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Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

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Neodymium rectangular Iron Boron magnets 

Price: 0.1~1.0 USD 
Payment Terms: T/T,L/C 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: RM-B11
Production Capacity: 100ton/month
Delivery Date: 7-20 days accoddng the quan...
Shape: Block
Composite: NdFeB Magnet
material: Neodymium Iron Boron
Means of Transport: Ocean,Air
Packing: standard air cartons or sea...
Application: Industrial Magnet
Type: Permanent
Brand Name: Rainbow

This Sintered NdFeB magnet is coated with NiCuNi,the magnetized through the thickness.


A neodymium magnet (also known as 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.

Neo rectangular block Magnet
This Sintered NdFeB magnet is coated with NiCuNi,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 magnetic field stability is important, the higher the coercivity of the permanent magnet alloy in other conditions as well as by the smaller the losses caused by external magnetic interference
The grade and its details properties, pls see follow table.
Sintered NdFeB magnetic energy parameters
Note: The above mentioned data of magnetic parameters and physical are given at 20℃±2℃
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
N35M
1.17-1.21
11.7-12.1
892-915
11.2-11.5
≥1114
≥14
263-279
33-35
≤100
N38M
1.22-1.26
12.2-12.6
907-931
11.4-11.7
≥1114
≥14
287-303
36-38
≤100
N40M
1.26-1.29
12.6-12.9
907-947
11.4-11.9
≥1114
≥14
303-318
38-40
≤100
N42M
1.30-1.33
13.0-13.3
907-947
11.4-11.9
≥1114
≥14
318-334
40-42
≤100
N45M
1.33-1.37
13.3-13.7
907-955
11.4-12.0
≥1114
≥14
334-358
42-45
≤100
N48M
1.36-1.42
13.6-14.2
907-955
11.4-12.0
≥1114
≥14
358-382
45-48
≤100


The main physical properties of sintered NdFeB
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

²
APPLICATION:
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,
²electromagnetic pumps,
²magnetic separators
²MRI
²magnetic machine
²magnetic equipment
²magnetic water
²magnetic seal
²oil magnetization of paraffin
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Tel: 86-574-87840198
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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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