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NdFeB Rare Earth Magnet

NdFeB Rare Earth Magnet
NdFeB Rare Earth Magnet
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Product Code : 19
Brand Name : MAGTECH INDUSTRIAL CO
Product Description

We are a well-known manufacturer, exporter, supplier, trader, and distributor of high quality NdFeB Rare Earth Magnet. This type of magnet can withstand high working temperature up to 230 degree centigrade. Moreover, we have advanced manufacturing capabilities owing to which we are able to produce NdFeB Rare Earth Magnet in various shapes such as ring, cylinder, disc, half-ring, arc (segment), and many others as per the client requirement. It is widely appreciated for outstanding anti-corrosive property and quality consistency. Further, we have magnetized it from comprehensive directions such as axial, diametrical, radial, multi-poles, and others. On special request from customers, we can custom magnetize this type of rare earth magnet according to the preferences.  

Features:

  • Durable
  • Quality-consistent
  • Outstanding anti-corrosive property

Specifications:

  • Shapes: ring, cylinder, disc, half-ring, arc (segment), and many others
  • Temperature: up to 230 degree centigrade
  • Coating: Ni(NiCuNi), Zn, gold, copper, Epoxy and more

Directions of magnetization:

  • Axial
  • Diametrical
  • Radial
  • Multi-poles
  • Customized
  • Application:
  • Magnet separators
  • Sensors
  • Motors
  • Rotors
  • Wind turbines
  • Wind generators
  • Loudspeakers
  • Filters automobiles magnetic jewelleries
  • Toys
  • Magnetic buttons
  • Magnetic therapy
  • Magnetic hooks
  • Magnetic holder

Order Details:

  • Small order accepted, USD 1 / PC (as per the size, grade, mould / tooling charge etc.)
  • Price may vary after tax adjustment
Rare-earth Neodymium Magnet, Sintered
  • Strongest magnetic power (Power-Index(1) = 10)
  • Excellent Cost-to-Performance ratio (Cost-Index(2) = 5~7)
  • Anisotropic(3)
  • Produced by powder metallurgical engineering with chemical composition of Nd2Fe14B
  • Brittle & hard
  • High resistance to demagnetization
  • Good temperature stability
  • Require surface treatment to prevent corrosion 

Technical Specifications

Magnetic
Properties

Operating
Temperature
Tw**

Remanence (Residual Flux Density) Br

Coercive Force Hcb

Intrinsic Coercive
Force Hcj

Max Energy Products
(BH) max

Grade

°C

kG

T

kOe

kA/m

kOe

kA/m

MGOe

K/J/m3

N30

≤80

10.8~11.2

1.08~1.12

9.8~10.5

780~836

≥12

≥955

28~30

223~239

N33

≤80

11.4~11.7

1.14~1.17

10.3~11.0

820~876

≥12

≥955

31~33

247~263

N35

≤80

11.7~12.1

1.17~1.21

10.8~11.5

760~915

≥12

≥955

33~35

263~279

N38

≤80

12.2~12.6

1.22~1.26

10.8~11.5

860~915

≥12

≥955

36~38

287~303

N40

≤80

12.6~12.9

1.26~1.29

10.5~11.0

836~876

≥12

≥955

38~40

303~318

N43

≤80

13.0~13.3

1.30~1.33

10.5~11.0

836~876

≥12

≥955

41~43

326~342

N45

≤80

13.4~13.7

1.34~1.37

10.5~11.0

836~876

≥12

≥955

43~45

342~355

N30M

≤100

10.8~11.2

1.08~1.12

9.8~10.5

780~836

≥14

≥1114

28~30

233~239

N33M

≤100

11.4~11.7

1.14~1.17

10.3~11.0

820~876

≥14

≥1114

31~33

239~263

N35M

≤100

11.7~12.1

1.17~1.21

10.8~11.5

860~915

≥14

≥1114

33~35

263~279

N38M

≤100

12.2~12.6

1.22~1.26

10.8~11.5

860~915

≥14

≥1114

36~38

287~303

N40M

≤100

12.6~12.9

1.26~1.29

10.8~11.5

860~915

≥14

≥1114

38~40

303~318

N27H

≤120

10.2~10.6

1.02~1.06

9.3~10.0

740~796

≥17

≥1353

25~27

199~215

N30H

≤120

10.8~11.2

1.08~1.12

9.8~10.5

780~836

≥17

≥1353

28~30

223~239

N33H

≤120

11.4~11.7

1.14~1.17

10.3~11.0

820~876

≥17

≥1353

31~33

247~263

N35H

≤120

11.7~12.1

1.17~1.21

10.8~11.5

860~915

≥17

≥1353

33~35

263~279

N38H

≤120

12.2~12.6

1.22~1.26

11.5~12.0

915~955

≥17

≥1353

36~38

287~303

N40H

≤120

12.6~12.9

1.26~1.29

11.5~12.0

915~955

≥17

≥1353

38~40

303~318

N27SH

≤150

10.2~10.6

1.02~1.06

9.3~10.0

740~796

≥20

≥1595

25~27

199~215

N30SH

≤150

10.8~11.2

1.08~1.12

9.8~10.5

780~836

≥20

≥1595

28~30

223~239

N33SH

≤150

11.4~11.7

1.14~1.17

10.3~11.0

740~876

≥20

≥1595

31~33

247~263

N35SH

≤150

11.7~12.1

1.17~1.21

10.8~11.5

860~915

≥20

≥1595

33~35

263~279

N38SH

≤150

12.2~12.6

1.22~1.26

11.0~13.0

875~1035

≥20

≥1580

36~38

287~303

N25UH

≤180

9.8~10.2

0.98~1.02

9.2~9.6

732~764

≥25

≥1990

23~25

183~199

N28UH

≤180

10.4~10.8

1.04~1.08

9.8~10.2

780~812

≥25

≥1990

26~28

207~223

N30UH

≤180

10.8~11.2

1.08~1.12

10.1~10.6

804~844

≥25

≥1990

28~30

223~239

N33UH

≤180

11.4~11.7

1.14~1.17

10.3~11.0

740~876

≥25

≥1990

31~33

247~263

N35UH

≤180

11.7~12.1

1.17~1.21

10.8~11.4

860~907

≥25

≥1989

33~35

263~279

N27EH

≤200

10.2~10.6

1.02~1.06

9.3~10.0

740~796

≥27

≥2130

25~27

199~215

N30EH

≤200

10.8~11.2

1.08~1.12

10.1~10.6

804~844

≥27

≥2130

28~30

223~239

N32EH

≤200

11.2~11.5

1.12~1.15

10.3~11.0

740~876

≥27

≥2130

30~32

239~255

** The open flux irreversible loss at this temperature ≤5%


Physical Properties

Parameter

Curie Temperature

°C

310-370

Maximum Operating Temperature

°C

80-180

Resistivity

µW.cm

160

Hardness

Hv

560-580

Density

g/cm3

7.4

Relative Recoil Permeability

µ rec

1.05

Saturation Field Strength

kOe

30-40


kA/m

2,400-3,200

Temperature Coefficient of Br

%/°C

-0.12 ~ -0.10

Temperature Coefficient of iHc

%/°C

-0.6



 

Physical Properties

Parameter

Curie Temperature

°C

310-370

Maximum Operating Temperature

°C

80-180

Resistivity

µW.cm

160

Hardness

Hv

560-580

Density

g/cm3

7.4

Relative Recoil Permeability

µ rec

1.05

Saturation Field Strength

kOe

30-40


kA/m

2,400-3,200

Temperature Coefficient of Br

%/°C

-0.12 ~ -0.10

Temperature Coefficient of iHc

%/°C

-0.6




Surface Treatments

Type

Information

Metallic

Zinc, Blue-White-Zn, Nickel, Nickel + Nickel, Copper + Nickel, Nickel + Copper + Nickel, Gold

Organic

Epoxy, Nickel + Epoxy coating

Temporary

Surface Passivation


Dimension Range/General Tolerance

Ring

Outer Dia.

Inner Dia.

Thickness

Maximium

100.00mm

95.00mm

50.00mm

Minimum

3.80mm

1.20mm

0.50mm

Tolerance

+/-0.1mm

+/-0.1mm

+/-0.1mm

Disc

Diameter

Thickness

Maximium

100.00mm

50.00mm

Minimum

1.20mm

0.50mm

Tolerance

+/-0.1mm

+/-0.1mm


Block

Length

Width

Thickness

Maximium

100.00mm

95.00mm

50.00mm

Minimum

3.80mm

1.20mm

0.50mm

Tolerance

+/-0.1mm

+/-0.1mm

+/-0.1mm

Arc-segment

Outer Radius

Inner Radius

Thickness

Degree

Maximum

75mm

65mm

50mm

150

Minimum

1.9mm

0.6mm

0.5mm

5

Tolerance

+/-0.1mm

+/-0.1mm

+/-0.1mm

+/-0.2

Remark: Other shapes can be manufactured according to customer’s sample or blue print



MAGTECH INDUSTRIAL CO.
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