1. This is
neodymium magnet. the
neodymium magnets mainly have two classification according to different production process, the
sintered neodymium magnet and
bonded neodymium magnet.
2. The
neodymium magnets also have another name is
NdFeB magnet,
Becuase it's the mainly chemical composition are
neodymium(
Nd), iron(Fe) and boron(B).
The picture's product is
sintered NdFeB magnet.
3.
Block Magnet is one regular shape of
Sintered NdFeB permanent magnets.
It is always manufactured via Cutting, grinding and so on. Block magnets or
Rectangle magnets have the following important factors such as, Length,Width, Thicknes, Round Edge etc.
Block
magnets are mainly used in MRI equipment, magnetic separator machine and liner motors.
|
Magnetic Characteristics And Physical Properties of Sintered NdFeB magnet:
|
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
N35 grade