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Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet

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Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet

Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet
Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet

Large Image :  Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet

Product Details:
Place of Origin: Shandong, China
Brand Name: MGT
Certification: ISO9001:2015
Model Number: MGT-Sintered NdFeB Magnet
Payment & Shipping Terms:
Minimum Order Quantity: 10PCS
Price: USD 0.01-20 /PC
Packaging Details: Iron Sheet Sheilding Packing, Wooden Carton, Customized Packing
Delivery Time: 15-25 days
Payment Terms: T/T
Supply Ability: 10 Million per day

Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet

Description
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
High Light:

Permanent N38 NdFeB Magnet

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Silver Permanent NdFeB Magnet

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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.

 

Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet 0

 

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

Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet 1

 

Magnetic Parameters

 

Silver Permanent N38 NdFeB Magnet Sintered Generator Neodymium Magnet 2 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.

 

Contact Details
Qingdao Magnet Magnetic Material Co., Ltd.

Contact Person: Jack Cui

Tel: 18653221706

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