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Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

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Sintered NdFeB ring magnets.Super strong permanent magnet 

Price: 0.1~10.0 USD 
Payment Terms: T/T,L/C,WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: RM-R11
Production Capacity: 100ton/month
Delivery Date: 4 weeks
Type: Permanent
Brand Name: rainbow magnet
Grade: N/M/H/SH/UH/EH
Means of Transport: Ocean,Land,Air
Packing: standard carton by sea or b...
Application: Speaker Magnet
Composite: Neodymium Magnet
Shape: ring

1. powerful magnetic force
2. high corrosion resistance
3. excellent performance
4.TS16949

 NdFeB magnet is made from an alloy of neodymium, iron, andboron to form theNd2Fe14B tetragonal crystallinestructure. This materialis currently the strongest type of permanent magnet inthe world.

Nd-Fe-B permanent magnet is manufactured in awiderange of shapes, sizes and grades according customer's demand.
NdFeB has a very high energy product and coercivity,canpick up 660 times of own weight of heavy objects.
The advantage is high cost-effective, with good mechanical properties,easycutting; according customer's demand to manufacture in a wide range ofshapes,sizes and grades.
Also have high Br,high Hcj,high (BH)max,and high stability becometheimportant material of the world.

The shortcoming is the low of the Curie temperature and thetemperaturecharacteristics, easy to rust, oxidation, Sintered NdFeB's surface isusuallyrequired for plating such as zinc, nickel, silver, gold, etc., can alsobe donephosphorus treatment or spray epoxy resin to slow down the oxidationrate.
See the follows Grade N Sintered NdFeB magneticenergyparameters
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

The main physical properties of NdFeB ring 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

picture show NdFeB magnetring with Zn coating:



NdFeB magnet ring has been presented above,want more similar products, please click Permanent neodymium Iron Boronring magnets.NdFeB ring magnet. permanent rare earth material magnet. sintered NdFeB ring magnet.

Our NdFeB magnet ring is good inquality and competitive in price. We manufacture magnetand supply OEM, ODM service according to your requirement.

If you wantmore detailed information of this product or related problems, pleasecontactwith us, we will reply as soon as possible
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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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