-39 180 Inquiry
40UH 12.5-13.3 11.5-13.0 ≥25 ≥0.85 38-41 180 Inquiry
23EH 9.7-10.3 8.7-10.0 ≥30 ≥0.85 21-24 200 Inquiry
25EH 10.1-10.7 9.1-10.4 ≥30 ≥0.85 23-26 200 Inquiry
27EH 10.5-11.1 9.5-10.8 ≥30 ≥0.85 25-28 200 Inquiry
30EH 10.9-11.5 9.9-11.2 ≥30 ≥0.85 28-31 200 Inquiry
33EH 11.3-11.9 10.3-11.6 ≥30 ≥0.85 31-34 200 Inquiry
35EH 11.7-12.3 10.7-12.0 ≥30 ≥0.85 33-36 200 Inquiry
38EH 12.1-12.9 11.1-12.6 ≥30 ≥0.85 36-39 200 Inquiry

Key Advantages

  • Neodymium magnets are the most powerful commercially produced magnets.
  • NdFeB magnets have a higher Maximum Energy Product, (BH).max, which can easily reach 30 MGOe and even goes up to 50 MGOe.
  • NdFeB magnets can replace SmCo magnets in most cases, especially where operating temperature is less than 80 degrees Centigrade.
  • Very high strength.
  • Relatively low cost.
  • Compared to Alnico and SmCo magnets, relatively easy to machine.

Quick Leads

  • Manufacturing process - sintering (most common), injection molding, and compression bonding.
  • Shapes available - blocks, bars, discs, rings, cylinders, arc segments, or irregular shapes, etc.
  • Wide range of Grades available- from about 3330 to 5311. (First 2 digits represent BH.max, and second two digits represent Intrinsic Coercivity, Hci.)
  • Density: 7.4 -7.6 g/ cm3; Hardness: 600 {Hv}
  • Some particular grades of Stanford Magnets can achieve 200°c the max working temperature.
  • Saturation magnetizing field required - about 35kOe
  • Machining - Neodymium magnets should be machined by grinding using diamond wheels, however, of the hard magnet materials, Neo magnets are the least difficult to machine. We can successfully machine very small magnets.

Common Applications

Sensors   Linear actuators   Microphone assemblies    Magnetic separators   DC and servo motors   Speakers   Printers   Magnetic hooksComputer rigid disc drives   Beam controls   Intelligent toys   MRI/NMR

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