Black Epoxy Coated Round Disc NIB Nd-Fe-B Magnets Parameter:
Material Grade N48
Plating/Coating Black epoxy coating
Specification D28 x 3 mm
Magnetism Direction Axial
Shape round, disc
Telerance ±0.05mm to ±0.1mm
Max working Temp ≤ 80 ° C
Used widely use in toys, hardware, electronics, motors, instruments, medical instruments and other applications
Packing Polybag Packing → Box Packing → Sealed Carton → Plywood Case / Plywoo Pallet
Neodymium Iron Boron magnets, also known as Rare Earths or Neo, have the highest energy product of all permanent magnet materials today. In most cases, no tooling charges exist. Various grades are available, depending on maximum operating temps.
Category: sintered neodymium magnets/ sintered NdFeB magnets/rare earth magnets
Advantages: high performance-price ratio; high magnetic energy, good machanical properties
Disadvantages: poor temperature characteristic; poor corrosion resistance,surface treatment needed; price is not stable
Neodymium-iron-boron magnets short as Nd-Fe-B magnets, NIB magnets, neo magnets or neodymium magnets. Following called as NdFeB magnets or neodymium magnets.
Neodymium magnets can be divided into three main groups:
1.Regular Neodymium Magnets
2.High corrosion resistant Neodymium Magnets
3.Bonded Neodymium (Isotropic): Manufactured by the injection of plastic material and Neodymium into a mold. This production method yields a very precise magnet which does not require further grinding and does not suffer substantial current loss. Personalized NdFeB Magnet Cube
High Corrosion Resistant Magnets
Under the Environment of high temperature, high pressure and high humidity, the weight loss level of uncoated magnets can qualitatively reflect its serving life clearly. Referring to the standard IEC68-2-66 and after 20 days, Hast testing, weight loss of less than 2mg/cm² is available for HSMAG, which is the top level worldwide.
| Grade | Residual Induction (Br) |
Coercive Force (Hcb) |
Intrinsic Coercive Force (Hcj) |
Max Energy Product (BH)max |
Temp. Coefficient Tk |
Max Working Temp. | Curie Temp. | |||||
| T | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | %/˚C (Br) |
%/˚C (Hcj) | ˚C | ˚C | |
| N35-A1 | 0.99-1.05 | 9.9-10.5 | ≥730 | ≥9.2 | ≥780 | ≥9.8 | 176-200 | 22-25 | -0.12 | -0.70 | 60 | 310 |
| N35-A2 | 1.05-1.08 | 10.5-10.8 | ≥780 | ≥9.8 | ≥859 | ≥10.5 | 200-216 | 25-27 | -0.12 | -0.70 | 60 | 310 |
| N35 | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥955 | ≥12 | 263-287 | 33-36 | -0.12 | -0.70 | 80 | 310 |
| N38 | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥955 | ≥12 | 287-310 | 36-39 | -0.12 | -0.70 | 80 | 310 |
| N40 | 1.25-1.28 | 12.5-12.8 | ≥907 | ≥11.4 | ≥955 | ≥12 | 302-326 | 38-41 | -0.12 | -0.70 | 80 | 310 |
| N42 | 1.28-1.32 | 12.8-13.2 | ≥915 | ≥11.5 | ≥955 | ≥12 | 318-342 | 40-43 | -0.12 | -0.70 | 80 | 310 |
| N45 | 1.32-1.38 | 13.2-13.8 | ≥923 | ≥11.6 | ≥955 | ≥12 | 342-366 | 43-46 | -0.12 | -0.70 | 80 | 310 |
| N48 | 1.38-1.42 | 13.8-14.2 | ≥923 | ≥11.6 | ≥955 | ≥12 | 366-390 | 46-49 | -0.12 | -0.70 | 80 | 310 |
| N50 | 1.40-1.45 | 14.0-14.5 | ≥796 | ≥10.0 | ≥876 | ≥11 | 382-406 | 48-51 | -0.12 | -0.70 | 60 | 310 |
| N52 | 1.43-1.48 | 14.3-14.8 | ≥796 | ≥10.0 | ≥876 | ≥11 | 398-422 | 50-53 | -0.12 | -0.70 | 60 | 310 |
| N55 | 1.46-1.52 | 14.6-15.2 | ≥796 | ≥10.0 | ≥876 | ≥11 | 414-430 | 52-54 | -0.12 | -0.70 | 60 | 310 |
| N35M | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥1114 | ≥14 | 263-287 | 33-36 | -0.12 | -0.70 | 100 | 310 |
| N38M | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥1114 | ≥14 | 287-310 | 36-39 | -0.12 | -0.70 | 100 | 310 |
| N40M | 1.25-1.28 | 12.5-12.8 | ≥923 | ≥11.6 | ≥1114 | ≥14 | 302-326 | 38-41 | -0.12 | -0.70 | 100 | 310 |
| N42M | 1.28-1.32 | 12.8-13.2 | ≥955 | ≥12.0 | ≥1114 | ≥14 | 318-342 | 40-43 | -0.12 | -0.70 | 100 | 310 |
| N45M | 1.32-1.38 | 13.2-13.8 | ≥995 | ≥12.5 | ≥1114 | ≥14 | 342-366 | 43-46 | -0.12 | -0.70 | 100 | 310 |
| N48M | 1.37-1.43 | 13.7-14.3 | ≥1027 | ≥12.9 | ≥1114 | ≥14 | 366-390 | 46-49 | -0.12 | -0.70 | 100 | 310 |
| N50M | 1.40-1.45 | 14.0-14.5 | ≥1033 | ≥13 | ≥1114 | ≥14 | 382-406 | 48-51 | -0.12 | -0.70 | 100 | 310 |
| N52M | 1.43-1.48 | 14.3-14.8 | ≥1050 | ≥13.2 | ≥1114 | ≥14 | 398-422 | 50-53 | -0.12 | -0.70 | 100 | 310 |
| N55M | 1.46-1.52 | 14.6-15.2 | ≥1066 | ≥13.4 | ≥1114 | ≥14 | 414-430 | 52-54 | -0.12 | -0.70 | 100 | 310 |
| N35H | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥1353 | ≥17 | 263-287 | 33-36 | -0.12 | -0.70 | 120 | 310 |
| N38H | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥1353 | ≥17 | 287-310 | 36-39 | -0.12 | -0.70 | 120 | 310 |
| N40H | 1.25-1.28 | 12.5-12.8 | ≥923 | ≥11.6 | ≥1353 | ≥17 | 302-326 | 38-41 | -0.12 | -0.70 | 120 | 310 |
| N42H | 1.28-1.32 | 12.8-13.2 | ≥955 | ≥12.0 | ≥1353 | ≥17 | 318-342 | 40-43 | -0.12 | -0.70 | 120 | 310 |
| N45H | 1.32-1.36 | 13.2-13.6 | ≥963 | ≥12.1 | ≥1353 | ≥17 | 342-366 | 43-46 | -0.12 | -0.70 | 120 | 310 |
| N48H | 1.37-1.43 | 13.7-14.3 | ≥995 | ≥12.5 | ≥1353 | ≥17 | 366-390 | 46-49 | -0.12 | -0.70 | 120 | 310 |
| N50H | 1.40-1.45 | 14.0-14.5 | ≥1011 | ≥12.7 | ≥1353 | ≥17 | 382-406 | 48-51 | -0.12 | -0.70 | 120 | 310 |
| N52H | 1.43-1.48 | 14.3-14.8 | ≥1027 | ≥12.9 | ≥1353 | ≥17 | 398-422 | 50-53 | -0.12 | -0.70 | 120 | 310 |
| N55H | 1.46-1.52 | 14.6-15.2 | ≥1035 | ≥13 | ≥1353 | ≥17 | 414-430 | 52-54 | -0.12 | -0.70 | 120 | 310 |
| N35SH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥1592 | ≥20 | 263-287 | 33-36 | -0.11 | -0.65 | 150 | 320 |
| N38SH | 1.22-1.25 | 12.2-12.5 | ≥907 | ≥11.4 | ≥1592 | ≥20 | 287-310 | 36-39 | -0.11 | -0.65 | 150 | 320 |
| N40SH | 1.25-1.28 | 12.5-12.8 | ≥939 | ≥11.8 | ≥1592 | ≥20 | 302-326 | 38-41 | -0.11 | -0.65 | 150 | 320 |
| N42SH | 1.28-1.32 | 12.8-13.2 | ≥987 | ≥12.4 | ≥1592 | ≥20 | 318-342 | 40-43 | -0.11 | -0.65 | 150 | 320 |
| N45SH | 1.32-1.38 | 13.2-13.8 | ≥1003 | ≥12.6 | ≥1592 | ≥20 | 342-366 | 43-46 | -0.11 | -0.65 | 150 | 320 |
| N48SH | 1.37-1.43 | 13.7-14.3 | ≥1027 | ≥12.9 | ≥1592 | ≥20 | 366-390 | 46-49 | -0.11 | -0.65 | 150 | 320 |
| N28UH | 1.04-1.08 | 10.4-10.8 | ≥764 | ≥9.6 | ≥1990 | ≥25 | 207-231 | 26-29 | -0.11 | -0.60 | 180 | 330 |
| N30UH | 1.08-1.13 | 10.8-11.3 | ≥812 | ≥10.2 | ≥1990 | ≥25 | 223-247 | 28-31 | -0.11 | -0.60 | 180 | 330 |
| N33UH | 1.13-1.17 | 11.3-11.7 | ≥852 | ≥10.7 | ≥1990 | ≥25 | 247-271 | 31-34 | -0.11 | -0.60 | 180 | 330 |
| N35UH | 1.17-1.22 | 11.7-12.2 | ≥860 | ≥10.8 | ≥1990 | ≥25 | 263-287 | 33-36 | -0.11 | -0.60 | 180 | 330 |
| N38UH | 1.22-1.25 | 12.2-12.5 | ≥876 | ≥11.0 | ≥1990 | ≥25 | 287-310 | 36-39 | -0.11 | -0.60 | 180 | 330 |
| N40UH | 1.25-1.28 | 12.5-12.8 | ≥899 | ≥11.3 | ≥1990 | ≥25 | 302-326 | 38-41 | -0.11 | -0.60 | 180 | 330 |
| N42UH | 1.28-1.32 | 12.8-13.2 | ≥899 | ≥11.3 | ≥1990 | ≥25 | 318-342 | 40-43 | -0.11 | -0.60 | 180 | 330 |
| N45UH | 1.32-1.36 | 13.2-13.6 | ≥908 | ≥11.4 | ≥1990 | ≥25 | 342-366 | 43-46 | -0.11 | -0.60 | 180 | 330 |
| N48UH | 1.37-1.43 | 13.7-14.3 | ≥908 | ≥11.4 | ≥1990 | ≥25 | 366-390 | 46-49 | -0.11 | -0.60 | 180 | 330 |
| N28EH | 1.04-1.08 | 10.4-10.8 | ≥780 | ≥9.8 | ≥2388 | ≥30 | 207-231 | 26-29 | -0.11 | -0.55 | 200 | 330 |
| N30EH | 1.08-1.13 | 10.8-11.3 | ≥812 | ≥10.2 | ≥2388 | ≥30 | 223-247 | 28-31 | -0.11 | -0.55 | 200 | 330 |
| N33EH | 1.13-1.17 | 11.3-11.7 | ≥836 | ≥10.5 | ≥2388 | ≥30 | 247-271 | 31-34 | -0.11 | -0.55 | 200 | 330 |
| N35EH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥2388 | ≥30 | 263-287 | 33-36 | -0.11 | -0.55 | 200 | 330 |
| N38EH | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 287-310 | 36-39 | -0.11 | -0.55 | 200 | 330 |
| N40EH | 1.25-1.28 | 12.5-12.8 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 302-326 | 38-41 | -0.11 | -0.55 | 200 | 330 |
| N42EH | 1.28-1.32 | 12.8-13.2 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 318-342 | 40-43 | -0.11 | -0.55 | 200 | 330 |
| N45EH | 1.32-1.36 | 13.2-13.6 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 342-366 | 43-46 | -0.11 | -0.55 | 200 | 330 |
| N48EH | 1.37-1.43 | 13.7-14.3 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 366-390 | 46-49 | -0.11 | -0.55 | 200 | 330 |
| N28AH | 1.04-1.08 | 10.4-10.8 | ≥787 | ≥9.9 | ≥2624 | ≥33 | 207-231 | 26-29 | -0.10 | -0.50 | 230 | 350 |
| N30AH | 1.08-1.13 | 10.8-11.3 | ≥819 | ≥10.3 | ≥2624 | ≥33 | 223-247 | 28-31 | -0.10 | -0.50 | 230 | 350 |
| N33AH | 1.13-1.17 | 11.3-11.7 | ≥843 | ≥10.6 | ≥2624 | ≥33 | 247-271 | 31-34 | -0.10 | -0.50 | 230 | 350 |
| N35AH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥2624 | ≥33 | 263-287 | 33-36 | -0.10 | -0.50 | 230 | 350 |
| N38AH | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥2624 | ≥33 | 287-310 | 36-39 | -0.10 | -0.50 | 230 | 350 |
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