Yuyao Hongwei Magnetic Technology Co., Ltd.
Yuyao Hongwei Magnetic Technology Co., Ltd.
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NdFeB Permanent Magnet
Product Name: Wind generator magnet, Cylinder Neodymium Magnets, NdFeB Rare Earth Magnets, Disc NdFeB Magnets, Block/Rectangular sintered neodymium magnets,Special shaped neodymium magnet
NdFeB Permanent Magnet details:
| Description |
Ndfeb magnet
|
|
| Material | Neodymium-Iron-Boron | |
| Max. working temperature | Grade | Max. Operating Temperature |
| N35-N54 | ≤ 80°C | |
| 35M- 52M | ≤ 100°C | |
| 33H-50H | ≤ 120°C | |
| 33SH-46SH | ≤ 150°C | |
| 30UH-42UH | ≤ 180°C | |
| 30EH-38EH | ≤ 200°C | |
| 28AH-33AH | ≤ 230°C | |
| Shape | ring and any shapes are available. | |
| Coating | Ni, Zn, Ni-Cu-Ni, Epoxy, Gold, Silver, phosphate, passivation | |
| Technology Advantage And Production Capacity | HDDR and JET MILLING technology,1000 tons yearly capacity | |
| Price Advantage | Very competitive price, lower than average market price | |
| Application | TV,Sensors,Servo motor,Motors, Rotors, Wind turbines/wind generators, Loudspeakers, loudhailer,Magnetic hooks & holder, Filters, Automobiles, etc. | |
NdFeB Permanent Magnet production process:
Neodymium magnets are actually composed of neodymium, iron and boron (they are also referred to as NIB or NdFeB magnets). The powdered mixture is pressed under great pressure into molds. The material is then sintered (heated under a vacuum), cooled, and then ground or sliced into the desired shape. Coatings are then applied if required. Finally, the blank magnets are magnetized by exposing them to a very powerful magnetic field in excess of 30 KOe.
NdFeB application range:
Electroacoustic field: speakers, receivers, microphones, alarms, stage sounds, car audio, etc.
Electronic appliances: permanent magnet mechanism vacuum circuit breaker, magnetic holding relay, electric meter, water meter, sound meter, reed switch, sensor, etc.
Motor field: VCM, CD/DVD-ROM, generator, motor, servo motor, micro motor, motor, vibration motor, etc.
Mechanical equipment: magnetic separation, magnetic separator, magnetic crane, magnetic machinery, etc.
Healthcare: Nuclear magnetic resonance instruments, medical devices, magnetic health products, etc.
Other industries: magnetized wax protectors, pipe cleaners, magnetic fixtures, automatic mahjong machines, magnetic locks, door and window magnets, luggage magnets, leather bags, magnetized fuel savers. Magnetic toys, magnetic tools, magnetic craft gift packaging, etc.
Physical properties
| Grade | Remanence | Coercivity Force | Intrinsic Coercive Force | Max. Energy Product | Working Temp. | ||||
| Br | Hcb | Hcj | (BH)max | ||||||
| mT | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | ||
| N35 | 1170-1220 | 11.7-12.2 | ≥ 868 | ≥ 10.9 | ≥ 955 | ≥ 12 | 263-287 | 33-36 | 80 ° C |
| N38 | 1220-1250 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 955 | ≥ 12 | 287-310 | 36-39 | 80 ° C |
| N40 | 1250-1280 | 12.5-12.8 | ≥ 907 | ≥ 11.4 | ≥ 955 | ≥ 12 | 302-326 | 38-41 | 80 ° C |
| N42 | 1280-1320 | 12.8-13.2 | ≥ 915 | ≥ 11.5 | ≥ 955 | ≥ 12 | 318-342 | 40-43 | 80 ° C |
| N45 | 1320-1380 | 13.2-13.8 | ≥ 923 | ≥ 11.6 | ≥ 955 | ≥ 12 | 342-366 | 43-46 | 80 ° C |
| N48 | 1380-1420 | 13.8-14.2 | ≥ 923 | ≥ 11.6 | ≥ 876 | ≥ 12 | 366-390 | 46-49 | 80 ° C |
| N50 | 1400-1450 | 14.0-14.5 | ≥ 796 | ≥ 10.0 | ≥ 876 | ≥ 11 | 382-406 | 48-51 | 60 ° C |
| N52 | 1430-1480 | 14.3-14.8 | ≥ 796 | ≥ 10.0 | ≥ 876 | ≥ 11 | 398-422 | 50-53 | 60 ° C |
| 35M | 1170-1220 | 11.7-12.2 | ≥ 868 | ≥ 10.9 | ≥ 1114 | ≥ 14 | 263-287 | 33-36 | 100 ° C |
| 38M | 1220-1250 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 1114 | ≥ 14 | 287-310 | 36-39 | 100 ° C |
| 40M | 1250-1280 | 12.5-12.8 | ≥ 923 | ≥ 11.6 | ≥ 1114 | ≥ 14 | 302-326 | 38-41 | 100 ° C |
| 42M | 1280-1320 | 12.8-13.2 | ≥ 955 | ≥ 12.0 | ≥ 1114 | ≥ 14 | 318-342 | 40-43 | 100 ° C |
| 45M | 1320-1380 | 13.2-13.8 | ≥ 995 | ≥ 12.5 | ≥ 1114 | ≥ 14 | 342-366 | 43-46 | 100 ° C |
| 48M | 1360-1430 | 13.6-14.3 | ≥ 1027 | ≥ 12.9 | ≥ 1114 | ≥ 14 | 366-390 | 46-49 | 100 ° C |
| 50M | 1400-1450 | 14.0-14.5 | ≥ 1033 | ≥ 13.0 | ≥ 1114 | ≥ 14 | 382-406 | 48-51 | 100 ° C |
| 35H | 1170-1220 | 11.7-12.2 | ≥ 868 | ≥ 10.9 | ≥ 1353 | ≥ 17 | 263-287 | 33-36 | 120 ° C |
| 38H | 1220-1250 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 1353 | ≥ 17 | 287-310 | 36-39 | 120 ° C |
| 40H | 1250-1280 | 12.5-12.8 | ≥ 923 | ≥ 11.6 | ≥ 1353 | ≥ 17 | 302-326 | 38-41 | 120 ° C |
| 42H | 1280-1320 | 12.8-13.2 | ≥ 955 | ≥ 12.0 | ≥ 1353 | ≥ 17 | 318-342 | v | |