Block Powerful Znic Coated NdFeB Permanent Magnet for Magnetic
Motor
1, These Sintered NdFeB magnets are particularly suitable for high
volumn production of a wide variety of shape and size ranges.
Precise dimensional control is achieved in both processed and
usually the component does not require futher machining.
2, Injection moulded NdFeB does not normally require coating due to
high corrosion resistance, however coating is recommended for
compression moulded NdFeB
3, Neodymium Iron Boron (NdFeB) magnets, a sort of Rare Earth
magnet material, has the high remanence, high coercive force, high
Maximum energy and is easily formed into various sizes, shapes. So
they have been widely used in commercially available fields....
4, It can be manufactured by sintering, compression bonding,
injection molding, and extrusion. The sintered form holds the
highest energy product of up to 52MGOe, while the bonded form holds
a lower energy product of up to 10MGOe. Furthermore, the majority
of NdFeB magnets are anisotropic and can only be magnetized in the
orientation direction.
5, NdFeB Magents are prone to corrosion in humid environments, It
usually needs surface treatment according to customer's
requirements to protect magnet..
For more detail info, please feel free to inquire us at any of your
convenience...
Sintered NdFeB Magnetic Properties| TYPE | Remanence
Br | Coercive force
bHc | Intrinsic coercive force
iHc | Max. energy product
(BH) max | Working MAGNETIC AND PHYSICAL CHARACTERISTICS (NdFeB) Temperature |
| KGs | T | KOe | KA/m | KOe | KA/m | MGOe | KJ/m3 | °C |
| N-30 | 10.8-11.2 | 1.08-1.12 | 9.8-10.5 | 780-836 | ≥12 | ≥955 | 28-30 | 223-239 | ≤80 |
| N-33 | 11.4-11.7 | 1.14-1.17 | 10.5-11.0 | 836-876 | ≥12 | ≥955 | 31-33 | 247-263 | ≤80 |
| N-35 | 11.7-12.1 | 1.17-1.21 | 10.8-11.5 | 860-915 | ≥12 | ≥955 | 33-35 | 263-279 | ≤80 |
| N-36 | 11.9-12.2 | 1.19-1.22 | 10.8-11.5 | 860-915 | ≥12 | ≥955 | 34-36 | 271-287 | ≤80 |
| N-38 | 12.2-12.6 | 1.22-1.26 | 10.8-11.5 | 860-915 | ≥12 | ≥955 | 36-38 | 287-303 | ≤80 |
| N-40 | 12.6-12.9 | 1.26-1.29 | 10.5-11.0 | 836-876 | ≥12 | ≥955 | 38-40 | 303-318 | ≤80 |
| N-42 | 12.9-13.2 | 1.29-1.32 | 10.5-11.0 | 836-876 | ≥12 | ≥955 | 40-42 | 318-334 | ≤80 |
| N-43 | 13.0-13.3 | 1.30-1.33 | 10.5-11.0 | 836-876 | ≥12 | ≥955 | 41-43 | 326-342 | ≤80 |
| N-45 | 13.3-13.7 | 1.33-1.37 | 10.5-11.0 | 836-876 | ≥12 | ≥965 | 43-45 | 342-358 | ≤80 |
| N-48 | 13.8-14.2 | 1.38-1.42 | ≥10.5 | ≥835 | ≥12 | ≥955 | 46-49 | 366-390 | ≤80 |
| N-50 | 13.8-14.5 | 1.38-1.45 | ≥10.5 | ≥835 | ≥11 | ≥955 | 47-51 | 374-406 | ≤80 |
| N-52 | 14.3-14.8 | 1.43-1.48 | ≥10.8 | ≥860 | ≥11 | ≥876 | 50-53 | 398-422 | ≤80 |
| N-27M | 10.2-10.6 | 1.02-1.06 | 9.6-10.1 | 764-804 | ≥15 | ≥1194 | 25-27 | 199-215 | ≤100 |
| N-30M | 10.8-11.2 | 1.08-1.12 | 10.1-10.6 | 804-844 | ≥15 | ≥1194 | 28-30 | 223-239 | ≤100 |
| N-33M | 11.4-11.7 | 1.14-1.17 | 10.5-11.0 | 844-884 | ≥15 | ≥1194 | 31-33 | 247-263 | ≤100 |
| N-35M | 11.7-12.1 | 1.17-1.21 | 10.8-11.5 | 860-915 | ≥15 | ≥1114 | 33-35 | 263-279 | ≤100 |
| N-36M | 11.9-12.2 | 1.19-1.22 | 11.1-11.6 | 884-923 | ≥15 | ≥1194 | 34-36 | 271-287 | ≤100 |
| N-38M | 12.2-12.6 | 1.22-1.26 | 10.8-11.5 | 860-915 | ≥14 | ≥1114 | 36-38 | 287-303 | ≤100 |
| N-40M | 12.6-12.9 | 1.26-1.29 | 10.8-11.5 | 860-915 | ≥14 | ≥1114 | 38-40 | 303-318 | ≤100 |
| N-42M | 12.9-13.2 | 1.29-1.32 | 10.8-11.4 | 860-907 | ≥14 | ≥1114 | 40-42 | 318-334 | ≤100 |
| N-45M | 13.3-13.7 | 1.33-1.37 | 10.8-11.4 | 860-907 | ≥17 | ≥1114 | 43-45 | 334-358 | ≤100 |
| N-48M | 13.6-14.0 | 1.36-1.40 | ≥11.8 | ≥939 | ≥14 | ≥1114 | 46-49 | 366-390 | ≤100 |
| N-50M | 14.0-14.5 | 1.40-1.45 | ≥13.0 | ≥1033 | ≥14 | ≥1114 | 48-51 | 382-406 | ≤100 |
| N-27H | 10.2-10.6 | 1.02-1.06 | 9.6-10.1 | 764-804 | ≥17 | ≥1353 | 25-27 | 199-215 | ≤120 |
| N-30H | 10.8-11.2 | 1.08-1.12 | 10.1-10.6 | 804-844 | ≥17 | ≥1353 | 28-30 | 223-239 | ≤120 |
| N-33H | 11.4-11.7 | 1.14-1.17 | 10.6-11.1 | 844-884 | ≥17 | ≥1353 | 31-33 | 247-263 | ≤120 |
| N-35H | 11.7-12.1 | 1.17-1.21 | 10.8-11.5 | 860-915 | ≥17 | ≥1353 | 33-35 | 263-279 | ≤120 |
| N-36H | 11.9-12.2 | 1.19-1.22 | 11.1-11.6 | 884-923 | ≥17 | ≥1353 | 34-36 | 271-287 | ≤120 |
| N-38H | 12.2-12.6 | 1.22-1.26 | 11.5-12.0 | 915-955 | ≥17 | ≥1353 | 36-38 | 287-303 | ≤120 |
| N-40H | 12.6-12.9 | 1.26-1.29 | 11.5-12.0 | 915-955 | ≥17 | ≥1353 | 38-40 | 303-318 | ≤120 |
| N-42H | 12.9-13.2 | 1.29-1.32 | 11.5-12.0 | 915-955 | ≥17 | ≥1353 | 40-42 | 318-334 | ≤120 |
| N-45H | 13.2-13.8 | 1.32-1.38 | ≥12.0 | 955 | ≥17 | ≥1353 | 42-46 | 335-366 | ≤120 |
| N-46H | 13.3-13.8 | 1.33-1.38 | ≥12.2 | 972 | ≥16 | ≥1274 | 44-47 | 350-374 | ≤120 |
| N-48H | 13.6-14.3 | 1.36-1.43 | ≥12.5 | 995 | ≥16 | ≥1274 | 46-49 | 366-390 | ≤120 |
| N-27SH | 10.2-10.6 | 1.02-1.06 | 9.6-10.1 | 764-804 | ≥20 | ≥1592 | 25-27 | 199-215 | ≤150 |
| N-30SH | 10.8-11.2 | 1.08-1.12 | 10.1-10.6 | 804-844 | ≥20 | ≥1592 | 28-30 | 223-239 | ≤150 |
| N-33SH | 11.4-11.7 | 11.4-11.7 | 10.6-11.1 | 844-884 | ≥20 | ≥1592 | 31-33 | 247-263 | ≤150 |
| N-35SH | 11.7-12.1 | 1.17-1.21 | 10.8-11.5 | 860-915 | ≥20 | ≥1595 | 33-35 | 263-279 | ≤150 |
| N-38SH | 12.1-12.5 | 1.21-1.25 | 10.8-11.5 | 860-915 | ≥20 | ≥1592 | 36-38 | 287-302 | ≤150 |
| N-40SH | 12.6-12.9 | 1.26-1.29 | 10.8-11.5 | 860-915 | ≥20 | ≥1592 | 38-40 | 303-318 | ≤150 |
| N-42SH | 12.8-13.2 | 1.28-1.32 | ≥11.8 | ≥939 | ≥20 | ≥1672 | 40-43 | 320-343 | ≤150 |
| N-45SH | 13.2-13.8 | 1.32-1.38 | ≥12.6 | ≥1003 | ≥20 | ≥1592 | 43-46 | 342-366 | ≤150 |
| N25UH | 9.8-10.2 | 0.98-1.02 | 9.2-9.6 | 732-764 | ≥25 | ≥1990 | 23-25 | 183-199 | ≤180 |
| N28UH | 10.4-10.8 | 1.04-1.08 | 9.8-10.2 | 780-812 | ≥25 | ≥1990 | 26-28 | 207-223 | ≤180 |
| N30UH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | ≥25 | ≥1990 | 28-31 | 223-247 | ≤180 |
| N35UH | 11.7-12.1 | 1.17-1.21 | 10.5-11.2 | 836-890 | ≥25 | ≥1989 | 33-35 | 263-278 | ≤180 |
| N38UH | 12.1-12.5 | 1.21-1.25 | ≥11.4 | ≥907 | ≥25 | ≥1990 | 36-39 | 287-310 | ≤180 |
| N40UH | 12.5-12.8 | 1.25-1.28 | ≥11.4 | ≥907 | ≥25 | ≥1990 | 38-41 | 302-326 | ≤180 |
| N28EH | 10.4-10.8 | 1.04-1.08 | 9.8-10.2 | 780-812 | ≥30 | ≥2387 | 26-28 | 207-223 | ≤200 |
| N30EH | 10.8-11.2 | 1.08-1.12 | 10.1-10.6 | 804-844 | ≥30 | ≥2387 | 28-30 | 223-239 | ≤200 |
| N35EH | 11.7-12.1 | 1.17-1.21 | ≥10.2 | ≥812 | ≥30 | ≥2388 | 33-36 | 263-287 | ≤200 |
| N38EH | 12.1-12.5 | 1.21-1.25 | ≥11.4 | ≥907 | ≥30 | ≥2388 | 36-39 | 287-310 | ≤200 |
| N30AH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | ≥35 | ≥2785 | 28-32 | 223-255 | ≤220 |
| N33AH | 11.2-11.7 | 1.12-1.17 | ≥10.2 | ≥812 | ≥35 | ≥2785 | 31-34 | 247-271 | ≤220
|
| Other Physical Properties (Sintered NdFeB) |
| Temp. Coeff. of Br: | -0.11%/° C | Temp. Coeff. of iHc: | -0.60%/° C |
| Density: | 7.4~7.6g/cm 3 | Electrical Resistivity: | 144µ Ω cm |
| Vickers Hardness: | 600HV | Flexural Strength: | 25kg/mm |
| Tensile Strength: | 8kg/mm 2 | Coef. of Thermal Expansion: | 4× 10 -6 /° C |
| Specific Heat: | 0.12kcal/(kg. ° C) | Thermal conductivity: | 7.7kcal/m. h. ° C |
| Young' s Modulus: | 1.6× 10 11 N/m 2 | Rigidity: | 0.64N/m 2 |
| Poisson' s Ratio: | 0.24 | Compressibility: | 9.8x10 -12 m 2 /N |
| Curie Temperature: | 310~340° C | |
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