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NINGBO LEC MAGNETIC TECHNOLOGY CO.,LTD.
NINGBO LEC MAGNETIC TECHNOLOGY CO.,LTD.

China Compression bonded neodymium magnets manufacturer

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Gold Index: 28153

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Compression bonded neodymium magnets 

Price: 0.2 USD 
Payment Terms: T/T,L/C,D/A,WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: BNB-0905
Production Capacity: 10,000 pc per day
Delivery Date: 10-18 days
Application: Motor Magnet
Composite: Neodymium Magnet
Size: Custom
BHmax: 24 - 92 kJ/m 3
Hcj: 477 - 637 kA/m
Means of Transport: Ocean,Air
Packing: cartons / pallets
Shape: Ring
Type: Permanent
Brand Name: LEC
Br: 450 - 770 mT
Hcb: 199 - 430 kA/m
Certificate: ISO9001:2008

Compression bonded neodymium magnets,isotropic bonded neodymium magnets for Automobile Electric Motor Printers and Sensors,BNP-4 Polymer Bonded Magnet

Compression bonded magnets are available using many isotropic neodymium iron boron material grades as well as crushed & powdered samarium cobalt materials. Combinations of different material grades may also be used to create specific magnetic characteristics. Compression bonded magnets offers higher magnetic strength than injection molded magnets due to their higher magnetic particle density, but are limited to simpler geometries. The epoxy binder used is resistant to normal industrial solvent and automotive fluids. To reduce corrosion of the rare earth magnetic materials, they are further coated with epoxy after shaping. The normal application temperatures range from below -40°C to above 165°C.

Compression bonding is most appropriate for relatively simple geometries due to limitations of the compaction process. The tooling costs for compression bonding is comparatively low, making it a better choice than injection molding where volumes are small. However, with modest automation, compression bonding can also be adopted for high volume manufacturing, with volumes upto millions of pieces per year.

Production Flow Chart for Compression Bonded NdFeB
Raw material (Mainly NdFeB powder and binder) preparation—Blending NdFeB powder and binder—Compaction molding—Machining—Surfacetreatment—Magnetizing—Final inspection—Packing—Warehousing

Production Flow Chart for Injection Bonded NdFeB
Raw material (Mainly NdFeB powder and binder) preparation—Blending NdFeB powder and binder—Injection molding—Machining—Surface treatment—Magnetizing—Final inspection—Packing—Warehousing

The performance of the compression bonded neodymium magnets.



BNP-3

BNP-6

BNP-8

BNP-8SR

BNP-9H

BNP-10

BNP-11

BNP-12L

Br (mT)

450-510

590-650

620-670

620-66

650-700

680-720

700-740

730-770

Br (Gs)

4500-5100

5900-6500

6200-6700

6200-6600

6500-4000

6800-7200

7000-7400

7300-7700

Hcb(kA/m)

199-263

302-374

390-454

405-470

421-484

413-477

430-493

366-430

Hcb(kOe)

2.5-3.3

3.8-4.7

4.9-5.7

5.1-5.9

5.3-6.1

5.2-6.0

5.4-6.2

4.6-5.4

Hcj (kA/m)

477-597

597-796

636-796

955-1114

915-1034

636-796

636-796

517-637

Hcj(kOe)

6.0-7.5

7.5-10.0

8.0-10.0

12.0-14.0

11.5-13.0

8.0-10.0

8.0-10.0

6.5-8.0

(BH)max (kJ/m 3)

24-32

44-53.6

60-68

65.6-72

72-80

76-84

80-88

84-92

(BH)max (MGOe)

3.0-4.0

5.5-7.0

8.0-9.5

8.2-9.0

9.0-10.0

9.5-10.5

10.0-11.0

10.5-11.5

Tw/ ℃

120

120

120

160

160

120

120

110



The factory has over 15 years experience on manufacturing and technology on the plastic bonded magnets. With its own molding workshop, the factory can accomplish entire production process in-house from molding design, manufacturing and maintenance. The plant has obtained automatic production with rigorous Japanese-type management and precise equipments imported.

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 Mr. Tong

Tel: 86-574-27863207
Fax: 86-574-27863208
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Company Info

NINGBO LEC MAGNETIC TECHNOLOGY CO.,LTD. [China (Mainland)]


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

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