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NdFeB

NdFeB (Neo) Permanent Magnets

Bonded NdFeB (Neo) Magnets

Compression Molded

• Fully licensed products

• Material grades available: (BH) max up to 12 MGOe

• Sizes and shapes produced according to customer drawings

Injection Molded

• Fully licensed products

• Material grades available: (BH) max up to 8.4 MGOe

• Sizes and shapes produced according to customer drawings

Sintered NdFeB (Neo) Magnets

• Fully licensed products

• Material grades available: Up to N48, 45M, 42H, 40SH and more

• Sizes and shapes produced according to customer drawings

• Large selection of standard sizes in ring, disc, rectangle, and other shapes

• Available coatings: Zn, Color Zn, Ni, NiCuNi (double Nickel), Phosphate, and CVD (Chemical Vapor Deposition)

Factory Specifics

Factory #1 Factory Overview Pictures

• Specializes in NdFeB

• Founded in 1995

• ISO 9001 Certified

• One of the largest producers of NdFeB magnets in China

• Sales are to U.S., Germany, and Japan

• Major customer are in the electronic and automotive industries

• Purchased patent license from Sumitomo

Magnetic Characteristics and Physical Properties of Compression Molded NdFeB Magnets

Grade BNP-6 BNP-8 BNP-10 BNP-12 BNP-8H

Maximum Energy Product
Br

G
520-600 600-650 650-700 700-760 550-620

Residual Flux Density
bHc

KOe
3.8-4.5 4.5-5.4 5.4-5.8 5.8-6.0 5.0-6.0

Coercive Force
iHc

KOe
8.0-10.0 8.0-12.0 8.0-12.0 8.0-11.0 12.0-16.0

Intrinsic Coercive Force
BHmax

MGOe
5-7 7-9 9-10 10-12 6-9

Density
D

g/cm³
5.3-5.8 5.6-6.0 5.8-6.1 6.0-6.2 5.6-6.0

Recoil Permeability
μr
1.15 1.15 1.22 1.22 1.15

Reversible Temperature Coefficient
Br

%/°C
-0.13 -0.13 -0.07~-0.105 -0.13 -0.07~-0.13

Maximum Service Temperature
Tw

°C
140 140 120 130 120

Magnetic Characteristics and Physical Properties of Injection Molded NdFeB Magnets

Grade	BNI-2	BNI-4	BNI-6	BNI-8	BNI-6H
Maximum Energy Product Br G	200-400	400-490	490-570	570-630	480-560
Residual Flux Density bHc KOe	1.5-3.0	3.0-4.0	4.0-4.8	4.8-5.4	4.2-5.0
Coercive Force iHc KOe	7.0-9.0	7.2-9.2	8.0-10.0	8.5-10.5	13.0-17.0
Intrinsic Coercive Force BHmax MGOe	0.80-3.0	3.5-4.5	5.2-7.0	7.4-8.4	5.0-6.5
Density D g/cm³	3.5-4.0	4.0-5.0	5.0-5.5	5.0-5.5	5.0-5.5
Recoil Permeability μr	1.25	1.20	1.20	1.20	1.13
Reversible Temperature Coefficient Br %/°C	-0.15	-0.10	-0.10	-0.10	-0.15
Maximum Service Temperature Tw °C	130	130	110	120	110

Magnetic Characteristics and Physical Properties of Sintered NdFeB

Grade Maximum Energy Product
Br

KGs
Residual Flux Density
bHc

KOe
Coercive Force
iHc

KOe
Intrinsic Coercive Force
BHmax

MGOe
Density
D

g/cm³
Curie Temp.
Tc

°C
Reversible Temperature Coefficient
Br. Temp.

coefficient%/°C
Maximum Service Temperature
Tw

°C

N30 10.8-11.3 ≥10.2 ≥12 30-31 7.4-7.6 310 -0.012 ≤80

N33 11.3-11.7 ≥10.5 ≥12 31-33 7.4-7.6 310 -0.012 ≤80

N35 11.7-12.1 ≥10.9 ≥12 33-36 7.4-7.6 310 -0.012 ≤80

N38 12.1-12.5 ≥11.3 ≥12 36-37 7.4-7.6 310 -0.012 ≤80

N40 12.5-12.8 ≥11.6 ≥12 38-41 7.4-7.6 310 -0.012 ≤80

N42 12.8-13.2 ≥11.6 ≥12 40-43 7.4-7.6 310 -0.012 ≤80

N45 13.2-13.8 ≥11.0 ≥12 43-46 7.4-7.6 310 -0.012 ≤80

N48 13.8-14.2 ≥10.5 ≥11 46-49 7.4-7.6 310 -0.012 ≤80

N35M 11.7-12.1 ≥10.9 ≥14 33-36 7.4-7.6 320 -0.012 ≤100

N38M 12.1-12.5 ≥11.3 ≥14 36-37 7.4-7.6 320 -0.012 ≤100

N40M 12.5-12.8 ≥11.6 ≥14 38-41 7.4-7.6 320 -0.012 ≤100

N42M 12.8-13.2 ≥11.6 ≥14 40-43 7.4-7.6 320 -0.012 ≤100

N45M 13.2-13.8 ≥11.0 ≥14 43-46 7.4-7.6 320 -0.012 ≤100

30H 10.8-11.3 ≥10.2 ≥17 30-31 7.4-7.6 340 -0.010 ≤120

33H 11.3-11.7 ≥10.5 ≥17 31-33 7.4-7.6 340 -0.010 ≤120

35H 11.7-12.1 ≥10.9 ≥17 33-36 7.4-7.6 340 -0.010 ≤120

38H 12.1-12.5 ≥11.3 ≥17 36-37 7.4-7.6 340 -0.010 ≤120

40H 12.5-12.8 ≥11.6 ≥17 38-41 7.4-7.6 340 -0.010 ≤120

42H 12.8-13.2 ≥12.0 ≥17 40-43 7.4-7.6 340 -0.010 ≤120

30SH 10.8-11.3 ≥10.2 ≥20 30-31 7.4-7.6 340 -0.010 ≤150

33SH 11.3-11.7 ≥10.6 ≥20 31-33 7.4-7.6 340 -0.010 ≤150

35SH 11.7-12.1 ≥11.0 ≥20 33-36 7.4-7.6 340 -0.010 ≤150

38SH 12.1-12.5 ≥11.4 ≥20 36-37 7.4-7.6 340 -0.010 ≤150

40SH 12.5-12.8 ≥11.8 ≥20 38-41 7.4-7.6 340 -0.010 ≤150

28UH 10.2-10.8 ≥9.6 ≥25 26-29 7.4-7.6 350 -0.010 ≤180

30UH 10.8-11.3 ≥10.2 ≥25 28-31 7.4-7.6 350 -0.010 ≤180

33UH 11.3-11.7 ≥10.7 ≥25 31-33 7.4-7.6 350 -0.010 ≤180

28EH 10.4-10.9 ≥9.8 ≥30 26-29 7.4-7.6 350 -0.010 ≤200

30EH 10.8-11.3 ≥10.2 ≥30 28-31 7.4-7.6 350 -0.010 ≤200