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Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

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Neodymium Iron Boron block magnets 

Price: 0.01~10.0 EUR 
Payment Terms: T/T,L/C,WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: standard carton by sea or b...
Application: Industrial Magnet
Type: Permanent
Brand Name: Rainbow
Production Capacity: 100 ton/month
Delivery Date: 4 weeks
Shape: Block
Composite: NdFeB Magnet
material: Neodymium Iron Boron

Sintered Neo magnets have high Br,high Hcj,high (BH)max, and high stability, become the important material of the world.



NdFeB Block Magnet N52
NdFeB, (Neodymium Iron Boron magnets Neo magnet), is a type of rare-earth permanent magnet. It is made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure. This material is currently the strongest type of permanent magnet in the world.
Nd-Fe-B permanent magnet is manufactured in a wide range of shapes, sizes and grades according customer's demand.
NdFeB has a very high energy product and coercivity, can pick up 660 times of own weight of heavy objects.
The advantage is high cost-effective, with good mechanical properties, easy cutting; according customer's demand to manufacture in a wide range of shapes, sizes and grades.
Also have high Br,high Hcj,high (BH)max,and high stability become the important material of the world.
The shortcoming is the low of the Curie temperature and the temperature characteristics, easy to rust, oxidation, Sintered NdFeB's surface is usually required for plating such as zinc, nickel, silver, gold, etc., can also be done phosphorus treatment or spray epoxy resin to slow down the oxidation rate.


Pls see the compare of the coating's results:
Commonly type of coating
Coating thickness(um)
Neutral
salt spray test
dark Ni
Cu
Shine Ni
Total
Single-layer Ni
25
25
24h
normal
Double-layer Ni
12
10
25
72h
better
Dark Ni-Cu–shine Ni
6.25
8.75
10
25
120h
excellent

See the follows Grade N Sintered NdFeB magnetic energy parameters
Grade
Residual Induction
Coercive Force
Intrinsic Coercive Force
Maximum Energy Product
Maximum Operating
Temperature
Br
Hcb
Hcj
(BH)max
Tw
T
KGS
KA/m
KOe
KA/m
KOe
KJ/m3
MGOe
N35
1.17-1.21
11.7-12.1
876-899
11.0-11.3
≥955
≥12
263-279
33-25
≤80
N38
1.22-1.26
12.2-12.6
876-923
11.0-11.6
≥955
≥12
287-303
36-38
≤80
N40
1.26-1.29
12.6-12.9
876-923
11.0-11.6
≥955
≥12
303-318
38-40
≤80
N42
1.30-1.33
13.0-13.3
876-926
11.0-11.6
≥955
≥12
318-334
40-42
≤80
N45
1.33-1.37
13.3-13.7
876-926
11.0-11.6
≥955
≥12
342-358
43-45
≤80
N48
1.36-1.42
13.6-14.2
876-926
11.0-11.6
≥955
≥12
358-382
45-48
≤80
N50
1.41-1.45
14.1-14.5
828-907
10.4-11.4
≥876
≥11
382-398
48-50
≤70
N52
1.44-1.48
14.4-14.8
828-907
10.4-11.4
≥876
≥11
394-414
49.5-52
≤70

Nd-Fe-B permanent magnet with its excellent performance, abundant raw material and reasonable price is to be rapid development and wide application.

Also becoming increasingly popular across a wide range of novelty products for markets.
²APPLICATION:
² instrumentation,
² electro-acoustic motor,
² magnetic magnetization device
²micro motors,
²electronic industry,
²automobile industry,
²petrochemicals,
²nuclear magnetic resonance device,
²sound device magnetic suspension system,
²magnetic transmission machine
²magneto therapy equipment
²high performance motors,
²brushless DC motors,
²generators,
²magnetic separation,
²magnetic resonance imaging,
²sensors
²loudspeakers
²headphones,
²hearing aids,
²voice coil motors,
²magnetic vibrators,
²vibrating motors,
²permanent magnet motors,
²magnetic thrust axis,
²magnetic machinery,
²magnetic spring,
²magnetic vibration device
²magnetic connection,
²magnetic drive,
²Permanent magnet crane
²electromagnetic pumps,
²magnetic separators
²MRI
²magnetic machine
²magnetic equipment
²magnetic water
²magnetic seal
.oil magnetization of paraffin
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Tel: 86-574-87840198
Fax: 86-574-87393806
Mobile: 86- 189 5744 9606
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Company Info

Rainbow Magnet Ltd. [China (Mainland)]


Business Type:Manufacturer
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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