1. These sintered NdFeB magnets features a cylindrical permanent alloy magnet housed in a stainless steel pot or case. 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. This cylinder type magnet can be in large length, about 50mm long
We can supply the rough, so that customers can cut the magnet into the length they need.
3. Available Coating: Nickel+Nickel, Copper+Nickel, Zinc, Nickel, Epoxy Black, Copper, Gold…
4. Available grade: Full grade N30-N50, include N,SH, UH, EH series
5. Magnetization direction: Radial and axial
6. Size: According to clients' request
7. Application feild: aviation, instruments, sensors, motors, speakers, microphones, electronics, magnetic separation, magnetic hook, magnetic pickup tools, cow magnets, magnetic health device(Therapy magnets), magnetic filter, magnetic rods, and so on.
Sintered NdFeB Magnets |
Magnetic Characteristics And Physical Properties of Sintered NdFeB |
Properties | Remanence | Coercive Force | Intrinsic Coercive Force | Max Energy Product | Max Working Temp |
| Br | Hcb | Hcj | (BH)max | Tw |
Grade | mT(KGs) | KA/m (KGs) | KA/m (KOe) | KJ/m 3 ( MGOe ) | ℃ |
N-30 | 1080-1130 | ≥ 796 | ≥ 955 | 223-247 | ≤ 80 |
(10.8-11.3) | ( ≥ 10) | ( ≥ 12) | (28-31) |
N-33 | 1130-1180 | ≥ 836 | ≥ 955 | 247-270 | ≤ 80 |
(11.3-11.8) | ( ≥ 10.5) | ( ≥ 12) | (31-34) |
N-35 | 1170-1220 | ≥ 868 | ≥ 955 | 263-287 | ≤ 80 |
(11.7-12.2) | ( ≥ 10.9) | ( ≥ 12) | (33-36) |
N-38 | 1220-1250 | ≥ 899 | ≥ 955 | 287-310 | ≤ 80 |
(12.2-12.5) | ( ≥ 11.3) | ( ≥ 12) | (36-39) |
N-40 | 1250-1280 | ≥ 923 | ≥ 955 | 302-326 | ≤ 80 |
(12.5-12.8) | ( ≥ 11.6) | ( ≥ 12) | (38-41) |
N-42 | 1280-1320 | ≥ 923 | ≥ 955 | 318-342 | ≤ 80 |
(12.8-13.2) | ( ≥ 11.6) | ( ≥ 12) | (40-43) |
N-45 | 1320-1380 | ≥ 876 | ≥ 955 | 342-366 | ≤ 80 |
(13.2-13.8) | ( ≥ 11.0) | ( ≥ 12) | (43-46) |
N-48 | 1380-1420 | ≥ 836 | ≥ 876 | 366-390 | ≤ 80 |
(13.8-14.2) | ( ≥ 10.5) | ( ≥ 11) | (46-49) |
N-50 | 1400-1450 | ≥ 860 | ≥ 876 | 382-406 | ≤ 80 |
(14.0-14.5) | ( ≥ 10.8) | ( ≥ 11) | (48-51) |
30M | 1080-1130 | ≥ 796 | ≥ 1114 | 223-247 | ≤ 100 |
(10.8-11.3) | ( ≥ 10) | ( ≥ 14) | (28-31) |
33M | 1130-1180 | ≥ 836 | ≥ 1114 | 247-270 | ≤ 100 |
(11.3-11.8) | ( ≥ 10.5) | ( ≥ 14) | (31-34) |
35M | 1170-1220 | ≥ 868 | ≥ 1114 | 263-287 | ≤ 100 |
(11.7-12.2) | ( ≥ 10.9) | ( ≥ 14) | (33-36) |
38M | 1220-1250 | ≥ 899 | ≥ 1114 | 287-310 | ≤ 100 |
(12.2-12.5) | ( ≥ 11.3) | ( ≥ 14) | (36-39) |
40M | 1250-1280 | ≥ 923 | ≥ 1114 | 302-326 | ≤ 100 |
(12.5-12.8) | ( ≥ 11.6) | ( ≥ 14) | (38-41) |
42M | 1280-1320 | ≥ 955 | ≥ 1114 | 318-342 | ≤ 100 |
12.8-13.2 | ( ≥ 12.0) | ( ≥ 14) | (40-43) |
45M | 1320-1380 | ≥ 995 | ≥ 1114 | 342-366 | ≤ 100 |
(13.2-13.8) | ( ≥ 12.5) | ( ≥ 14) | (43-46) |
48M | 1360-1430 | ≥ 1027 | ≥ 1114 | 366-390 | ≤ 100 |
(13.6-14.3) | ( ≥ 12.9) | ( ≥ 14) | (46-49) |
50M | 1400-1450 | ≥ 1033 | ≥ 1114 | 382-406 | ≤ 100 |
(14.0-14.5) | ( ≥ 13.0) | ( ≥ 14) | (48-51) |
30H | 1080-1130 | ≥ 796 | ≥ 1353 | 223-247 | ≤ 120 |
(10.8-11.3) | ( ≥ 10) | ( ≥ 17) | (28-31) |
33H | 1130-1180 | ≥ 836 | ≥ 1353 | 247-271 | ≤ 120 |
(11.3-11.8) | ( ≥ 10.5) | ( ≥ 17) | (31-34) |
35H | 1170-1220 | ≥ 868 | ≥ 1353 | 263-287 | ≤ 120 |
(11.7-12.2) | ( ≥ 10.9) | ( ≥ 17) | (33-36) |
38H | 1220-1250 | ≥ 899 | ≥ 1353 | 287-310 | ≤ 120 |
(12.2-12.5) | ( ≥ 11.3) | ( ≥ 17) | (36-39) |
40H | 1250-1280 | ≥ 923 | ≥ 1353 | 302-326 | ≤ 120 |
(12.5-12.8) | ( ≥ 11.6) | ( ≥ 17) | (38-41) |
42H | 1280-1320 | ≥ 955 | ≥ 1353 | 318-342 | ≤ 120 |
(12.8-13.2) | ( ≥ 12.0) | ( ≥ 17) | (40-43) |
45H | 1320-1380 | ≥ 963 | ≥ 1353 | 342-366 | ≤ 120 |
(13.2-13.8) | ( ≥ 12.1) | ( ≥ 17) | (43-46) |
48H | 1370-1430 | ≥ 995 | ≥ 1274 | 366-390 | ≤ 120 |
(13.7-14.3) | ( ≥ 12.5) | ( ≥ 16) | (46-49) |
30SH | 1080-1130 | ≥ 804 | ≥ 1592 | 223-247 | ≤ 150 |
(10.8-11.3) | ( ≥ 10.1) | ( ≥ 20) | (28-31) |
33SH | 1130-1170 | ≥ 844 | ≥ 1592 | 247-271 | ≤ 150 |
(11.3-11.7) | ≥ 10.6 | ( ≥ 20) | (31-34) |
35SH | 1170-1220 | ≥ 876 | ≥ 1592 | 263-287 | ≤ 150 |
(11.7-12.2) | ( ≥ 11.0) | ( ≥ 20) | (33-36) |
38SH | 1220-1250 | ≥ 907 | ≥ 1592 | 287-310 | ≤ 150 |
(12.2-12.5) | ( ≥ 11.4) | ( ≥ 20) | (36-39) |
40SH | 1250-1280 | ≥ 939 | ≥ 1592 | 302-326 | ≤ 150 |
(12.5-12.8) | ( ≥ 11.8) | ( ≥ 20) | (38-41) |
42SH | 1280-1320 | ≥ 995 | ≥ 1592 | 318-342 | ≤ 150 |
(12.8-13.2) | ( ≥ 12.5) | ( ≥ 20) | (40-43) |
45SH | 1320-1380 | ≥ 1003 | ≥ 1592 | 342-366 | ≤ 150 |
(13.2-13.8) | ( ≥ 12.6) | ( ≥ 20) | (43-46) |
28UH | 1020-1080 | ≥ 764 | ≥ 1990 | 207-231 | ≤ 180 |
(10.2-10.8) | ( ≥ 9.6) | ( ≥ 25) | (26-29) |
30UH | 1080-1130 | ≥ 812 | ≥ 1990 | 223-247 | ≤ 180 |
(10.8-11.3) | ( ≥ 10.2) | ( ≥ 25) | (28-31) |
33UH | 1130-1170 | ≥ 852 | ≥ 1990 | 247-271 | ≤ 180 |
(11.3-11.7) | ( ≥ 10.7) | ( ≥ 25) | (31-34) |
35UH | 1180-1220 | ≥ 860 | ≥ 1990 | 263-287 | ≤ 180 |
(11.8-12.2) | ( ≥ 10.8) | ( ≥ 25) | (33-36) |
38UH | 1220-1250 | ≥ 907 | ≥ 1990 | 287-310 | ≤ 180 |
(12.2-12.5) | ( ≥ 11.4) | ( ≥ 25) | (36-39) |
30EH | 1080-1130 | ≥ 812 | ≥ 2388 | 223-247 | ≤ 200 |
(10.8-11.3) | ( ≥ 10.2) | ( ≥ 30) | (28-31) |
33EH | 1130-1170 | ≥ 812 | ≥ 2388 | 247-271 | ≤ 200 |
(11.3-11.7) | ( ≥ 10.2) | ( ≥ 30) | (31-34) |
35EH | 1170-1220 | ≥ 876 | ≥ 2388 | 263-287 | ≤ 200 |
(11.7-12.2) | ( ≥ 11.0) | ( ≥ 30) | (33-36) |
30AH | 1080-1130 | ≥ 812 | ≥ 2785 | 223-247 | ≤ 240 |
(10.8-11.3) | ( ≥ 10.2) | ( ≥ 35) | (28-31) |
33AH | 1130-1170 | ≥ 812 | ≥ 2785 | 247-271 | ≤ 240 |
(11.3-11.7) | ( ≥ 10.2) | ( ≥ 35) | 31-34 |
| | | | | |
NOTES: |
The above-mentioned data of magnetic parameters and physical properties ars given at room temperature. |
The maximum service temperature of magnet is changeable due to the ratio length and diameter and |
Environmental factors. |
Density: 7.4~7.6g/cm 3 ; α Br:-0.09~0.13%/ ℃, β Hcj: -0.50~0.80%/ ℃; Hv:600. |
The demagnetized curve of
sintered NdFeB magnet