中国磁源材料有限公司

China Magnets Source Material Limited

Brief Introduction of CMS Magnets

Set up in 1990, China Magnets Source Material Limited (CMS Magnets) specializes in research and development,

production and sale of permanent magnet; products include NdFeB, ferrite, SmCo, AlNiCo, magnetic assembly.

The company occupies a land area of 19,950 square meters and the annual output neodymium magnet reaches

1600 tons, SmCo 150 tons, Alnico 600 tons, Ferrite 9000 tons. We have a high qualified team consists of 30 PhD

degreed engineers, and over 600 well trained workers. The company has passed ISO9001:2008 and

ISO/TS16949:2009. All products are in line with RoHs of international environmental indicators.

Our company has a good reputation with the perennial cooperators for Nd-Fe-B permanent magnet on the high

resistance to corrosion, high performance and high coercivity; such as grade -M, -H, -SH, -UH, -EH. NdFeB magnet

is mainly used in PM motor, oil energy, automobile industry, wind energy, audio-visual equipment, electronic

industry, IT, medical equipment, mining equipment, industrial automation, sports equipment, electric tools and

civil industry (package, toys, stationery, printing, gifts and crafts, electrical home appliances etc.)

Our company adheres to "customer first, positive ahead” as our business philosophy, insists on the principle of"

Quality First "to provide high quality service for our clients.

Sintered Neodymium Iron Boron magnet

Also known as NdFeB, Neo magnet; it is a permanent magnet which made from an alloy of neodymium, iron and

boron. Neodymium has the greatest field strength of any permanent magnet known; it is the most widely used

type of rare-earth magnet.

Typical Physical Properties of Sintered NdFeB

Parameter Unit Standard Data

Curie Temperature ℃ 310-380

Maximum Operating Temperature ℃ 80-200

Hardness Hv 620

Electrical Resistivity W.cm 1.8x10-4-2.0x10-4

Density g/cm3 7.50-7.65

Recoil Permeability 1.05

Magnetization Field Strength Koe ≥30

Magnetization Field Strength KA/m ≥2400

Bending Strength Mpa 295-345

Temp. Coefficient of Br %/℃ -0.11~-0.12

Temp. Coefficient of Hcj %/℃ -0.5~-0.7

Magnetic Characteristics and Physical Properties of Sintered NdFeB

Grade

Br HcB HcJ （BH）max KJ/m3

Max Working

Temp.

mT（KGs） KA/m（KOe） KA/m（KOe） （MGOe） °C

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(≧11) 382-406(48-51) ≤80

N52 1430-1480(14.3-14.8) ≧796( ≧10.0) ≧876( ≧11) 398-422(50-53) ≤80

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 (≧13.0) ≧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

Grade

Br HcB HcJ （BH）max KJ/m3

Max Working

Temp.

mT（KGs） KA/m（KOe） KA/m（KOe） （MGOe） °C

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 1320-1380(13.2-13.8) ≧955(≧12.0) ≧1353(≧17) 335-366(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) ≧1672(≧20) 223-247(28-31) ≤150

N33SH 1130-1170(11.3-11.7) ≧ 844( ≧10.6) ≧1672(≧20) 247-271(31-34) ≤150

N35SH 1170-1220(11.7-12.2) ≧876 (≧11.0) ≧1672(≧20) 263-287(33-36) ≤150

N38SH 1220-1250(12.2-12.5) ≧907(≧11.4) ≧1672(≧20) 287-310(36-39) ≤150

N40SH 1240-1280(12.5-12.8) ≧939( ≧11.8) ≧1672(≧20) 302-326(38-41) ≤150

N42SH 1280-1320(12.8-13.2) ≧ 987 ( ≧12.4) ≧1672(≧20) 320-343(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 1180-1220 (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

N30AH 1170-1220(11.7-12.2) ≧ 876 (≧11.0) ≧2388( ≧30) 263-287(33-36) ≤240

N33AH 1220-1250(12.2-12.5) ≧ 899( ≧11.3) ≧2388( ≧30) 287-310(36-39) ≤240

Bonded Neodymium Iron Boron magnet

Bonded neodymium magnet can be made into many kinds of complicated shapes with iron parts, copper parts,

plastic parts, housing case and shaft injected to make magnetic assembly. Bonded with high dimensional

accuracy, high degree of shape freedom, excellent machinery intension, light weight, can be able to make a

variety of magnetization direction, for example, oblique direction, radial direction, and diametrical 2-64 poles

direction.

Magnetic Characteristics and Physical Properties of Bonded NdFeB

Grade BNP-3 BNP-6 BNP-8 BNP-8SR BNP-9H BNP-10 BNP-11 BNP-12L

Br

(mT) 450-510 590-650 620-670 620-660 650-700 680-720 700-740 730-770

Br

(Gs) 4500-5100 5900-6500 6200-6700 6200-6600 6500-4000 6800-7200 7000-7400 7300-7700

Hcb

(kA/m) 199-263 302-374 390-454 405-470 421-484 413-477 430-493 366-430

Hcb

(kOe) 2.5- 3.3 3.8-4.7 4.9-5.7 5.1-5.9 5.3-6.1 5.2-6.0 5.4-6.2 4.6-5.4

Hcj

(kA/m) 477-597 597-796 636-796 955-1114 915-1034 636-796 636-796 517-637

Hcj

(kOe) 6.0-7.5 7.5-10.0 8.0-10.0 12.0-14.0 11.5-13.0 8.0-10.0 8.0-10.0 6.5-8.0

(BH)max

(kJ/m 3) 24-32 44-53.6 60-68 65.6-72 72-80 76-84 80-88 84-92

(BH)max

(MGOe) 3.0-4.0 5.5-7.0 8.0-9.5 8.2-9.0 9.0-10.0 9.5-10.5 10.0-11.0 10.5-11.5

Tw(℃) 120 120 120 160 160 120 120 110

Samarium Cobalt Magnet

SmCo is generally ranked similarly in strength to neodymium magnets, but have higher temperature ratings (max

350℃), higher coercivity and very low temperature coefficient (-0.030% / ℃). They are brittle, and prone to

cracking and chipping. Samarium–cobalt magnets have maximum energy products (BHmax) that range from 16

MGOe to 32 MGOe, that is approx. 128 kJ/m3 to 256 kJ/m3; their theoretical limit is 34 MGOe, about 272 kJ/m3.

They are available in two "series", namely Series 1:5 and Series 2:17.

Magnetic Characteristics and Physical Properties of Samarium Cobalt Magnet

Series Grade Br Hcb Hcj BHmax Density

Max

Tw

Unit kGs mT kA/m kOe kA/m kOe KJ/m3 MGOe g/cm3 ℃

1:5

SmCo16 8.1-8.5 8100-8500 620-660 7.8-8.3 1194-1830 15-23 110-127 14-16 8.3 250

SmCo18 8.5-9.0 8500-9000 660-700 8.3-8.8 1194-1830 15-23 127-143 16-18 8.3 250

SmCo20 9.0-9.4 9000-9400 676-725 8.5-9.1 1194-1830 15-23 150-167 19-21 8.3 250

SmCo22 9.2-9.6 9200-9600 710-748 8.9-9.4 1194-1830 15-23 160-175 20-22 8.3 250

SmCo24 9.6-10.0 9600-1000 730-770 9.2-9.7 1194-1830 15-23 175-190 22-24 8.4 300

2:17

SmCo26 1.02-1.05 1020-1050 748-796 9.4-10.0 ≥1433 18 191-207 24-26 8.4 300

SmCo28 1.03-1.08 1030-1080 756-812 9.5-10.2 ≥1433 18 207-220 26-28 8.4 300

SmCo30 1.08-1.10 1080-1100 788-835 9.9-10.5 ≥1433 18..0 220-240 28-30 8.4 300

SmCo24H 9.5-10.2 950-1020 692-764 8.7-9.6 ≥1990 25 175-191 22-24 8.4 350

SmCo26H 10.2-10.5 1020-1050 748-796 9.4-10 ≥1990 25 191-207 24-26 8.4 350

SmCo28H 10.3-10.8 1030-1080 756-812 9.5-10.2 ≥1990 25 207-220 26-28 8.4 350

SmCo30H 10.8-11.0 1080-1100 788-835 9.9-10.5 ≥1990 25 220-240 28-30 8.4 350

AlNiCo magnet

An iron alloy, it includes iron, aluminum, nickel, cobalt and small amounts of other metals. With high remanence

(up to 1.35T), high quality, the highest temperature up to about 550 ℃, low temperature coefficient (-0.02% /℃).

Excellent thermal stability, Good corrosion resistance (no surface plating treatment, if necessary for good exterior

appearance, can also be coated or painted), the diversity of shape and size, reasonable price, low mold fees.

Magnetic Characteristics and Physical Properties of Sintered AlNiCo Magnet

Grade Br Hcb Hcj BHmax Density

Remark kGs mT kA/m Oe kA/m Oe KJ/m3 MGOe g/cm3

FLN8 5.2 520 40 500 43 540 8-10 1-1.25 6.8

Isotropic FLNG12 7 700 40 500 43 540 12-14 1.5-1.75 6.9

FLNG14 5.7 570 76 950 78 980 14-16 1.75-2.0 6.9

FLNG18 5.6 560 88 1100 90 1130 18-22 2.25-2.75 7

FLNG28 10.5 1050 46 580 47 590 28-33 3.5-4.15 7.3

Anisotropic

FLNG34 11 1100 48 600 50 630 33-38 4.1-4.7 7.3

FLNG35 12.2 1220 50 630 51 640 35-39 4.4-4.9 7.3

FLNGT28 10 1000 56 700 57 710 28-30 3.5-3.8 7.3

FLNGT31 7.8 780 104 1300 106 1130 33-36 3.9-4.5 7.3

FLNGT38 8 800 123 1550 126 1580 38-42 4.75-5.3 7.3

FLNGT42 8.8 880 120 1500 122 1530 42-44 5.3-5.5 7.3

FLNGT44 9 900 120 1500 125 1560 44-48 5.5-6.0 7.3

FLNG33J 6.5 650 136 1700 150 1880 31-36 4.1-4.5 7.3

FLNGT40J 8 800 1440 1800 155 1950 40-44 5.0-5.5 7.3

FLNGT44J 8.2 820 1520 1900 160 2000 44-48 5.5-6.0 7.3

US Standard

AlNiCo2 7.1 710 44 550 45 570 11.9 1.5 6.9 Isotropic

AlNiCo5 10.9 1090 49 620 50 630 31 3.9 7.3

Anisotropic AlNiCo6 9.4 940 63 790 65 820 23.1 2.9 7.3

AlNiCo8 7.4 740 119 1500 134 1690 31.8 4 7.3

AlNiCo8HC 6.7 670 143 1800 161 2020 35.8 4.5 7.3

Magnetic Characteristics and Physical Properties of Cast AlNiCo Magnet

Grade Br Hcj BHmax

USA

stand IEC stand

DIN

stand UK stand

kGs mT Oe kA/m KJ/m3 MGOe MMPA IEC DE UK

LN10 6.5 650 530 42 10 1.2 AlNiCo3 AlNiCo9/3 / /

LNG11 7.2 720 480 37 11.2 1.4 AlNiCo1 AlNiCo8/4 AlNiCo120 AlNi

LNG13 7 700 620 50 13 1.6 AlNiCo2 AlNiCo12/6 AlNiCo160 AlNiCo

LNGT18 5.8 580 1250 100 18 2.2 AlNiCo 8 AlNiCo17/9 / /

LNG16 8 800 660 53 16 2 AlNiCo4 / / /

LNG34 11.8 1180 550 44 34 4.25 AlNiCo5C

/ / /

LNG37 12 1200 600 48 37 4.65 AlNiCo37/5

AlNiCo500

Alcomax2

LNG40 12.2 1220 630 50 40 5 AlNiCo5

/ /

LNG44 12.5 1250 650 52 44 5.5 AlNiCo44/5 Alcomax3

LNG52 13 1300 690 55 52 6.5 AlNiCo5DG AlNiCo52/6 AlNiCo600 Alcomax3

S.C.

LNG60 13.3 1330 750 60 60 7.5 AlNiCo5-7 / AlNiCo700 Columax

LNGT28 10.5 1050 700 56 28 3.5 AlNiCo6

AlNiCo26/6 AlNiCo400 Alcomax4

LNGT30 10.5 1050 750 60 30 3.75

LNGT32 8 800 1280 102 32 4 AlNiCo8 AlNiCo38/11 AlNiCo350 Hycomax2

LNGT40 8.2 820 1400 112 40 5

LNGT44 8.8 880 1540 123 44 5.5 AlNiCo8B / AlNiCo450 Hycomax3

LNGT48A 9.3 930 1540 123 48 6

AlNiCo8HE

LNGT48B 8.5 850 1650 132 48 6

LNGT60 9 900 1380 110 60 7.5 AlNiCo60/11 / /

LNGT72 10.5 1050 1410 112 72 9

AlNiCo9

/ / /

LNGT80 10.8 1080 1540 123 80 10

LNGT88 11 1100 1575 126 88 11

LNGT92 11.5 1150 1575 126 92 11.5

LNGT36J 7 700 1750 140 36 4.5

AlNiCo8HC

AlNiCo36/15 / /

LNGT40J 7.2 720 1900 152 40 5

LNGT44J 8.2 820 1800 144 44 5.5 AlNiCo44/15 / /

Ferrite

It is the most common form of permanent magnet, including barium (Ba) and strontium material (Sr) two kinds.

It is divided into anisotropic and isotropic. The maximum operating temperature is up to 250ºC, hard and brittle.

Magnetic Characteristics and Physical Properties of Ferrite

Grade Br HcB HcJ (BH) max

mT KG KA/m KOe KA/m KOe Kj/m3 MGOe

Y8T 200~235 2.0~2.35 125~160 1.57~2.01 210~280 2.64~3.52 6.5~9.5 0.8~1.2

Y20 320~380 3.2~3.8 135~190 1.70~2.38 140~195 1.76~2.45 18.0~22.0 2.3~2.8

Y22H 310~360 3.1~3.6 220~2500 2.77~3.14 280~320 3.52~4.02 20.0~24.0 2.5~3.0

Y23 320~370 3.2~3.7 170~190 2.14~2.38 190~230 2.39~2.89 20.0~25.5 2.5~3.2

Y25 360~400 3.6~4.0 135~170 1.70~2.14 140~200 1.76~2.51 22.5~28.0 2.8~3.5

Y26H 360~390 3.6~3.9 220~250 2.77~3.14 225~255 2.83~3.21 23.0~28.0 2.9~3.5

Y27H 370~400 3.7~4.0 205~250 2.58~3.14 210~255 2.64~3.21 25.0~29.0 3.1~3.7

Y28 370~400 3.7~4.0 175~210 2.20~2.64 180~220 2.26~2.77 26.0~30.0 3.3~3.8

Y30 370~400 3.7~4.0 175~210 2.20~2.64 180~220 2.26~2.7 26.0~30.0 3.3~3.8

Y30H-1 380~400 3.8~4.0 230~275 2.89~3.46 235~290 2.95~3.65 27.0~32.0 3.4~4.1

Y30H-2 395~415 3.95~4.15 275~300 3.46~3.77 310~335 3.90~4.21 28.5~32.5 3.5~4.0

Y32 400~420 4.0~4.2 160~190 2.01~2.38 165~195 2.07~2.45 30.0~33.5 3.8~4.2

Y33 410~430 4.1~4.3 220~250 2.77~3.14 225~255 2.83~3.21 31.5~35.0 4.0~4.4

US standard

C1 230 2.3 148 1.86 258 3.5 8.36 1.05

C5 380 3.8 191 2.4 199 2.5 27 3.4

C7 340 3.4 258 3.23 318 4 21.9 2.75

C8A 385 3.85 235 2.95 242 3.05 27.8 3.5

C8B 420 4.2 232 2.913 236 2.96 32.8 4.12

C9 380 3.8 280 3.516 320 4.01 26.4 3.32

C10 400 4 288 3.617 280 3.51 30.4 3.82

C11 430 4.3 200 2.512 204 2.56 34.4 4.32

Magnetic Assembly

Ferrite with plastic Ndfeb with plastic Magnet with 3M adhesive

Magnet with rubber Magnet with steel Magnet rotor

Demagnetization Curves of Sintered Ndfeb Magnet

Types of Magnetization Direction

Coating of Magnet

NiCuNi Ag

Color Zn

irection

Ag Black epoxy Grey epoxy

Cu Au

Zn

Inspection Equipments

Salt Spray Oxygen Content Tester

Magnetism Tester Laser diffraction

Test Preparation

Before the test After the test

Product Showroom

Application of Magnet

Automation

Home appliance

Motor assemblies

Transportation

MRI

Wind turbine

Acoustics

Communication equipments

Magnet

China Magnets Source Material Limited

ADD: 66, Xianghenglang, Longhua District,

Shenzhen, Guangdong province, China

P.C: 518109

Fax: (86)755 28174720

Tel: (86)755 28174720

E-mail: info@cmsmagnets.com

Website: www.cmsmagnets.com