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Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies
Sintered NdFeB Magnets and Assemblies

Sintered NdFeB Magnets and Assemblies

NdFeB permanent magnet has extremely high properties (high residual induction, coercive force and energy product) with really competitive price. It can be machined into all kinds of shapes easily and used in many fundamental fields directly, such as new energy, vehicles, electron & electroacoustic, energy saving household appliances, industrial motor, instrument & apparatus, nuclear magnetic resonance, magnetic suspension field and so on. Magnets are also suitable for the high property, mini-size and lighted products.

Features

AT&M is a magnetic material supplier with R&D, production and sales ability. We are providing top level magnets with customized coatings, weights and shapes. We also provide the design program, great service and technical support during all life cycle.

AT&M has great power in R&D and holds Hitachi license. We have two production bases in Beijing and Shandong producing high grade magnets. The total capacity reaches 6000t. For the past several year, we supplied top level products and service to the customers including the world top 500 enterprises.

Typical Applications

Typical applications are as below:

? ?vehicle

?EPS motor/drive motor/electricity generator/pump/sensors

? ?electronics

?mobile/digital camera/hard disk drive/CD drive

? ?automation

?servo motor/elevator motor/liner motor/electric tools

? ?energy

?wind power

? ?environment

?inverter air-conditioner/refrigerator/washing machine

? ?medical technology

?nuclear magnetic resonance/CT scanner/ventilator

? ?aerospace & ship

?ship powertrain

? ?railway

?electricity powertrain

Technical Specifications

AT&M Materials Grade Chart
Grade Br?? Hcb / ≥ Hcj / ≥ (BH)max?
? T KGs kA/m kOe kA/m kOe kJ/m3 MGOe
ATMAX42 1.28~1.34 12.8~13.4 876 11.0 955 12 318~342 40~43
ATMAX45 1.32~1.38 13.2~13.8 876 11.0 955 12 342~366 43~46
ATMAX48 1.36~1.43 13.6~14.3 836 10.5 955 12 358~390 45~49
ATMAX50 1.39~1.46 13.9~14.6 836 10.5 955 12 374~406 47~51
ATMAX52 1.42~1.48 14.2~14.8 836 10.5 955 12 390~422 49~53
ATMAX54 1.44~1.51 14.4~15.1 836 10.5 955 12 398~438 50~55
ATMAX56 1.46~1.53 14.6~15.3 836 10.5 955 12 414~454 52~57
ATMAX42M 1.28~1.34 12.8~13.4 938 11.8 1114 14 318~342 40~43
ATMAX45M 1.32~1.38 13.2~13.8 976 12.2 1114 14 342~366 43~46
ATMAX48M 1.36~1.43 13.6~14.3 1012 12.7 1114 14 358~390 45~49
ATMAX50M 1.39~1.46 13.9~14.6 1035 13.0 1114 14 374~406 47~51
ATMAX52M 1.42~1.48 14.2~14.9 1042 13.1 1114 14 382~422 48~53
ATMAX40H 1.25~1.31 12.5~13.1 912 11.5 1353 17 302~326 38~41
ATMAX42H 1.28~1.34 12.8~13.4 938 11.8 1353 17 318~342 40~43
ATMAX45H 1.32~1.38 13.2~13.8 976 12.2 1353 17 342~366 43~46
ATMAX48H 1.36~1.43 13.6~14.3 1000 12.6 1353 17 358~390 45~49
ATMAX50H 1.39~1.46 13.9~14.6 1035 13 1353 17 374~406 47~51
ATMAX52H 1.42~1.48 14.2~14.9 1042 13.1 1274 16 382~422 48~53
ATMAX38SH 1.21~1.27 12.1~12.7 886 11.1 1592 20 287~310 36~39
ATMAX40SH 1.25~1.31 12.5~13.1 912 11.5 1592 20 302~326 38~41
ATMAX45SH 1.32~1.38 13.2~13.8 976 12.2 1592 20 342~366 43~46
ATMAX48SH 1.36~1.43 13.6~14.3 1000 12.6 1592 20 358~390 45~49
ATMAX50SH 1.39~1.46 13.9~14.6 1035 13 1592 20 374~406 47~51
ATMAX48SH-D 1.36~1.43 13.6~14.3 1000 12.6 1592 20 358~390 45~49
ATMAX50SH-D 1.39~1.46 13.9~14.6 1035 13 1592 20 374~406 47~51
ATMAX52SH-D 1.42~1.49 14.2~14.9 1050 13.2 1592 20 390~422 49~53
ATMAX54SH-D 1.44~1.51 14.4~15.1 1058 13.3 1592 20 390~422 50~55
ATMAX35UH 1.16~1.22 11.6~12.2 845 10.6 1990 25 263~287 33~36
ATMAX38UH 1.21~1.27 12.1~12.7 886 11.1 1990 25 287~310 36~39
ATMAX40UH 1.25~1.31 12.5~13.1 912 11.5 1990 25 302~326 38~41
ATMAX42UH 1.28~1.34 12.8~13.4 938 11.8 1990 25 318~342 40~43
ATMAX45UH 1.31~1.37 13.1~13.7 976 12.2 1990 25 342~366 43~46
ATMAX45UH-D 1.31~1.37 13.1~13.7 976 12.2 1990 25 342~366 43~46
ATMAX48UH-D 1.36~1.43 13.6~14.3 1000 12.6 1990 25 358~390 45~49
ATMAX50UH-D 1.39~1.46 13.9~14.6 1035 13 1990 25 374~406 47~51
ATMAX31AH 1.09~1.16 10.9~11.6 772 9.7 2149 27 231~263 29~33
ATMAX34AH 1.15~1.22 11.5~12.2 836 10.5 2149 27 255~287 32~36
ATMAX37AH 1.20~1.26 12.0~12.6 886 11.1 2149 27 279~310 35~39
ATMAX40AH 1.25~1.31 12.5~13.1 912 11.5 2149 27 302~326 38~41
ATMAX42AH 1.28~1.34 12.8~13.4 938 11.8 2149 27 318~342 40~43
ATMAX42AH-D 1.28~1.34 12.8~13.4 938 11.8 2149 27 318~342 40~43
ATMAX45AH-D 1.32~1.38 13.2~13.8 976 12.2 2149 27 342~366 43~46
ATMAX48AH-D 1.35~1.42 13.5~14.2 1000 12.6 2149 27 358~390 45~49
ATMAX30EH 1.07~1.14 10.7~11.4 772 9.7 2388 30 223~247 28~31
ATMAX33EH 1.12~1.19 11.2~11.9 816 10.2 2388 30 247~271 31~34
ATMAX35EH 1.16~1.22 11.6~12.2 845 10.6 2388 30 263~287 33~36
ATMAX38EH 1.21~1.27 12.1~12.7 886 11.1 2388 30 279~310 35~39
ATMAX40EH 1.25~1.31 12.5~13.1 912 11.5 2388 30 302~326 38~41
ATMAX40EH-D 1.25~1.31 12.5~13.1 912 11.5 2388 30 302~326 38~41
ATMAX42EH-D 1.28~1.34 12.8~13.4 938 11.8 2388 30 318~342 40~43
ATMAX45EH-D 1.32~1.38 13.2~13.8 976 12.2 2388 30 342~366 43~46
ATMAX48EH-D 1.35~1.42 13.5~14.2 1000 12.6 2388 30 342~366 43~46
ATMAX30TH 1.06~1.15 10.6~11.5 765 9.6 2627 33 223~255 28~32
ATMAX33TH 1.12~1.19 11.2~11.9 816 10.2 2627 33 247~271 31~34
ATMAX35TH 1.16~1.22 11.6~12.2 845 10.6 2627 33 263~287 33~36
ATMAX38TH 1.21~1.27 12.1~12.7 886 11.1 2627 33 279~310 35~39
ATMAX40TH-D 1.25~1.31 12.5~13.1 912 11.5 2627 33 302~326 38~41
ATMAX42TH-D 1.28~1.34 12.8~13.4 938 11.8 2627 33 318~342 40~43
ATMAX45TH-D 1.32~1.38 13.2~13.8 976 12.2 2627 33 342~366 43~46

 

Coating Type Physical Properties Environment of Magnet Application Thickness of Coating Layer Pictures
?Zinc Layer with three kinds of color: silver, blue and white, rainbow etc.Coating layer is compact, stable and homogeneous. Suitable for common environment. 4μm ~ 10μm
Nickel Homogeneous and Light yellow layer. NiCuNi:Excellent corrosion resistance. Superior resistance against humidity and heat. 15μm ~ 30μm
Epoxy Black, gray layer with certain luster. Suitable for higher corrosive
environment.
≥15μm
Al The coating has silver-white metallic luster, uniform color and clean surface It is used in high anti-corrosion occasions, and the coating has no shielding effect on magnetic properties. ?10μm ~ 25μm
Passivation
(Phosphorization)
Colorless or light gray layer Suitable for the situation of short-term transportation and storage. ≤2μm
Micro Bluing Colorless or light blue layer Suitable for the situation of short-term transportation and storage. ≤2μm

 

 

Curie Point 310~370
Reversible temp coeffcient of Br 20-120℃ %/℃ -0.1~-0.13%
?Reversible temp coeffcient of Hcj 20-120℃ %/℃ -0.4~-0.7%
Density g/cm3 7.3~7.7
?Vickers hardness Hv 500~700
Bending strength Mpa 150~400
Compressive strength Mpa 800~1250
Specific resistiance μΩcm 110~170
Thermal conductivity W/(m.℃) 5~15
Coefficient of thermal expansion 10-6/℃ 4~9
Coefficient of thermal expansion 10-6/ -2~0
Specific heat J/(kg.℃) 350~550
Young’s modulus GPa 140~170

 

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