Bonded Neodymium magnets, Compression bonded neodymium magnets
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Products Permanent Magnet >> Bonded Neodymium magnets

Bonded Neodymium magnets

Bonded Neodymium magnets are manufactured through the compression process. This process involves mixing neodymium powder with epoxy as a binder and pressing it into a die cavity with no magnetic field, thus making these magnets Isotropic. Pressed parts are then placed into the oven for curing. Compression bonded neodymium magnets are an excellent choice over other magnet types (sintered neodymium, Bonded Neodymium magnetssintered samarium cobalt, and hard ferrites) that have limits to some shapes . With their high energy product reaching up to 12 MGOe it makes them ideal for many applications requiring high magnetic strength and tight tolerances. Since no magnetic field is applied during the compression the finished product can be magnetized in any direction. Having epoxy as a binder in the manufacturing process for compression bonded magnets makes the magnets resistant to most industrial automotive fluids. With relative low tooling cost and quick turnaround compression bonded neodymium magnets are the choice for a wide variety of applications. The final product can be epoxy coated for durability and more resistant to corrosion.

Bonded Neodymium magnets:

Grade

Br T(Gs)

Hcb
kA/m(kOe)

Hcj
kA/m(kOe)

(BH)max kJ/m3 (MGOe)

Dg/cm 3

μr

α( B r ) %/ ℃

Tw ℃

BNP-6

0.55-0.62

285-370 (3.6-4.6)

600-755 (7.5-9.5)

44-56 ( 5.5-7)

5.5-6.1

1.15

-0.13

100

BNP-8L

0.60-0.64

360-400 (4.5-5.0)

715-800 (9-10)

56-64 (7.0-8.0)

5.6-6.1

1.15

-0.13

110

BNP-8

0.62-0.69

385-445 (4.8-5.6)

640-800 (8-10)

64-72 (8.0-9.0)

5.8-6.1

1.15

-0.13

120

BNP-8SR

0.62-0.66

410-465 (5.2-5.8)

880-1120 (11-14)

64-72 (8.0-9.0

5.8-6.1

1.13

-0.13

150

BNP-8H

0.61-0.65

410-455 (5.2-5.7)

1190-1440 (15-18)

64-72 (8.0-9.0)

5.9-6.2

1.15

-0.07

125

BNP-9

0.65-0.70

400-440 (5.0-5.5)

640-800 (8-10)

70-76 (8.8-9.5)

5.8-6.1

1.22

-0.12

120

BNP-10

0.68-0.72

420-470 (5.3-5.9)

640-800 (8-10)

76-84 (9.5-10.5)

5.8-6.1

1.22

-0.11

120

BNP-11

0.70-0.74

445-480 (5.6-6.0)

680-800 (8.5-10)

80-88 (10.0-11.0)

5.8-6.1

1.22

-0.11

120

BNP-12L

0.74-0.80

420-455 (5.3-5.7)

520-600 (6.5-7.5)

84-92 (10.5-11.5)

5.8-6.1

1.26

-0.08

110



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