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.
Learn more about NdFeb Rare Earth Permanent Magnet
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