Sintered NdFeB Magnets

Sintered NdFeB Magnet, the most powerful rare earth magnets available today, possess high energy and wonderful coercive force. As the third generation of rare earth permanent magnet, NdFeB magnets are less brittle than SmCo magnet, and are used in a wide variety of applications.

It is easily formed into various sizes, including tile magnet, magnetic cylinder, magnet block, sphere magnets, horseshoe magnets, can be single magnetization, two poles and multi-poles magnetization, are widely used in mini-motors, wind generators, meters, sensors, sound device, magnetic suspension system, magnetic transmission machine and iatrical apparatus and other applications. It is prone to corrosion in humid environments, usually need surface treatment according to customer's requirements to protect magnet. We can offer the coating included: Zinc, Nickel, Silver, Gold-plating, Passivation, Phosphor,rubber and Spray Epoxy Resin.

Process Flow: Raw Material-----Mixing-----Melting-----Power-----Pressing-----Sintering----Magnetic Testing-----Cutting & Grinding-----Coating-----Inspection-----Packing and shipping.

NdFeB Permanent Magnet, NdFeB Permanent Magnets, Magnetic Material for you now!

Grade

Brm T(KGs)

Hcb KA/m(kOe)

Hcj KA/m(kOe)

(BH)max KJ/m3(MGOe)

(Tw)

N27

1030-1080(10.3-10.8)

≥796(≥10.0)

≥955(≥12)

199-231(25-29)

80℃

N30

1080-1130(10.8-11.3)

≥796(≥10.0)

≥955(≥12)

223-247(28-31)

80℃

N33

1130-1170(11.3-11.7)

≥836(≥10.5)

≥955(≥12)

247-271(31-34)

80℃

N35

1170-1220(11.7-12.2)

≥868(≥10.9)

≥955(≥12)

263-287(33-36)

80℃

N38

1220-1250(12.2-12.5)

≥899(≥11.3)

≥955(≥12)

287-310(36-39)

80℃

N40

1250-1280(12.5-12.8)

≥907(≥11.4)

≥955(≥12)

302-326(38-41)

80℃

N42

1280-1320(12.8-13.2)

≥915(≥11.5)

≥955(≥12)

318-342(40-43)

80℃

N45

1320-1380(13.2-13.8)

≥923(≥11.6)

≥955(≥12)

342-366(43-46)

80℃

N48

1380-1420(13.8-14.2)

≥923(≥11.6)

≥876(≥12)

366-390(46-49)

80℃

N50

1400-1450(14.0-14.5)

≥796(≥10.0)

≥876(≥12)

382-406(48-51)

60℃

N52

1430-1480(14.3-14.8)

≥796(≥10.0)

≥876(≥12)

398-422(50-53)

60℃

N30M

1080-1130(10.8-11.3)

≥796(≥10.0)

≥1114(≥14)

223-247(28-31)

100℃

N33M

1130-1170(11.3-11.7)

≥836(≥10.5)

≥1114(≥14)

247-263(31-33)

100℃

N35M

1170-1220(11.7-12.2)

≥868(≥10.9)

≥1114(≥14)

263-287(33-36)

100℃

N38M

1220-1250(12.2-12.5)

≥899(≥11.3)

≥1114(≥14)

287-310(36-39)

100℃

N40M

1250-1280(12.5-12.8)

≥923(≥11.6)

≥1114(≥14)

302-326(38-41)

100℃

N42M

1280-1320(12.8-13.2)

≥955(≥12.0)

≥1114(≥14)

318-342(40-43)

100℃

N45M

1320-1380(13.2-13.8)

≥995(≥12.5)

≥1114(≥14)

342-366(43-46)

100℃

N48M

1360-1430(13.6-14.3)

≥1027(≥12.9)

≥1114(≥14)

366-390(46-49)

100℃

N50M

1400-1450(14.0-14.5)

≥1033(≥1.0)

≥1114(≥14)

382-406(48-51)

100℃

N30H

1080-1130(10.8-11.3)

≥796(≥10.0)

≥1353(≥17)

223-247(28-31)

120℃

N33H

1130-1170(11.3-11.7)

≥836(≥10.5)

≥1353(≥17)

247-271(31-34)

120℃

N35H

1170-1220(11.7-12.2)

≥868(≥10.9)

≥1353(≥17)

263-287(33-36)

120℃

N38H

1220-1250(12.2-12.5)

≥899(≥11.3)

≥1353(≥17)

287-310(36-39)

120℃

N40H

1250-1280(12.5-12.8)

≥923(≥11.6)

≥1353(≥17)

302-326(38-41)

120℃

N42H

1280-1320(12.8-13.2)

≥955(≥12.0)

≥1353(≥17)

318-342(40-43)

120℃

N45H

1300-1360(13-13.6)

≥963(≥12.1)

≥1353(≥17)

326-358(43-46)

120℃

N48H

1370-1430(13.7-14.3)

≥995(≥12.5)

≥1353(≥17)

366-390(46-49)

120℃

N30SH

1080-1130(10.8-11.3)

≥804(≥10.1)

≥1592(≥20)

223-247(28-31)

150℃

N33SH

1130-1170(11.3-11.7)

≥844(≥10.6)

≥1592(≥20)

247-271(31-34)

150℃

N35SH

1170-1220(11.7-12.2)

≥876(≥11.0)

≥1592(≥20)

263-287(33-36)

150℃

N38SH

1220-1250(12.2-12.5)

≥907(≥11.4)

≥1592(≥20)

287-310(36-39)

150℃

N40SH

1240-1280(12.5-12.8)

≥939(≥11.8)

≥1592(≥20)

302-326(38-41)

150℃

N42SH

1280-1320(12.8-13.2)

≥987(≥12.4)

≥1592(≥20)

318-342(40-43)

150℃

N45SH

1320-1380(13.2-13.8)

≥1003(≥12.6)

≥1592(≥20)

342-366(43-46)

150℃

N28UH

1020-1080(10.2-10.8)

≥764(≥9.6)

≥1990(≥25)

207-231(26-29)

180℃

N30UH

1080-1130(10.8-11.3)

≥812(≥10.2)

≥1990(≥25)

223-247(28-31)

180℃

N33UH

1130-1170(11.3-11.7)

≥852(≥10.7)

≥1990(≥25)

247-271(31-34)

180℃

N35UH

1180-1170(11.8-12.2)

≥860(≥10.8)

≥1990(≥25)

263-287(33-36)

180℃

N38UH

1220-1250(12.2-12.5)

≥876(≥11.0)

≥1990(≥25)

287-310(36-39)

180℃

N40UH

1240-1280(12.5-12.8)

≥899(≥11.3)

≥1990(≥25)

302-326(38-41)

180℃

N28EH

1040-1090(10.4-10.9)

≥780(≥9.8)

≥2388(≥30)

207-231(26-29)

200℃

N30EH

1080-1130(10.8-11.3)

≥812(≥10.2)

≥2388(≥30)

223-247(28-31)

200℃

N33EH

1130-1170(11.3-11.7)

≥836(≥10.5)

≥2388(≥30)

247-271(31-34)

200℃

N35EH

1170-1220(11.7-12.2)

≥876(≥11.0)

≥2388(≥30)

263-287(33-36)

200℃

N38EH

1220-1250(12.2-12.5)

≥899(≥11.3)

≥2388(≥30)

287-310(36-39)

200℃

Thermal Conductivity

7.7 kcal/m-h-°C

Young’s Modulus

1.7 x 104 kg/mm2

Bending Strength

24 kg/mm2

Compressive Strength

80 kg/mm2

Electrical Resistivity

160 µ-ohm-cm/cm2

Density

7.4-7.55 g/cm3

Vickers Hardness

500 - 600

Available Coatings:

Surface

Coating

Thickness (Microns)

Color

Resistance

Passivation

1

Silver Grey

Temporary Protection

Nickel

Ni+Ni

10-20

Bright Silver

Excellent against Humidity

Ni+Cu+Ni

Zinc

Zn

8-20

Bright Blue

Good Against Salt Spray

C-Zn

Shinny Color

Excellent Against Salt Spray

Tin

Ni+Cu+Sn

15-20

Silver

Superior Against Humidity

Gold

Ni+Cu+Au

10-20

Gold

Superior Against Humidity

Copper

Ni+Cu

10-20

Gold

Temporary Protection

Epoxy

Epoxy

15-25

Black, Red, Grey

Excellent Against Humidity
& Salt Spray

Ni+Cu+Epoxy

Zn+Epoxy

Chemical

Ni

10-20

Silver Grey

Excellent Against Humidity

Parylene

Parylene

5-20

Grey

Excellent Against Humidity, Salt Spray. Superior Against Solvents, Gases, Fungi and Bacteria.
FDA Approved.