product: Super Quality Ring Magnet with four counter sunk hole
Neodymium Iron Boron (NdFeB) magnets, the most powerful permanent magnets available today, possess high energy up to 52MGOe and wonderful coercive force. As the third generation of Rare Earth magnet, NdFeB magnets are less brittle than SmCo, and the cost is much more resonable.
Neodymium Iron Boron (NdFeB) magnets, the most powerful permanent magnets available today, possess high energy up to 52MGOe and wonderful coercive force. As the third generation of Rare Earth magnet, NdFeB magnets are less brittle than SmCo, and the cost is much more resonable.
Sintered NdFeB Magnets are prone to corrosion in humid environments. So they usually need surface treatment according to customer's requirements to protect magnet. We can offer the plating included: Ni, Zn, Ni-Cu-Ni, Silver, Gold, Passivation, Epoxy Resin, etc.
Sintered NdFeB magnets are widely used in DC motors, linear motors, loud speakers, MRI, medical apparatus, transmission machine, lifting machine, and so on.
1. ProcessFlow:
Raw Material------Mixing-----Melting-----Powder-----Pressing-----Sintering----Magnetic Testing-----Cutting & Grinding-----Coating-----Inspection-----Packing and shipping
2. It can be easily formed into various sizes.
3. Smaller size and lighter weight in designing devices
4. Grade: N35-N52, 33M-50M, 30H-48H, 30SH-45SH, 30UH-40UH, 28EH-38EH, 30AH-33AH.
5.High energy range from 30MGOe to 53MGOe with wonderful coercive force
6. For most applications, coating or plating is recommended.
6. For most applications, coating or plating is recommended.
7. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on.
8. Advantages:
a) High energy
b) Very high Hc and Hci output
c) More economical than SmCo
d) Wonderful performance at ambient temperature
a) High energy
b) Very high Hc and Hci output
c) More economical than SmCo
d) Wonderful performance at ambient temperature
9. Disadvantages:
a) Working temperature is below 220°C.
b) Prone to oxidation than other magnet alloys
10. Applications: Widly used in industrial areas and Micro products, such as Motor, sensors, loudspeaker, windmill, Auto, National defence, Speaker, Computer, Biology project, Medical treatment, Instrument and Meter etc.
a) Working temperature is below 220°C.
b) Prone to oxidation than other magnet alloys
10. Applications: Widly used in industrial areas and Micro products, such as Motor, sensors, loudspeaker, windmill, Auto, National defence, Speaker, Computer, Biology project, Medical treatment, Instrument and Meter etc.
| Magnetic Characteristics And Physical Properties of Sintered Nd-Fe-B | |||||
| Charactreistic | Remanence | Coerciv Force | Intrinsic Coercive | Max Enery Product | Maximum working |
| Grade | Br mb(KG) | hcb Koe(KA/m) | iHC Koe(KA/m) | (BH) max | temperature |
| KJ/m2(MGOe) | Tw°C | ||||
| N35 | 1170-1210 | ≥10.8 (≥860) | ≥12 (≥955) | 263-287(33-36) | 80 |
| N38 | 1210-1250 | ≥10.8 (≥860) | ≥12 (≥955) | 287-310(36-39) | 80 |
| N40 | 1250-1280 | ≥11.6 (≥923) | ≥12 (≥955) | 302-326(38-41) | 80 |
| N42 | 1280-1320 | ≥11.6 (≥923) | ≥12 (≥955) | 318-342(40-43) | 80 |
| N45 | 1320-1380 | ≥11.0 (≥876) | ≥12 (≥955) | 342-366(43-46) | 80 |
| N48 | 1380-1420 | ≥10.5 (≥835) | ≥12 (≥955) | 366-390(46-49) | 80 |
| N50 | 1380-1450 | ≥10.5 (≥835) | ≥11 (≥955) | 374-406(47-51) | 80 |
| N52 | 1430-1480 | ≥10.8 (≥860) | ≥11 (≥876) | 398-422(50-53) | 80 |
| 35M | 1170-1210 | ≥10.8 (≥860) | ≥14 (≥1114) | 263-287(33-36) | 100 |
| 38M | 1210-1250 | ≥11.0 (≥876) | ≥14 (≥1114) | 287-310(36-39) | 100 |
| 40M | 1250-1280 | ≥11.4 (≥907) | ≥14 (≥1114) | 302-326(38-41) | 100 |
| 42M | 1280-1320 | ≥11.6 (≥923) | ≥14 (≥1114) | 318-342(40-43) | 100 |
| 45M | 1320-1380 | ≥11.8 (≥939) | ≥14 (≥1114) | 342-366(43-46) | 100 |
| 48M | 1360-1400 | ≥11.8 (≥939) | ≥14 (≥1114) | 366-390(46-49) | 100 |
| 50M | 1400-1450 | ≥13.0 (≥1033) | ≥14 (≥1114) | 382-406(48-51) | 100 |
| 33H | 1130-1170 | ≥10.6 (≥844) | ≥17 (≥1353) | 247-263(31-33) | 120 |
| 35H | 1170-1210 | ≥11.0 (≥876) | ≥17 (≥1353) | 263-287(33-36) | 120 |
| 38H | 1210-1250 | ≥11.2 (≥890) | ≥17 (≥1353) | 287-310(36-39) | 120 |
| 40H | 1250-1280 | ≥11.5 (≥915) | ≥17 (≥1353) | 302-326(38-41) | 120 |
| 42H | 1280-1320 | ≥12.0 (≥955) | ≥17 (≥1353) | 318-342(40-43) | 120 |
| 45H | 1320-1380 | ≥12.0 (≥955) | ≥17 (≥1353) | 335-366(42-46) | 120 |
| 46H | 1330-1380 | ≥12.2 (≥972) | ≥16 (≥1274) | 350-374(44-47) | 120 |
| 48H | 1360-1430 | ≥12.5 (≥995) | ≥16 (≥1274) | 366-390(46-49) | 120 |
| 33SH | 1130-1170 | ≥10.6 (≥844) | ≥20 (≥1672) | 247-263(31-33) | 150 |
| 35SH | 1170-1210 | ≥11.0 (≥876) | ≥20 (≥1672) | 263-287(33-36) | 150 |
| 38SH | 1210-1250 | ≥11.4 (≥907) | ≥20 (≥1672) | 287-310(36-39) | 150 |
| 40SH | 1250-1280 | ≥11.8 (≥939) | ≥20 (≥1672) | 302-326(38-41) | 150 |
| 42SH | 1280-1320 | ≥11.8 (≥939) | ≥20 (≥1672) | 320-342(40-43) | 150 |
| 45SH | 1320-1380 | ≥12.6 (≥1003) | ≥20 (≥1592) | 342-366(43-46) | 150 |
| 33UH | 1130-1170 | ≥10.7 (≥852) | ≥25 (≥1990) | 247-263(31-33) | 180 |
| 35UH | 1170-1210 | ≥10.7 (≥852) | ≥25 (≥1990) | 263-287(33-36) | 180 |
| 38UH | 1210-1250 | ≥11.4 (≥907) | ≥25 (≥1990) | 287-310(36-39) | 180 |
| 40UH | 1250-1280 | ≥11.4 (≥907) | ≥25 (≥1990) | 302-326(38-41) | 180 |
| 30EH | 1080-1130 | ≥9.5 (≥756) | ≥30 (≥2388) | 223-247(28-31) | 200 |
| 33EH | 1130-1170 | ≥10.2 (≥812) | ≥30 (≥2388) | 247-263(31-33) | 200 |
| 35EH | 1170-1210 | ≥10.2 (≥812) | ≥30 (≥2388) | 263-287(33-36) | 200 |
| 38EH | 1210-1250 | ≥11.4 (≥907) | ≥30 (≥2388) | 287-310(36-39) | 200 |
| 30AH | 1080-1130 | ≥10.2 (≥812) | ≥35 (≥2785) | 223-255(28-32) | 220 |
| 33AH | 1120-1170 | ≥10.2 (≥812) | ≥35 (≥2785) | 247-271(31-34) | 220 |
