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strong rare earth Neodymium Block Magnets

Min. Order: 1000 Piece/Pieces
Payment Terms: L/C, T/T
Supply Ability: 1000000 piece one year
Place of Origin: Zhejiang

Company Profile

Location: Ningbo, Zhejiang, China (Mainland)
Business Type: Manufacturer, Trading Company

Product Detail

Means of Transport: Ocean, Air, Land
Application: Motor Magnet
Shape: Block
Type: Permanent
Composite: Rare Earth Magnet
size:: According to customer's requirement
Grade:: N35-52,M,H,SH,UH,EH
Coating: NiCuNi, Zn, Black Epoxy, and etc.
Material::: Neodymium Magnet
Production Capacity: 1000000 piece one year
Packing: According to the practical mode of transportation decided to packing
Delivery Date: According to the actual number of delivery date
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Product Description

 product name strong rare earth Neodymium Block Magnets
strong rare earth Neodymium Block Magnets

We are a professional manufacturer of rare earth Neodymium magnets with wide range of shapes & sizes, from grade N35-52,M,H,SH,UH,EH

Neodymium (NdFeB) magnets, the third generation of rare earth permanent Neodymium magnet, are composed of Neodymium, Iron, Boron and a few transition metals. They have high remanence, high coercive force, high energy product, and high performance /cost. Currently Neodymium (NdFeB) magnets are the strongest magnets available in the world.
Manufacturing Process of Rare Earth Neodymium Magnets
Neodymium, Iron, Boron and a few transition metals will be made into the NdFeB (Neodymium) powder, then fine NdFeB powder will be compacted in a die and sintered, fusing the powder into a solid material. There are 2 forms of pressing: die pressing and isostatic pressing. Sintered parts normally need some finish machining in order to meet final tolerances.
Machining & Tolerance of Rare Eart Neodymium Magnets
Generally, (Neodymium) NdFeB magnets must be machined using diamond-grinding techniques. Sometimes, machining operations may be performed on Neodymium (NdFeB) materials using carbide tools, but surface finishes thus obtained may be less than optimal. The Standard tolerances for NdFeB (Neodymium) magnets are +/- 0.1mm for ground dimensions, but sticter tolerances are possible if specially required.
Surface treatments of Rare Earth Neodymium Magnets
The corrosion resistance of NdFeB (Neodymium) magnets is considered poor. Surface coating or plating is therefore highly recommended for NdFeB (Neodymium) magnets. All kinds of surface coating are available, like Nickel, Zn, Ni-Cu-Ni, Gold, Silver, Sn, Chrome and etc.

Application of Rare Earth Neodymium Magnets
Widely used in automobiles, mobile phones, digital cameras, jewelry, clothing, all kinds of hardware accessories, electrical, laser heads, toys, gifts, speakers, packing, leather goods, medical equipment and adverying, Switchboard, voice coil motors (VCM's) in hard disk drives, high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors, loudspeakers etc.
Residual Induction
Coercive Force
Intrinsic CoerciveForce
Maximum Energy Product
Maximum WorkingTemperature
Br
Hcb
Hcj
(BH)max
Tw
mT
kA/m
kA/m
kJ/m3
[kGs]
[kOe]
[kOe]
[MGOe]
N35
1170-1220
≥868
≥955
263-287
80°
[11.7-12.2]
[≥10.9]
[≥12]
[33-36]
N38
1220-1250
≥899
≥955
287-310
80°
[12.2-12.5]
[≥11.3]
[≥12]
[36-39]
N40
1250-1280
≥907
≥955
302-326
80°
[12.5-12.8]
[≥11.4]
[≥12]
[38-41]
N42
1280-1320
≥915
≥955
318-342
80°
[12.8-13.2]
[≥11.5]
[≥12]
[40-43]
N45
1320-1380
≥923
≥955
342-366
80°
[13.2-13.8]
[≥11.6]
[≥12]
[43-46]
N48
1380-1420
≥923
≥955
366-390
80°
[13.8-14.2]
[≥11.6]
[≥12]
[46-49]
N50
1400-1450
≥796
≥876
382-406
80°
[14.0-14.5]
[≥10.0]
[≥11]
[48-51]
N52
1430-1480
≥796
≥876
398-422
80°
[14.3-14.8]
[≥10.0]
[≥11]
[50-53]
30M
1080-1130
≥805
≥1114
223-247
100°
[10.8-11.3]
[≥10.1]
[≥14]
[28-31]
33M
1130-1170
≥836
≥1114
247-263
100°
[11.3-11.7]
[≥10.5]
[≥14]
[31-33]
35M
1170-1220
≥868
≥1114
263-287
100°
[11.7-12.2]
[≥10.9]
[≥14]
[33-36]
38M
1220-1250
≥899
≥1114
287-310
100°
[12.2-12.5]
[≥11.3]
[≥14]
[36-39]
40M
1250-1280
≥923
≥1114
302-326
100°
[12.5-12.8]
[≥11.6]
[≥14]
[38-41]
42M
1280-1320
≥955
≥1114
318-342
100°
[12.8-13.2]
[≥12.0]
[≥14]
[40-43]
45M
1320-1380
≥995
≥1114
342-366
100°
[13.2-13.8]
[≥12.5]
[≥14]
[43-46]
48M
1370-1430
≥1027
≥1114
366-390
100°
[13.7-14.3]
[≥12.9]
[≥14]
[46-49]
50M
1400-1450
≥1033
≥1114
382-406
100°
[14.0-14.5]
[≥13.0]
[≥14]
[48-51]
35H
1170-1220
≥868
≥1353
263-287
120°
[11.7-12.2]
[≥10.9]
[≥17]
[33-36]
38H
1220-1250
≥899
≥1353
287-310
120°
[12.2-12.5]
[≥11.3]
[≥17]
[36-39]
40H
1250-1280
≥923
≥1353
302-326
120°
[12.5-12.8]
[≥11.6]
[≥17]
[38-41]
42H
1280-1320
≥955
≥1353
318-342
120°
[12.8-13.2]
[≥12.0]
[≥17]
[40-43]
45H
1320-1360
≥963
≥1353
342-366
120°
[13.2-13.6]
[≥12.1]
[≥17]
[43-46]
48H
1370-1430
≥995
≥1353
366-390
120°
[13.7-14.3]
[≥12.5]
[≥17]
[46-49]
35SH
1170-1220
≥876
≥1592
263-287
150°
[11.7-12.2]
[≥11.0]
[≥20]
[33-36]
38SH
1220-1250
≥907
≥1592
287-310
150°
[12.2-12.5]
[≥11.4]
[≥20]
[36-39]
40SH
1250-1280
≥939
≥1592
302-326
150°
[12.5-12.8]
[≥11.8]
[≥20]
[38-41]
42SH
1280-1320
≥987
≥1592
318-342
150°
[12.8-13.2]
[≥12.4]
[≥20]
[40-43]
45SH
1320-1380
≥1003
≥1592
342-366
150°
[13.2-13.8]
[≥12.6]
[≥20]
[43-46]
28UH
1040-1080
≥764
≥1990
207-231
180°
[10.4-10.8]
[≥9.6]
[≥25]
[26-29]
30UH
1080-1130
≥812
≥1990
223-247
180°
[10.8-11.3]
[≥10.2]
[≥25]
[28-31]
33UH
1130-1170
≥852
≥1990
247-271
180°
[11.3-11.7]
[≥10.7]
[≥25]
[31-34]
35UH
1170-1220
≥860
≥1990
263-287
180°
[11.7-12.2]
[≥10.8]
[≥25]
[33-36]
38UH
1220-1250
≥876
≥1990
287-310
180°
[12.2-12.5]
[≥11.0]
[≥25]
[36-39]
40UH
1250-1280
≥899
≥1990
302-326
180°
[12.5-12.8]
[≥11.3]
[≥25]
[38-41]
28EH
1040-1080
≥780
≥2388
207-231
200°
[10.4-10.8]
[≥9.8]
[≥30]
[26-29]
30EH
1080-1130
≥812
≥2388
223-247
200°
[10.8-11.3]
[≥10.2]
[≥30]
[28-31]
33EH
1130-1170
≥876
≥2388
247-271
200°
[11.3-11.7]
[≥10.5]
[≥30]
[31-34]
35EH
1170-1220
≥876
≥2388
263-287
200°
[11.7-12.2]
[≥11.0]
[≥30]
[33-36]
38EH
1220-1250
≥899
≥2388
287-310
200°
[12.2-12.5]
[≥11.3]
[≥30]
[36-39]
28AH
1040-1080
≥787
≥2624
207-231
220°
[10.4-10.8]
[≥9.9]
[≥33]
[26-29]
30AH
1080-1130
≥819
≥2624
223-247
220°
[10.8-11.3]
[≥10.3]
[≥33]
[28-31]
33AH
1130-1170
≥843
≥2624
247-271
220°
[11.3-11.7]
[≥10.6]
[≥33]
[31-34]

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