Bonded NdFeB Magnets

Bonded NdFeB Magnets

Material: Bonded NdFeB Magnet

Grade: BNP-3, BNP-6, BNP-8, BNP-8SR, BNP-9H, BNP-10, BNP-11, BNP-12, BNP-12L

Type: Rare Earth Magnets

Shapes & Sizes: Block, Disc, Ring etc.

Coating: Black Epoxy, Phosphating, Passivated etc.

Magnetized or Un-magnetized?

Magnetization Direction: Multi-poles through Diameter etc.

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Description

Bonded NdFeB magnets are isotropic magnets, customers can choose magnetization direction in the process of magnetizing, many customers requested bonded ring magnets with multi-poles.

Comparing with sintered NdFeB magnets, bonded magnets are manufactured by mould in one step, can be customized in many complicated shapes.

Application: The development of bonded NdFeB magnet is later than sintered NdFeB, application is not very wide, volume of use is small. It is mainly used for office, auto equipments, audio, instruments, meters, small motors, measurement, mobile, CD-ROM, DVD etc.

Magnetic Properties of Bonded NdFeB Magnet

Performance

BNP-6

BNP-8L

BNP-8

BNP-8SR

BNP-8H

BNP-9

BNP-10

BNP-11

BNP-11L

BNP-12L

B r T(Gs)

0.55-0.62

0.60-0.64

0.62-0.69

0.62-0.66

0.61-0.65

0.65-0.70

0.68-0.72

0.70-0.74

0.70-0.74

0.74-0.80

H CB kA/m(kOe)

285-37 (3.6-4.6)

360-400 (4.5-5.0)

385-445 (4.8-5.6)

410-465 (5.2-5.8)

410-455 (5.2-5.7)

400-440 (5.0-5.5)

420-470 (5.3-5.9)

445-480 (5.6-6.0)

400-440 (5.0-5.5)

420-455
(5.3-5.7)

H CJ kA/m(kOesz)

600-755 (7.5-9.5)

715-800 (9-10)

640-800 (8-10)

880-1120 (11-14)

1190-1440 (15-18)

640-800 (8-10)

640-800 (8-10)

680-800 (8.5-10)

520-640 (6.5-8)

520-600
(6.5-7.5)

(BH) max kJ/m 3 (MGOe)

44-56
( 5.5-7 )

56-64
( 7.0-8.0)

64-72
( 8.0-9.0)

64-72
( 8.0-9.0)

64-72
( 8.0-9.0)

70-76
(8.8-9.5)

76-84
(9.5-10.5)

80-88
(10.0-11.0)

78-84
(9.8-10.5)

84-92
( 10.5-11.5)

D g/cm 3

5.5-6.1

5.6-6.1

5.8-6.1

5.8-6.1

5.9-6.2

5.8-6.1

5.8-6.1

5.8-6.1

5.8-6.1

5.8-6.1

μ r

1.15

1.15

1.15

1.13

1.15

1.22

1.22

1.22

1.26

1.26

α(B r) %/ ℃

-0.13

-0.13

-0.13

-0.13

-0.07

-0.12

-0.11

-0.11

-0.11

-0.08

T w ℃

100

110

120

150

125

120

120

120

110

110

1.The characteristics in this table are measured on CREM's standard test samples and not guaranteed values.