Qingdao Magnet Magnetic Material Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 10 Million per day |
| Delivery Time | 15-25 days |
| Packaging Details | Iron Sheet Sheilding Packing, Wooden Carton, Customized Packing |
| Material | Sintered Neodymium Iron Boron, NdFeB Magnet,Rare Earth Permanent Magnetic Material |
| Type | Permanent Magnetic Material |
| Grade | N35-N54, M,H,SH,UH,ET,TH |
| Shape | Block, Cylinder, Ring, Arc, Thin Sheet, Disc, Complex Shape |
| Working Temp. | Max. 80 to 250℃ |
| Coating | Nickel, Zinc, Epoxy, Gold, Silver, Aluminum, Parylene, Everlube, Paint, Phosphating |
| Color | Silver |
| Application | Automotive, Mobile, Computuer, Generator, Motor, Sensor, Washing Machine |
| Size | Custimized Size |
| Tolerance | ±0.02mm |
| Brand Name | MGT |
| Model Number | MGT-Sintered NdFeB Magnet |
| Certification | ISO9001：2015 |
| Place of Origin | Shandong, China |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 10 Million per day |
| Delivery Time | 15-25 days | Packaging Details | Iron Sheet Sheilding Packing, Wooden Carton, Customized Packing |
| Material | Sintered Neodymium Iron Boron, NdFeB Magnet,Rare Earth Permanent Magnetic Material | Type | Permanent Magnetic Material |
| Grade | N35-N54, M,H,SH,UH,ET,TH | Shape | Block, Cylinder, Ring, Arc, Thin Sheet, Disc, Complex Shape |
| Working Temp. | Max. 80 to 250℃ | Coating | Nickel, Zinc, Epoxy, Gold, Silver, Aluminum, Parylene, Everlube, Paint, Phosphating |
| Color | Silver | Application | Automotive, Mobile, Computuer, Generator, Motor, Sensor, Washing Machine |
| Size | Custimized Size | Tolerance | ±0.02mm |
| Brand Name | MGT | Model Number | MGT-Sintered NdFeB Magnet |
| Certification | ISO9001：2015 | Place of Origin | Shandong, China |
| High Light | Permanent N38 NdFeB Magnet ，Silver Permanent NdFeB Magnet ，Sintered Generator Neodymium Magnet | ||
18.5×14.45×3.3 ±0.1mm NdFeB Magnet Sintered Magnet
Sintered NdFeB Magnets
Sintered Neodymium Iron Boron (NdFeB) magnets, also widely known as "new" magnets, have been on the market since 1984. They offer the highest energy products of any material available today and are available in a variety of shapes, sizes and grades. Applications include voice coil motors (VCMs) in hard disk drives, automotive motors, Hi-Fi systems, high performance motors, brushless DC motors, magnetic separation, MRI, sensors and other magnetic tools.
Sintered neodymium (NdFeB) magnets began to appear in the late 1970s and were commercialized in the early 1980s. Initially, their energy products ranged from 14 MGOe to 18 MGOe. Currently their energy products range from 30 MGOe to 52 MGOe, who knows what will be available tomorrow. Operating temperature ranges from -40⁰C to 220⁰C maximum, depending on grade type.
Sintered Neodymium Iron Boron (NdFeB) magnets, also widely known as "new" magnets, have been on the market since 1984. They offer the highest energy products of any material available today and are available in a variety of shapes, sizes and grades. Applications include automotive steering columns, EPS motors, induction magnets, and voice coil motors (VCMs) in hard disk drives, Hi-Fi systems, high-performance motors, brushless DC motors, magnetic separation, MRI, sensors, and other magnetic tools.
Sintered Neodymium (NdFeB) magnets have revolutionized the entire wireless power tool industry, wireless cell phones, MRI and miniaturized many sensors, computer hard drives, micro motors, optical isolators, and more. Neodymium magnets are prone to oxidation, mainly due to the iron (Fe) content in the magnet formulation. To overcome this problem, many coatings can be used to stop or prevent oxidation, they are: Nickel (Ni), Nickel-Copper-Nickel (Ni-Cu-Ni), Zinc (Zn), Parylene, Epoxy and gold (Au). The operating environment to which the magnet will be exposed should be considered in order to determine a suitable coating.
Magnetic Process
Magnetic Parameters
| QINGDAO MAGNET MAGNETIC MATERIAL CO.,LTD. Sintered NdFeB Magnet Performance Parameter | |||||||||||||
| Grade | Br(20℃) | Coercivity | BH(max)(20℃) | Temperature Coefficient | Density | Max.Working Temp. | ||||||||
| Br | Hcj | Hcb | BH(max) MGOe | T1-T2 | TK(Br) Reference | TK(Hcj) Reference | ρ Reference | Tmax Reference | ||||||
| T | KGs | kA/m | kOe | kA/m | kOe | kJ/m³ | MGOe | ℃ | ％/℃ | ％/℃ | g/cm³ | ℃ | ℉ | |
| N35 | 1.18-1.24 | 11.8-12.4 | ≥955 | ≥12 | ≥860 | ≥10.8 | 263-295 | 33-37 | 20-80 | -0.105 | -0.75 | 7.45 | 80 | 176 |
| N38 | 1.23-1.28 | 12.3-12.8 | ≥955 | ≥12 | ≥899 | ≥11.3 | 287-310 | 36-39 | 7.45 | 80 | 176 | |||
| N40 | 1.26-1.31 | 12.6-13.1 | ≥955 | ≥12 | ≥915 | ≥11.5 | 302-326 | 38-41 | 7.45 | 80 | 176 | |||
| N42 | 1.29-1.34 | 12.9-13.4 | ≥955 | ≥12 | ≥915 | ≥11.5 | 318-350 | 40-44 | 7.50 | 80 | 176 | |||
| N45 | 1.33-1.38 | 13.3-13.8 | ≥955 | ≥12 | ≥915 | ≥11.5 | 342-366 | 43-46 | 7.50 | 80 | 176 | |||
| N48 | 1.37-1.41 | 13.7-14.1 | ≥955 | ≥12 | ≥915 | ≥11.5 | 358-382 | 45-48 | 7.55 | 80 | 176 | |||
| N50 | 1.39-1.43 | 13.9-14.3 | ≥955 | ≥12 | ≥915 | ≥11.5 | 374-398 | 47-50 | 7.55 | 80 | 176 | |||
| N52 | 1.42-1.47 | 14.2-14.7 | ≥955 | ≥12 | ≥915 | ≥11.5 | 390-414 | 49-52 | 7.60 | 80 | 176 | |||
| N54 | 1.45-1.50 | 14.5-14.0 | ≥876 | ≥11 | ≥836 | ≥10.5 | 406-430 | 51-54 | 7.60 | 80 | 176 | |||
| 35M | 1.18-1.24 | 11.8-12.4 | ≥1114 | ≥14 | ≥868 | ≥10.9 | 263-295 | 33-37 | 20-100 | -0.105 | -0.70 | 7.45 | 100 | 212 |
| 38M | 1.23-1.28 | 12.3-12.8 | ≥1114 | ≥14 | ≥907 | ≥11.4 | 287-310 | 36-39 | 7.45 | 100 | 212 | |||
| 40M | 1.26-1.31 | 12.6-13.1 | ≥1114 | ≥14 | ≥931 | ≥11.7 | 302-326 | 38-41 | 7.50 | 100 | 212 | |||
| 42M | 1.29-1.34 | 12.9-13.4 | ≥1114 | ≥14 | ≥955 | ≥12.0 | 318-350 | 40-44 | 7.50 | 100 | 212 | |||
| 45M | 1.33-1.38 | 13.3-13.8 | ≥1114 | ≥14 | ≥987 | ≥12.4 | 342-366 | 43-46 | 7.55 | 100 | 212 | |||
| 48M | 1.37-1.41 | 13.7-14.1 | ≥1114 | ≥14 | ≥1019 | ≥12.8 | 358-382 | 45-48 | 7.55 | 100 | 212 | |||
| 50M | 1.39-1.43 | 13.9-14.3 | ≥1114 | ≥14 | ≥1035 | ≥13.0 | 374-398 | 47-50 | 7.60 | 100 | 212 | |||
| 52M | 1.42-1.47 | 14.2-14.7 | ≥1114 | ≥14 | ≥1059 | ≥13.3 | 390-414 | 49-52 | 7.60 | 100 | 212 | |||
| 54M* | 1.45-1.50 | 14.5-14.0 | ≥1114 | ≥14 | ≥1075 | ≥13.5 | 406-430 | 51-54 | 7.60 | 100 | 212 | |||
| 35H | 1.18-1.24 | 11.8-12.4 | ≥1353 | ≥17 | ≥876 | ≥11.0 | 263-295 | 33-37 | 20-120 | -0.105 | -0.60 | 7.45 | 120 | 248 |
| 38H | 1.23-1.28 | 12.3-12.8 | ≥1353 | ≥17 | ≥915 | ≥11.5 | 287-310 | 36-39 | 7.45 | 120 | 248 | |||
| 40H | 1.26-1.31 | 12.6-13.1 | ≥1353 | ≥17 | ≥939 | ≥11.8 | 302-326 | 38-41 | 7.50 | 120 | 248 | |||
| 42H | 1.29-1.34 | 12.9-13.4 | ≥1353 | ≥17 | ≥963 | ≥12.1 | 318-350 | 40-44 | 7.50 | 120 | 248 | |||
| 45H | 1.33-1.38 | 13.3-13.8 | ≥1353 | ≥17 | ≥995 | ≥12.5 | 342-366 | 43-46 | 7.55 | 120 | 248 | |||
| 48H | 1.37-1.41 | 13.7-14.1 | ≥1274 | ≥16 | ≥1027 | ≥12.9 | 358-382 | 45-48 | 7.55 | 120 | 248 | |||
| 50H | 1.39-1.43 | 13.9-14.3 | ≥1274 | ≥16 | ≥1043 | ≥13.1 | 374-398 | 47-50 | 7.60 | 120 | 248 | |||
| 52H* | 1.42-1.47 | 14.2-14.7 | ≥1274 | ≥16 | ≥1067 | ≥13.4 | 390-414 | 49-52 | 7.60 | 120 | 248 | |||
| 35SH | 1.18-1.24 | 11.8-12.4 | ≥1592 | ≥20 | ≥884 | ≥11.1 | 263-295 | 33-37 | 20-150 | -0.105 | -0.55 | 7.50 | 150 | 302 |
| 38SH | 1.23-1.28 | 12.3-12.8 | ≥1592 | ≥20 | ≥923 | ≥11.6 | 287-310 | 36-39 | 7.50 | 150 | 302 | |||
| 40SH | 1.26-1.31 | 12.6-13.1 | ≥1592 | ≥20 | ≥947 | ≥11.9 | 302-326 | 38-41 | 7.55 | 150 | 302 | |||
| 42SH | 1.29-1.34 | 12.9-13.4 | ≥1592 | ≥20 | ≥971 | ≥12.0 | 318-350 | 40-44 | 7.55 | 150 | 302 | |||
| 45SH | 1.33-1.38 | 13.3-13.8 | ≥1592 | ≥20 | ≥1003 | ≥12.6 | 342-366 | 43-46 | 7.60 | 150 | 302 | |||
| 48SH | 1.37-1.41 | 13.7-14.1 | ≥1592 | ≥20 | ≥1035 | ≥13.0 | 358-382 | 45-48 | 7.60 | 150 | 302 | |||
| 50SH | 1.39-1.43 | 13.9-14.3 | ≥1592 | ≥20 | ≥1051 | ≥13.2 | 374-398 | 47-50 | 7.60 | 150 | 302 | |||
| 52SH* | 1.42-1.47 | 14.2-14.7 | ≥1592 | ≥20 | ≥1075 | ≥13.3 | 390-414 | 49-52 | 7.60 | 150 | 302 | |||
| 30UH | 1.08-1.15 | 10.8-11.5 | ≥1990 | ≥25 | ≥812 | ≥10.2 | 223-255 | 28-32 | 20-180 | -0.115 | -0.45 | 7.55 | 180 | 356 |
| 33UH | 1.14-1.19 | 11.4-11.9 | ≥1990 | ≥25 | ≥860 | ≥10.8 | 247-271 | 31-34 | 7.55 | 180 | 356 | |||
| 35UH | 1.18-1.24 | 11.8-12.4 | ≥1990 | ≥25 | ≥892 | ≥11.2 | 263-295 | 33-37 | 7.55 | 180 | 356 | |||
| 38UH | 1.23-1.28 | 12.3-12.8 | ≥1990 | ≥25 | ≥931 | ≥11.7 | 287-310 | 36-39 | 7.60 | 180 | 356 | |||
| 40UH | 1.26-1.31 | 12.6-13.1 | ≥1990 | ≥25 | ≥955 | ≥12.0 | 302-326 | 38-41 | 7.60 | 180 | 356 | |||
| 42UH | 1.29-1.34 | 12.9-13.4 | ≥1990 | ≥25 | ≥979 | ≥12.3 | 318-350 | 40-44 | 7.60 | 180 | 356 | |||
| 45UH | 1.33-1.38 | 13.3-13.8 | ≥1990 | ≥25 | ≥1011 | ≥12.7 | 342-366 | 43-46 | 7.60 | 180 | 356 | |||
| 48UH* | 1.36-1.40 | 13.6-14.0 | ≥1990 | ≥25 | ≥1035 | ≥13.0 | 358-382 | 45-48 | 7.60 | 180 | 356 | |||
| 50UH* | 1.38-1.42 | 13.8-14.2 | ≥1990 | ≥25 | ≥1051 | ≥13.2 | 374-398 | 47-50 | 7.60 | 180 | 356 | |||
| 30EH | 1.08-1.15 | 10.8-11.5 | ≥2388 | ≥30 | ≥820 | ≥10.3 | 223-255 | 28-32 | 20-200 | -0.115 | -0.45 | 7.55 | 200 | 392 |
| 33EH | 1.14-1.19 | 11.4-11.9 | ≥2388 | ≥30 | ≥868 | ≥10.9 | 247-271 | 31-34 | 7.55 | 200 | 392 | |||
| 35EH | 1.18-1.24 | 11.8-12.4 | ≥2388 | ≥30 | ≥899 | ≥11.3 | 263-295 | 33-37 | 7.6 | 200 | 392 | |||
| 38EH | 1.22-1.26 | 12.2-12.6 | ≥2388 | ≥30 | ≥931 | ≥11.7 | 287-310 | 36-39 | 7.6 | 200 | 392 | |||
| 40EH | 1.25-1.29 | 12.6-13.1 | ≥2388 | ≥30 | ≥955 | ≥12.0 | 302-326 | 38-41 | 7.65 | 200 | 392 | |||
| 42EH* | 1.28-1.32 | 12.8-13.2 | ≥2388 | ≥30 | ≥979 | ≥12.3 | 318-350 | 40-44 | 7.65 | 200 | 392 | |||
| 45EH* | 1.32-1.37 | 13.2-13.7 | ≥2388 | ≥30 | ≥1011 | ≥12.7 | 342-366 | 43-46 | 7.65 | 200 | 392 | |||
| 48EH* | 1.36-1.40 | 13.6-14.0 | ≥2388 | ≥30 | ≥1035 | ≥13.0 | 358-382 | 45-48 | 7.65 | 200 | 392 | |||
| 30TH | 1.08-1.15 | 10.8-11.5 | ≥2786 | ≥35 | ≥820 | ≥10.3 | 223-255 | 28-32 | 20-250 | -0.115 | -0.40 | 7.6 | 250 | 482 |
| 33TH | 1.14-1.19 | 11.4-11.9 | ≥2786 | ≥35 | ≥868 | ≥10.9 | 247-271 | 31-34 | 7.6 | 250 | 482 | |||
| 35EH | 1.18-1.24 | 11.8-12.4 | ≥2786 | ≥35 | ≥899 | ≥11.3 | 263-295 | 33-37 | 7.65 | 250 | 482 | |||
| 38EH | 1.22-1.26 | 12.2-12.6 | ≥2786 | ≥35 | ≥931 | ≥11.7 | 287-310 | 36-39 | 7.65 | 250 | 482 | |||
| 40EH* | 1.25-1.29 | 12.6-13.1 | ≥2786 | ≥35 | ≥955 | ≥12.0 | 302-326 | 38-41 | 7.65 | 250 | 482 | |||
| Note: Grades with *marked apply special processes. | ||||||||||||||
Maximum operating temperature
Although the Curie temperature of NdFeB materials is around 310 ºC for 0% cobalt and higher than 370 ºC for 5% cobalt, some irreversible output loss may occur even at moderate temperatures. The new magnets also have a moderately high reversible temperature coefficient of induction, with the total magnetic output decreasing with increasing temperature. The choice of neodymium magnets over SmCo is a function of the maximum temperature of the application, the desired magnetic output at typical operating temperatures, and the total system cost.
The new magnet also has some limitations due to its corrosive behavior. In wet environments, a protective coating or electroplating is strongly recommended. Coatings that have been successfully applied include: electronic coatings, powder coatings, nickel plating, zinc plating, parylene, and combinations of these coatings.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2014
Total Annual:
3000000-4000000
Employee Number:
5~20
Ecer Certification：
Active Member
The company was established in 2014 and its registered address is Qingdao, China The company's main products are: Rare earth metals, Rare earth magnetic powder, Rare earth NdFeB Compound, Rare earth Samarium-Iron-Nitrogen Compound, Various magnetic materials: Bonded NdFeB Magnets,Injec... The company was established in 2014 and its registered address is Qingdao, China The company's main products are: Rare earth metals, Rare earth magnetic powder, Rare earth NdFeB Compound, Rare earth Samarium-Iron-Nitrogen Compound, Various magnetic materials: Bonded NdFeB Magnets,Injec...
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