Cheap large ring NdFeB magnets:
1.Neodymium magnet, NdFeB magnet, permanent magnet, rear earth magnet
2.Material: Sintered Neodymium-iron-boron
3.Products manufactured according to ISO9001 quality system
4. Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology
5. The strongest permanent magnet
6. High coercive force, the max operating up to 200 degree centigrade or 380 curie temperature
7. High quality with competitive prices
8. Grade : N35-N52, 35M-50M, 33H-48H, 30SH-45SH, 28UH-40UH, 28EH-38EH
9. Various shapes and sizes or according to customers' request
10.Various coating to protect magnets such as Ni, Zn, gold copper, epoxy, chemical, and so on
11.Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters, automobiles and so on
12. Coating: Zn C-ZnNiNi-Cu-Ni, Silver, Gold, Epoxy, Black-Ni, Bright-Ni, Etc
13. We could provide you the customized magnets according to your request.
Magnetic property of Sintered NdFeB magnet
| Grade | Br mT(KG) | bHc KA/m(KOe) | lHc KA/m(KOe) | (BH)max KJ/M3 (MGOe) | Max Working tempt.Tw °C |
| N35 | 1170-1210(11.7-12.1) | ≥868(≥10.9) | ≥955(≥12) | 263-287(33-36) | 80 |
| N38 | 1210-1250(12.1-12.5) | ≥899(≥11.3) | ≥955(≥12) | 287-310(36-39) | 80 |
| N40 | 1250-1280(12.5-12.8) | ≥923(≥11.3) | ≥955(≥12) | 302-326(38-41) | 80 |
| N42 | 1280-1320(12.8-13.2) | ≥899(≥11.3) | ≥955(≥12) | 318-342(40-43) | 80 |
| N45 | 1320-1380(13.2-13.8) | ≥876(≥11.0) | ≥955(≥12) | 342-366(43-46) | 80 |
| N48 | 1380-1420(13.8-14.2) | ≥836(≥10.5) | ≥955(≥12) | 366-390(46-49) | 80 |
| N50 | 1420-1450(14.2-14.5) | ≥860(≥10.8) | ≥955(≥12) | 382-406(48-51) | 80 |
| 35M | 1170-1210(11.7-12.1) | ≥868(≥10.9) | ≥1114(≥14) | 263-287(33-36) | 100 |
| 38M | 1210-1250(12.1-12.5) | ≥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) | 350-390(44-49) | 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 | 1170-1210(11.7-12.1) | ≥868(≥10.9) | ≥1353(≥17) | 263-287(33-36) | 120 |
| 38H | 1210-1250(12.1-12.5) | ≥899(≥11.3) | ≥1353(≥17) | 287-310(36-39) | 120 |
| 40H | 1240-1280(12.4-12.8) | ≥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 | 1320-1360(13.2-13.6) | ≥1000(≥12.5) | ≥1360(≥17) | 344-376(43-47) | 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 | 1170-1210(11.7-12.1) | ≥876(≥11.0) | ≥1592(≥20) | 263-287(33-36) | 150 |
| 38SH | 1210-1250(12.1-12.5) | ≥907(≥11.4) | ≥1592(≥20) | 287-310(36-39) | 150 |
| 40SH | 1240-1280(12.4-12.8) | ≥939(≥11.8) | ≥1592(≥20) | 302-326(38-41) | 150 |
| 42SH | 1280-1320(12.8-13.2) | ≥995(≥12.5) | ≥1592(≥20) | 318-342(40-43) | 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 | 1170-1220(11.7-12.2) | ≥860(≥10.8) | ≥1990(≥25) | 263-287(33-36) | 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) | ≥812(≥10.2) | ≥2388(≥30) | 247-271(31-34) | 200 |
