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Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

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Permanent and powerful arc rare earth NdFeB disc magnets. 

Price: 0.01~2.0 USD 
Payment Terms: T/T,L/C,WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: RM-D19
Production Capacity: 100TON/MONTH
Delivery Date: 7-30days
Type: Permanent
Brand Name: rainbow magnet
Means of Transport: Ocean,Air;experess
Packing: standard air cartons or sea...
Application: Speaker Magnet
Composite: Neodymium Magnet

1.Size, grade, coating and tolerance can be made as required.
2.Various shapes for NdFeB Magnets is available
3.High cost-effective,

sintered NdFeB disc Magnet :


NdFeB (Neodymium Iron Boron magnets Neo magn
et), 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.

There are two kinds of magnets: Sintered NdFeB magnet and bonded NdFeB magnet.

Bonded NdFeB also have two kinds magnet: Bonded compression NdFeB and Bonded Injection NdFeB

Nd-Fe-B permanent magnet is manufactured in a wide range of shapes, sizes and grades according customer's demand.
sintered NdFeB disc Magnethas 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 disc 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.

APPLICATION:
instrumentation,
electro-acoustic motor,
magnetic magnetization device
micro motors,
electronic industry,
automobile industry,
petrochemicals,
nuclear magnetic resonance device,
sound device magnetic suspension system,
magnetic transmission machine
magneto therapy equipment
high performance motors,
brushless DC motors,
generators,
magnetic separation,

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
N28UH
1.04-1.08
10.4-10.8
780-812
9.8-10.2
≥1990
≥25
207-223
26-28
≤180
N30UH
1.08-1.12
10.8-11.2
804-844
10.1-10.6
≥1990
≥25
223-239
28-30
≤180
N33UH
1.14-1.17
11.4-11.7
820-876
10.3-11.0
≥1990
≥25
247-263
31-33
≤180
N35UH
1.17-1.21
11.7-12.1
860-907
10.8-11.4
≥1990
≥25
263-279
33-35
≤180
N38UH
1.22-1.26
12.2-12.6
860-907
10.8-11.4
≥1990
≥25
287-303
36-38
≤180
N40UH
1.26-1.29
12.6-12.9
860-907
10.8-11.4
≥1990
≥25
289-303
38-40
≤180


demagnazation curve for UH grade in difference temperature:



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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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