1.Sintered NdFeB magent has been commercially available since Novermber 1983. NdFeB magnets offer the highest energy product of any material today and are available in very wide range of shapes, sizes and grade.
2.Application:
Voice coil motors, high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors and loudspeakers.
3.Production Process:
3.Production Process:
Raw Material—Mixing—Vacuun Melting—Powder Production—Molding—Vacuun Sintering—Testing—Cutting and Grinding—Surface Coating—Inspection—Packing
4.Performance:
4.Performance:
| Grade | Remanence | Coercive Force | Intrinsic Coercive Force | Max. energy product | Max. Operating Temperature |
| Br mT (kGs) | Hcb kA/m (kOe) | Hcj kA/m (kOe) | ( BH )max kJ/m3 (MGOe) | Tw | |
| N35 | 1170-1220 (11.7-12.2) | ≥ 868 ( ≥ 10.9) | ≥ 955 ( ≥ 12) | 263-287 (33-36) | 80 ℃ |
| N38 | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 955 ( ≥ 12) | 287-310 (36-39) | 80 ℃ |
| N42 | 1280-1320 (12.8-13.2) | ≥ 915 ( ≥ 11.5) | ≥ 955 ( ≥ 12) | 318-342 (40-43) | 80 ℃ |
| N45 | 1320-1380 (13.2-13.8) | ≥ 923 ( ≥ 11.6) | ≥ 955 ( ≥ 12) | 342-366 (43-46) | 80 ℃ |
| N48 | 1380-1420 (13.8-14.2) | ≥ 923 ( ≥ 11.6) | ≥ 876 ( ≥ 12) | 366-390 (46-49) | 80 ℃ |
| N50 | 1400-1450 (14.0-14.5) | ≥ 796 ( ≥ 10.0) | ≥ 876 ( ≥ 11) | 382-406 (48-51) | 60 ℃ |
| N52 | 1430-1480 (14.3-14.8) | ≥ 796 ( ≥ 10.0) | ≥ 876 ( ≥ 11) | 398-422 (50-53) | 60 ℃ |
| 30M | 1080-1130 (10.8-11.3) | ≥ 796 ( ≥ 10.0) | ≥ 1114 ( ≥ 14) | 223-247 (28-31) | 100 ℃ |
| 33M | 1130-1170 (11.3-11.7) | ≥ 836 ( ≥ 10.5) | ≥ 1114 ( ≥ 14) | 247-263 (31-33) | 100 ℃ |
| 35M | 1170-1220 (11.7-12.2) | ≥ 868 ( ≥ 10.9) | ≥ 1114 ( ≥ 14) | 263-287 (33-36) | 100 ℃ |
| 38M | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 1114 ( ≥ 14) | 287-310 (36-39) | 100 ℃ |
| 40M | 1250-1280 (12.5-12.8) | ≥ 923 ( ≥ 11.6) | ≥ 1114 ( ≥ 14) | 302-326 (38-41) | 100 ℃ |
| 42M | 1280-1320 (12.8-13.2) | ≥ 955 ( ≥ 12.0) | ≥ 1114 ( ≥ 14) | 318-342 (40-43) | 100 ℃ |
| 45M | 1320-1380 (13.2-13.8) | ≥ 995 ( ≥ 12.5) | ≥ 1114 ( ≥ 14) | 342-366 (43-46) | 100 ℃ |
| 48M | 1360-1430 (13.6-14.3) | ≥ 1027 ( ≥ 12.9) | ≥ 1114 ( ≥ 14) | 366-390 (46-49) | 100 ℃ |
| 50M | 1400-1450 (14.0-14.5) | ≥ 1033 ( ≥ 13.0) | ≥ 1114 ( ≥ 14) | 382-406 (48-51) | 100 ℃ |
| 30H | 1080-1130 (10.8-11.3) | ≥ 796 ( ≥ 10.0) | ≥ 1353 ( ≥ 17) | 223-247 (28-31) | 120 ℃ |
| 33H | 1130-1170 (11.3-11.7) | ≥ 836 ( ≥ 10.5) | ≥ 1353 ( ≥ 17) | 247-271 (31-34) | 120 ℃ |
| 35H | 1170-1220 (11.7-12.2) | ≥ 868 ( ≥ 10.9) | ≥ 1353 ( ≥ 17) | 263-287 (33-36) | 120 ℃ |
| 38H | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 1353 ( ≥ 17) | 287-310 (36-39) | 120 ℃ |
| 40H | 1250-1280 (12.5-12.8) | ≥ 923 ( ≥ 11.6) | ≥ 1353 ( ≥ 17) | 302-326 (38-41) | 120 ℃ |
| 42H | 1280-1320 (12.8-13.2) | ≥ 955 ( ≥ 12.0) | ≥ 1353 ( ≥ 17) | 318-342 (40-43) | 120 ℃ |
| 45H | 1300-1360 (13-13.6) | ≥ 963 ( ≥ 12.1) | ≥ 1353 ( ≥ 17) | 326-358 (43-46) | 120 ℃ |
| 48H | 1370-1430 (13.7-14.3) | ≥ 995 ( ≥ 12.5) | ≥ 1353 ( ≥ 17) | 366-390 (46-49) | 120 ℃ |
| 30SH | 1080-1130 (10.8-11.3) | ≥ 804 ( ≥ 10.1) | ≥ 1592 ( ≥ 20) | 223-247 (28-31) | 150 ℃ |
| 33SH | 1130-1170 (11.3-11.7) | ≥ 844 ( ≥ 10.6) | ≥ 1592 ( ≥ 20) | 247-271 (31-34) | 150 ℃ |
| 35SH | 1170-1220 (11.7-12.2) | ≥ 876 ( ≥ 11.0) | ≥ 1592 ( ≥ 20) | 263-287 (33-36) | 150 ℃ |
| 38SH | 1220-1250 (12.2-12.5) | ≥ 907 ( ≥ 11.4) | ≥ 1592 ( ≥ 20) | 287-310 (36-39) | 150 ℃ |
| 40SH | 1240-1280 (12.5-12.8) | ≥ 939 ( ≥ 11.8) | ≥ 1592 ( ≥ 20) | 302-326 (38-41) | 150 ℃ |
| 42SH | 1280-1320 (12.8-13.2) | ≥ 987 ( ≥ 12.4) | ≥ 1592 ( ≥ 20) | 318-342 (40-43) | 150 ℃ |
| 45SH | 1320-1380 (13.2-13.8) | ≥ 1003 ( ≥ 12.6) | ≥ 1592 ( ≥ 20) | 342-366 (43-46) | 150 ℃ |
| 28UH | 1020-1080 (10.2-10.8) | ≥ 764 ( ≥ 9.6) | ≥ 1990 ( ≥ 25) | 207-231 (26-29) | 180 ℃ |
| 30UH | 1080-1130 (10.8-11.3) | ≥ 812 ( ≥ 10.2) | ≥ 1990 ( ≥ 25) | 223-247 (28-31) | 180 ℃ |
| 33UH | 1130-1170 (11.3-11.7) | ≥ 852 ( ≥ 10.7) | ≥ 1990 ( ≥ 25) | 247-271 (31-34) | 180 ℃ |
| 35UH | 1180-1220 (11.8-12.2) | ≥ 860 ( ≥ 10.8) | ≥ 1990 ( ≥ 25) | 263-287 (33-36) | 180 ℃ |
| 38UH | 1220-1250 (12.2-12.5) | ≥ 876 ( ≥ 11.0) | ≥ 1990 ( ≥ 25) | 287-310 (36-39) | 180 ℃ |
| 40UH | 1240-1280 (12.5-12.8) | ≥ 899 ( ≥ 11.3) | ≥ 1990 ( ≥ 25) | 302-326 (38-41) | 180 ℃ |
| 28EH | 1040-1090 (10.4-10.9) | ≥ 780 ( ≥ 9.8) | ≥ 2388 ( ≥ 30) | 207-231 (26-29) | 200 ℃ |
| 30EH | 1080-1130 (10.8-11.3) | ≥ 812 ( ≥ 10.2) | ≥ 2388 ( ≥ 30) | 223-247 (28-31) | 200 ℃ |
| 33EH | 1130-1170 (11.3-11.7) | ≥ 836 ( ≥ 10.5) | ≥ 2388 ( ≥ 30) | 247-271 (31-34) | 200 ℃ |
| 35EH | 1170-1220 (11.7-12.2) | ≥ 876 ( ≥ 11.0) | ≥ 2388 ( ≥ 30) | 263-287 (33-36) | 200 ℃ |
| 38EH | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 2388 ( ≥ 30) | 287-310 (36-39) | 200 ℃ |
