www.jpmfmagnet.com
Specialized in producing magnet materials over 20years
Aims to be the best Neodymium Magnet supplier in China
Offer Super Strong NdFeB Magnet, Professional Service.
NdFeB magnets -The Strongest Permanent Magnets Today
NdFeB(Neodymium-Iron-Boron) magnet is used most popular by people in industry and our daily life, because it has superior magnetic properties than other kind of magnets.1. Specifications of Sintered Neodymium Magnet
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Place of Origin | Guangdong, China(Mainland) |
Magnet Type | Sintered NeFeB /Â rare earth /Â Permanent |
Composite | Neodymium-Iron-Boron |
Grade | N35-N54( M, H, SH, UH, EH, AH series ) |
Working Temperature | The Max. temp. is up to 80 /Â 100 /120 /150 /Â 230 celsius under different grade. |
Tolerance | +/-0.03 to +/-0.15 |
Shape of Magnet | Disc, Cylinder, Block, Ring, Sphere(ball), Arc Segment(Tile) and more custom shapes |
Size | various sizes custom-make welcome |
Coating | Ni, Zn, NiCuNi, gold, silver, copper, epoxy, etc. |
Magnetization Direction | Axially Magnetized, Radially Magnetized(Diametrically), Multi-poles Magnetized or other customized |
Quality System/Certificate | ISO/TS16949:2009; ISO9001:2000,QS-9000 SGS,RoHS,REACH |
Application | Industrial Magnet, Toy Magnet, Health Magnet and more |
Packaging | Antimagnetic Packaging /Â Neutral Packing /Â Custom-make welcome |
Shipping Method | by see, by air or by int'l express |
Lead Time | 10~25days |
2. Magnet Display
Neodymium-Iron-Boron (NdFeB) magnets are composed of neodymium, iron, boron and a few transition metals. These kind of permanent magnets are extremely strong and can be producted in different shapes and sizes (ie. arcs, blocks, discs, rings).
It has higher unit magnetic properties than other magnet and assure you of smaller size and lighter weight in designing devices.

3. Applications of Sintered NdFeB Magnets
 · Automotive Starters                  |  · Microphone Assemblies |
 · Computer Rigid Disc Drives |  · Particle Accelerators |
 · DC Motors |  · Printers |
 · Headphone |  · Relays |
 · Halbach Arrays |  · Servo Motors |
 · Linear Actuators |  · Stepper Motors |
 · Linear Motors |  · Switches |
 · Loud Speakers |  · Undulators |
 · Magnetic Bearings |  · Vacuum Deposition |
 · Magnetic Couplings |  · Voice Coil Motors (VCM) |
 · Magnetic Separators |  · Wind Turbines |

The permanent magnets, which are called the next centurial magnets, are used in a wide range of industries including computer, automobile, electric machinary, electro-sound devices, automatic control, magnetic force mechanism, microwave commnication, petrochemical industry, medical apparatus and equipment. The magnets are the ideal materials for the subminiature magnetic devices with high function.NdFeB magnets is especially suitable for developing those new products demanding high quality, small volume and light weight.
4. Technical Data of Sintered NdFeB Magnets
 MAGNETIC AND PHYSICAL CHARACTERISTICS    Â
Series | Grade | Remanence | Coercive Force | Intrinsic Coercive force | Max. Energy Product | Max. Working Temp. | |||||
Br | Hcb | Hci | (BH) max | L/D=0.7 | |||||||
T | kGs | KA/m | KOe | KA/m | KOe | KJ/m3 | MGOe | ºC | °F | ||
N | N35 | 1.17-1.24 | 11.7-12.4 | ≥860 | ≥10.8 | ≥955 | ≥12 | 263-295 | 33-37 | 80 | 176 |
N38 | 1.22-1.30 | 12.2-13.0 | ≥860 | ≥10.8 | ≥955 | ≥12 | 287-318 | 36-40 | 80 | 176 | |
N40 | 1.26-1.32 | 12.6-13.2 | ≥860 | ≥10.8 | ≥955 | ≥12 | 302-334 | 38-42 | 80 | 176 | |
N42 | 1.29-1.35 | 12.9-13.5 | ≥860 | ≥10.8 | ≥955 | ≥12 | 318-350 | 40-44 | 80 | 176 | |
N45 | 1.32-1.38 | 13.2-13.8 | ≥860 | ≥10.8 | ≥955 | ≥12 | 334-366 | 42-46 | 80 | 176 | |
N48 | 1.37-1.43 | 13.7-14.3 | ≥836 | ≥10.5 | ≥876 | ≥11 | 358-390 | 45-49 | 80 | 176 | |
N50 | 1.40-1.45 | 14.0-14.5 | ≥836 | ≥10.5 | ≥876 | ≥11 | 374-406 | 47-51 | 80 | 176 | |
N52 | 1.42-1.48 | 14.2-14.8 | ≥836 | ≥10.5 | ≥876 | ≥11 | 390-422 | 49-53 | 80 | 176 | |
N54 | 1.45-1.51 | 14.5-15.1 | ≥836 | ≥10.5 | ≥876 | ≥11 | 398-438 | 50-55 | 80 | 176 | |
M | N35M | 1.17-1.24 | 11.7-12.4 | ≥860 | ≥10.8 | ≥1114 | ≥14 | 263-295 | 33-37 | 100 | 212 |
N38M | 1.22-1.30 | 12.2-13.0 | ≥915 | ≥11.5 | ≥1114 | ≥14 | 287-318 | 36-40 | 100 | 212 | |
N40M | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1114 | ≥14 | 302-334 | 38-42 | 100 | 212 | |
N42M | 1.29-1.35 | 12.9-13.5 | ≥955 | ≥12.0 | ≥1114 | ≥14 | 318-350 | 40-44 | 100 | 212 | |
N45M | 1.32-1.38 | 13.2-13.8 | ≥987 | ≥12.4 | ≥1114 | ≥14 | 334-366 | 42-46 | 100 | 212 | |
N48M | 1.37-1.43 | 13.7-14.3 | ≥1019 | ≥12.8 | ≥1114 | ≥14 | 358-390 | 45-49 | 100 | 212 | |
N50M | 1.40-1.45 | 14.0-14.5 | ≥1043 | ≥13.1 | ≥1114 | ≥14 | 374-406 | 47-51 | 100 | 212 | |
N52M | 1.42-1.48 | 14.2-14.8 | ≥1059 | ≥13.3 | ≥1114 | ≥14 | 390-422 | 49-53 | 100 | 212 | |
H | N35H | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11 | ≥1350 | ≥17 | 263-295 | 33-37 | 120 | 248 |
N38H | 1.22-1.30 | 12.2-13.0 | ≥915 | ≥11.5 | ≥1350 | ≥17 | 287-318 | 36-40 | 120 | 248 | |
N40H | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1350 | ≥17 | 302-334 | 38-42 | 120 | 248 | |
N42H | 1.29-1.35 | 12.9-13.5 | ≥963 | ≥12.1 | ≥1350 | ≥17 | 318-350 | 40-44 | 120 | 248 | |
N45H | 1.31-1.37 | 13.1-13.7 | ≥979 | ≥12.3 | ≥1350 | ≥17 | 335-366 | 42-46 | 120 | 248 | |
N48H | 1.37-1.43 | 13.7-14.3 | ≥1011 | ≥12.7 | ≥1274 | ≥16 | 358-390 | 45-49 | 120 | 248 | |
N50H | 1.40-1.45 | 14.0-14.5 | ≥1027 | ≥12.9 | ≥1274 | ≥16 | 374-406 | 47-51 | 120 | 248 | |
SH | N33SH | 1.14-1.21 | 11.4-12.1 | ≥852 | ≥10.7 | ≥1592 | ≥20 | 247-279 | 31-35 | 150 | 302 |
N35SH | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11 | ≥1592 | ≥20 | 263-295 | 33-37 | 150 | 302 | |
N38SH | 1.22-1.29 | 12.2-12.9 | ≥915 | ≥11.5 | ≥1592 | ≥20 | 287-318 | 36-40 | 150 | 302 | |
N40SH | 1.26-1.32 | 12.6-13.2 | ≥939 | ≥11.8 | ≥1592 | ≥20 | 302-334 | 38-42 | 150 | 302 | |
N42SH | 1.29-1.35 | 12.9-13.5 | ≥963 | ≥12.1 | ≥1592 | ≥20 | 318-350 | 40-44 | 150 | 302 | |
N45SH | 1.32-1.38 | 13.2-13.8 | ≥994 | ≥12.5 | ≥1592 | ≥20 | 335-366 | 42-46 | 150 | 302 | |
UH | N30UH | 1.08-1.16 | 10.8-11.6 | ≥812 | ≥10.2 | ≥1990 | ≥25 | 223-255 | 28-32 | 180 | 356 |
N33UH | 1.14-1.21 | 11.4-12.1 | ≥852 | ≥10.7 | ≥1990 | ≥25 | 247-279 | 31-35 | 180 | 356 | |
N35UH | 1.17-1.24 | 11.7-12.4 | ≥876 | ≥11 | ≥1990 | ≥25 | 263-295 | 33-37 | 180 | 356 | |
N38UH | 1.22-1.29 | 12.2-12.9 | ≥915 | ≥11.5 | Marble Sculpting There are many ways to design stone carvings. Relief: carving a three-dimensional image on the stone surface, which is a semi vertical sculpture. Because the image is embossed on the stone surface, it is called relief. According to the depth of the stone surface, it can be divided into shallow relief and high relief. Shallow relief is a single level statue, which has a single content and is not hollowed out. High relief is a multi-level sculpture with complicated contents. It is more attractive to use openwork techniques to hollow out. The reliefs are mostly used for the wall decoration of buildings, as well as the dragon columns and holding drums of temples. Marble Sculpting,Marble Sculpting Process,Modern Marble Sculpting,Marble Sculpture Art The universe in the stone is great , https://www.zdartwork.com |