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Permanent NdFeB Disc Magnet, Nd Disc magnet, Neo Disc magnet, Rare earth Disc magnet
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Product name

Permanent NdFeB Disc Magnet, Nd Disc magnet, Neo Disc magnet, Rare earth Disc magnet

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Product description

Product Information:
 

 


Product name

Permanent NdFeB Disc Magnet, Nd Disc magnet, Neo Disc magnet, Rare earth Disc magnet

Material

Neodymium iron boron, Neo Magnet, Nd Magnet, Rare earth Magnet

Grade & working Temperature

Grade

Max Operating Temperatures

N35-N54

80°C     (176°F)

35M-52M

100°C   (212°F)

35H-50H

120°C   (248°F)

33SH-48SH

150°C   (302°F)

28UH-45UH

180°C   (356°F)

28EH-42EH

200°C   (392°F)

28AH-40AH

230°C   (446°F)

Shape

Disc, Block or Rectangular or Cuboid, Ring, Cylinder, Arc and Irregular shape are also available

Coating

Ni, Ni-Cu-Ni, Electroless Nickel, Zinc, Colored Zinc, Epoxy, Passivation, Phosphated, Parylene, Au, Ag, Sn etc.

Magnetized direction

Axially or Diametrical Magnetized, but Thickness, Multipoles and Radial magnetization are also available, Customized magnetization is welcome. 

Application

Servo motor,Brushless motor, Linear Motor, Automotive Motor, HEV& EV motor, Robot Driving Motor, Inverter Compressor Motor , Rail Transit Traction Motor, Consumer Electronics, Wind turbine, Energy-saving Elevator, Loudspeaker, Magnetic switch, VCM, MRI, Magnetic separator, sensor etc.

Certificate

 ISO9001, RoHS, REACH

Packing

Standard sea or air packing, such as carton, wooden box, pallet etc.

Lead time

7 days for samples, 15-20 days for mass production.

Transportation

All shipping methods are available: courier (TNT, DHL, FedEx, UPS), air or sea.

 Magnetic properties of Sintered NdFeB magnets:

Grade

Remanence

Coercive Force

Intrinsic Coercive Force

Max. energy product

Max.

Operating

Temperature

Br

Hcb

Hcj

(BH )

Tw

max  

mT

kA/m

kA/m

kJ/m3

(kGs)

(kOe)

(kOe)

(MGOe)

N35

1170-1220

>= 868

>=955

263-287

80°C

(11.7-12.2)

( >= 10.9)

( >= 12)

(33-36)

·N38

1220-1250

>=899

>=955

287-310

80°C

(12.2-12.5)

( >= 11.3)

( >= 12)

(36-39)

N40

1250-1280

>= 907

>=955

302-326

80°C

(12.5-12.8)

( >= 11.4)

( >= 12)

(38-41)

N42

1280-1320

>= 915

>=955

318-342

80°C

(12.8-13.2)

( >= 11.5)

( >= 12)

(40-43)

N45

1320-1380

>= 923

>=955

342-366

80°C

(13.2-13.8)

( >= 11.6)

( >= 12)

(43-46)

N48

1380-1420

>= 923

>=955

366-390

80°C

(13.8-14.2)

( >=11.6)

( >= 12)

(46-49)

N50

1400-1450

>= 796

>=955

382-406

80°C

(14.0-14.5)

( >= 10.0)

( >= 12)

(48-51)

N52

1430-1480

>= 796

>=876

398-422

80°C

(14.3-14.8)

( >= 10.0)

( >= 11)

(50-53)

N54

1450-1510

>= 836

>=876

406-438

80°C

(14.5-15.1)

( >= 10.5)

( >= 11)

(51-55)

33M

1130-1170

>= 836

>= 1114

247-263

100°C

(11.3-11.7)  

(>= 10.5)

( >= 14)

(31-33)

35M

1170-1220

>= 868

>= 1114

263-287

100°C

(11.7-12.2)

( >= 10.9)

( >= 14)  

(33-36)

38M

1220-1250

>= 899

>= 1114

287-310

100°C

(12.2-12.5)

( >= 11.3)

( >= 14)

(36-39)

40M

1250-1280

>= 923

>= 1114

302-326

100°C

(12.5-12.8)

( >= 11.6)

( >= 14)

(38-41)

42M

1280-1320

>= 955  

>= 1114  

318-342  

100°C

(12.8-13.2)

( >= 12.0)

( >= 14)

(40-43)

45M

1320-1380

>= 995

>= 1114

342-366

100°C

(13.2-13.8)

( >= 12.5)

( >= 14)

(43-46)

48M

1360-1430

>= 1027

>= 1114

366-390

100°C

(13.6-14.3)

( >= 12.9)

( >= 14)

(46-49)

50M

1400-1450

>= 1033

>= 1114

382-406

100°C

(14.0-14.5)

( >= 13.0)

( >= 14)

(48-51)

52M

1420-1480

>= 1059

>= 1114

390-422

100°C

(14.2-14.8)

( >= 13.3)

( >= 14)

(49-53)

35H

1170-1220

>= 868

>= 1353

263-287

120°C

(11.7-12.2)

( >= 10.9)

( >= 17)

(33-36)

38H

1220-1250

>= 899

>= 1353

287-310

120°C

(12.2-12.5)

( >= 11.3)

( >= 17)

(36-39)

40H

1250-1280

>= 923

>= 1353

302-326

120°C

(12.5-12.8)

( >= 11.6)

( >= 17)

(38-41)

42H

1280-1320

>= 955

>= 1353

318-342

120°C

(12.8-13.2)

( >= 12.0)

( >= 17)

(40-43)

45H

1320-1360

>= 963

>= 1353

326-358

120°C

(13.2-13.6)

( >= 12.1)

( >= 17)

(43-46)

48H

1370-1430

>= 995

>= 1353

366-390

120°C

(13.7-14.3)

( >= 12.5)

( >= 17)

(46-49)

50H

1400-1450

>= 1027

>= 1274

374-406

120°C

(14.0-14.5)

( >= 12.9)

( >= 16)

(47-51)

35SH

1170-1220

>= 876

>= 1592

263-287

150°C

(11.7-12.2)

( >= 11.0)

( >= 20)

(33-36)

38SH

1220-1250

>= 907

>= 1592

287-310

150°C

(12.2-12.5)

( >= 11.4)

( >= 20)

(36-39)

40SH

1240-1280

>= 939

>= 1592

302-326

150°C

(12.5-12.8)

( >= 11.8)

( >= 20)

(38-41)

42SH

1280-1320

>= 987

>= 1592

318-342

150°C

(12.8-13.2)

( >= 12.4)

( >= 20)

(40-43)

45SH

1320-1380

>= 1003

>= 1592

342-366

150°C

(13.2-13.8)

( >= 12.6)

( >= 20)

(43-46)

48SH

1370-1430

>= 1011

>= 1592

358-390

150°C

(13.7-14.3)

( >= 12.7)

( >= 20)

(45-49)

28UH

1020-1080

>= 764

>= 1990

207-231

180°C

(10.2-10.8)

( >= 9.6)

( >= 25)

(26-29)

30UH

1080-1130

>= 812

>= 1990

223-247

180°C

(10.8-11.3)

( >= 10.2)

( >= 25)

(28-31)

33UH

1130-1170

>= 852

>= 1990

247-271

180°C

(11.3-11.7)

( >= 10.7)

( >= 25)

(31-34)

35UH

1180-1220

>= 860

>= 1990

263-287

180°C

(11.8-12.2)

( >= 10.8)

( >= 25)

(33-36)

38UH

1220-1250

>= 876

>= 1990

287-310

180°C

(12.2-12.5)

( >= 11.0)

( >= 25)

(36-39)

40UH

1240-1280

>= 899

>= 1990

302-326

180°C

(12.5-12.8)

( >=11.3)

( >= 25)

(38-41)

42UH

1290-1350

>= 963

>= 1990

318-350

180°C

(12.9-13.5)

( >=12.1)

( >= 25)

(40-44)

28EH

1040-1090

>= 780

>= 2388

207-231

200°C

(10.4-10.9)

( >= 9.8)

( >= 30)

(26-29)

30EH

1080-1130

>= 812

>= 2388

223-247

200°C

(10.8-11.3)

( >= 10.2)

( >= 30)

(28-31)

33EH

1130-1170

>= 876

>= 2388

247-271

200°C

(11.3-11.7)

( >= 10.5)

( >= 30)

(31-34)

35EH

1170-1220

>= 876

>= 2388

263-287

200°C

(11.7-12.2)

( >= 11.0)

( >= 30)

(33-36)

38EH

1220-1250

>= 899

>= 2388

287-310

200°C

(12.2-12.5)

( >= 11.3)

( >= 30)

(36-39)

40EH

1260-1320

>= 939

>= 2388

302-334

      200°C

(12.6-13.2)

( >= 11.8)

( >= 30)

(38-42)

28AH

1040-1090

>=787

>= 2624

207-231

230°C

(10.4-10.9)

( >= 9.9)

( >= 33)

(26-29)

30AH

(26-29)

>=819

>= 2624

223-247

230°C

(10.8-11.3)

( >= 10.3)

( >= 33)

(28-31)

33AH

1130-1170

>= 843

>= 2624

247-271

230°C

(11.3-11.7)

(>= 10.6)

( >= 33)

(31-34)

35AH

1170-1240

>= 876

>= 2786

263-295

230°C

(11.7-12.4)

(>= 11)

( >= 35)

(33-37)

 Note:
· The above-mentioned data of magnetic parameters and physical properties are given at room temperature.
· The maximum working temperature of magnet is changeable due  to ratio of length and diameter and environment factors.

Production flow of Permanent NdFeB Magnet:

Thermal Characteristics


Neodymium Material Type

 

Thermal Expansion Coeff.

Maximum Operating Temp

Curie Temp

Thermal Conductivity

%/°C

°C (°F)

°C (°F)

kcal/m-h-°C

N

-0.12

176°F (80°C)

590°F (310°C)

7.7

M

-0.12

212°F (100°C)

644°F (340°C)

7.7

H

-0.11

248°F (120°C)

644°F (340°C)

7.7

SH

-0.10

302°F (150°C)

644°F (340°C)

7.7

UH

-0.10

356°F (180°C)

662°F (350°C)

7.7

EH

-0.10

392°F (200°C)

662°F (350°C)

7.7

The Thermal Characteristics listed above are values commonly associated with each magnet's grade or material. Actual performance in your application may vary with other factors, including the shape of the magnet, the Permeance Coefficient or load line, and how it is used in a circuit.

 

Available coatings for Sintered NdFeB magnet and Plating Characteristics 


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

Parylene

parylene

5-25

Grey

Excellent against Humidity,Salt Spray, Superior Against Solvents

 

Dimension Range / Nominal Tolerance


Ring Magnet

Outer Diameter (mm)

Inner Diameter (mm)

Thickness (mm)

Maximum

220

80

50

Minimum

2.6

1.8

0.5

Tolerance

±0.1

±0.1

±0.1

 

 

Block Magnet

Length (mm)

Width (mm)

Thickness (mm)

Maximum

250

180

50

Minimum

2.0

1.5

0.5

Tolerance

±0.1

±0.1

±0.1

 

 

Disc Magnet

Diameter (mm)

Thickness (mm)

Maximum

220

50

Minimum

1.2

0.5

Tolerance

±0.1

±0.1

Segment & other irregular shapes can be manfactured according to customer's sample or drawing

Magnetization Directions of Permanent Magnets

Corresponding parameter set not found, please add it in property template of background
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暂未实现,敬请期待

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