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Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

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Rectangular Block Magnets 

Price: 0.5~5.0 USD 
Payment Terms: T/T,L/C 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: RM-B15
Production Capacity: 100 ton/month
Delivery Date: 20 days
Shape: Block
Composite: NdFeB Magnet
material: Neodymium Iron Boron
Means of Transport: Ocean,Land
Packing: standard carton by sea or b...
Application: Industrial Magnet
Type: Permanent
Brand Name: Rainbow

This NdFeB rectangular block magnet is sintered NdFeB magnet,the magnetized through the thickness.



Neodymium Iron Boron 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.

Neodymium Iron Boron Rectangular Block Magnet is sintered NdFeB magnet,the magnetized through the thickness.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.
The shortcoming is easy to rust, oxidation, so the 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.

The SH grade and its details properties, pls see follow table.
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
N30SH
1.08-1.12
10.8-11.2
804-844
10.1-10.6
≥1592
≥20
223-239
28-30
≤150
N33SH
1.14-1.17
11.4-11.7
820-876
10.3-11.0
≥1592
≥20
247-263
31-33
≤150
N35SH
1.17-1.21
11.7-12.1
860-907
10.8-11.4
≥1592
≥20
263-279
33-35
≤150
N38SH
1.22-1.26
12.2-12.6
907-947
11.4-11.9
≥1592
≥20
287-303
36-38
≤150
N40SH
1.26-1.29
12.6-12.9
907-947
11.4-11.9
≥1592
≥20
303-318
38-40
≤150
N42SH
1.30-1.33
13.0-13.3
907-947
11.4-11.9
≥1512
≥19
318-334
40-42
≤140
Note: The above mentioned data of magnetic parameters and physical are given at 20℃±2℃



The main physical properties of Neodymium Iron Boron Rectangular Block Magnet
magnetic properties
Parameters
Density /g.cm3
Vickers Hardness HV
Resistivity /υΩ.cm
Compressive strength/N.mm-2
Coefficient of Thermal Expansion (C⊥)/K-1
Coefficient of Thermal Expansion (C∥) /K-1
7.45
570
150
780
-4.8X10-6
-3.4X10-6

APPLICATION:
instrumentation,
electro-acoustic motor,
magnetic magnetization device
micro motors,
electronic industry,
automobile industry,
petrochemicals,
high performance motors,
brushless DC motors,
generators,
magnetic separation,
magnetic resonance imaging,
hearing aids,
voice coil motors,
magnetic machinery,
magnetic spring,
magnetic vibration device
magnetic connection,
magnetic machine
magnetic equipment
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 Ms. Annie

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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