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  • Hangzhou SDM Magnetics Co., Ltd.

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Product Description

    • Model NO.: SDMNC
    • Shape: Block
    • Certification: ISO9001:2008, ISO/Ts16949:2009 and RoHS
    • Origin: China (Mainland)
    • Application: Industrial Magnet, Motor Magnet
    • Coating: Nickel
    • Trademark: SDM
    • HS Code: 8505111000
    Small Cylinder Permanent Neodymium Magnet From China

    Neodymium magnet offer the strongest magnetic power today. They are particularly suitable for high volume production in a wide variety of shape and size. Precise dimensional control is achieved in machining processes.
    1. Applications: Motors, Generators, Sensors, Speakers, Earphones and other musical instruments, Magnetic therapy devices, Magnetic Chuck, Magnetic bearings and couplings, NdFeB Pot Magnet and other magnetic applications.


    2. Grade: N35-N52, N35M-N50M, N35H-N48H, N35SH-N45SH, N28UH-N42UH, N28EH-N40EH, N28AH-N38AH.


    3. Shape: Customized

    4. Coating: Ni, Ni-Cu-Ni, Zn(Cr3+), Tin, Epoxy, Ni-Ag, Ni-Au, Passivation, Parylene, etc.


    5. Size: Customized size per your requirements.

    6. Certification: ISO9001: 2008, ISO/TS16949: 2009 and RoHS.
    / Sintered NdFeB Magnet
    Grade                     
     Residual Induction (Br) Coercive Force      (Hcb) Intrinsic Coercive Force (Hcj) Max Energy Product (BH)max  Temp. Coefficient              Tk Max Working Temp.  Curie Temp.
    T kGs kA/m kOe kA/m kOe kJ/m³ MGOe %/ºC(Br) %/ºC(Hcj) ºC ºC
    N35 1.17-1.22 11.7-12.2 ≥868 ≥10.9 ≥955 ≥12 263-287 33-36 -0.12 -0.70 80 310
    N38 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥955 ≥12 287-310 36-39 -0.12 -0.70 80 310
    N40 1.25-1.28 12.5-12.8 ≥907 ≥11.4 ≥955 ≥12 302-326 38-41 -0.12 -0.70 80 310
    N42 1.28-1.32 12.8-13.2 ≥915 ≥11.5 ≥955 ≥12 318-342 40-43 -0.12 -0.70 80 310
    N45 1.32-1.38 13.2-13.8 ≥923 ≥11.6 ≥955 ≥12 342-366 43-46 -0.12 -0.70 80 310
    N48 1.38-1.42 13.8-14.2 ≥923 ≥11.6 ≥955 ≥12 366-390 46-49 -0.12 -0.70 80 310
    N50 1.40-1.45 14.0-14.5 ≥796 ≥10.0 ≥876 ≥11 382-406 48-51 -0.12 -0.70 60 310
    N52 1.43-1.48 14.3-14.8 ≥796 ≥10.0 ≥876 ≥11 398-422 50-53 -0.12 -0.70 60 310
    N35M 1.17-1.22 11.7-12.2 ≥868 ≥10.9 ≥1114 ≥14 263-287 33-36 -0.12 -0.70 100 310
    N38M 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥1114 ≥14 287-310 36-39 -0.12 -0.70 100 310
    N40M 1.25-1.28 12.5-12.8 ≥923 ≥11.6 ≥1114 ≥14 302-326 38-41 -0.12 -0.70 100 310
    N42M 1.28-1.32 12.8-13.2 ≥955 ≥12.0 ≥1114 ≥14 318-342 40-43 -0.12 -0.70 100 310
    N45M 1.32-1.38 13.2-13.8 ≥995 ≥12.5 ≥1114 ≥14 342-366 43-46 -0.12 -0.70 100 310
    N48M 1.37-1.43 13.7-14.3 ≥1027 ≥12.9 ≥1114 ≥14 366-390 46-49 -0.12 -0.70 100 310
    N50M 1.40-1.45 14.0-14.5 ≥1033 ≥13 ≥1114 ≥14 382-406 48-51 -0.12 -0.70 100 310
    N35H 1.17-1.22 11.7-12.2 ≥868 ≥10.9 ≥1353 ≥17 263-287 33-36 -0.12 -0.70 120 310
    N38H 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥1353 ≥17 287-310 36-39 -0.12 -0.70 120 310
    N40H 1.25-1.28 12.5-12.8 ≥923 ≥11.6 ≥1353 ≥17 302-326 38-41 -0.12 -0.70 120 310
    N42H 1.28-1.32 12.8-13.2 ≥955 ≥12.0 ≥1353 ≥17 318-342 40-43 -0.12 -0.70 120 310
    N45H 1.32-1.36 13.2-13.6 ≥963 ≥12.1 ≥1353 ≥17 342-366 43-46 -0.12 -0.70 120 310
    N48H 1.37-1.43 13.7-14.3 ≥995 ≥12.5 ≥1353 ≥17 366-390 46-49 -0.12 -0.70 120 310
    N35SH 1.17-1.22 11.7-12.2 ≥876 ≥11.0 ≥1592 ≥20 263-287 33-36 -0.11 -0.65 150 320
    N38SH 1.22-1.25 12.2-12.5 ≥907 ≥11.4 ≥1592 ≥20 287-310 36-39 -0.11 -0.65 150 320
    N40SH 1.25-1.28 12.5-12.8 ≥939 ≥11.8 ≥1592 ≥20 302-326 38-41 -0.11 -0.65 150 320
    N42SH 1.28-1.32 12.8-13.2 ≥987 ≥12.4 ≥1592 ≥20 318-342 40-43 -0.11 -0.65 150 320
    N45SH 1.32-1.38 13.2-13.8 ≥1003 ≥12.6 ≥1592 ≥20 342-366 43-46 -0.11 -0.65 150 320
    N28UH 1.04-1.08 10.4-10.8 ≥764 ≥9.6 ≥1990 ≥25 207-231 26-29 -0.11 -0.60 180 330
    N30UH 1.08-1.13 10.8-11.3 ≥812 ≥10.2 ≥1990 ≥25 223-247 28-31 -0.11 -0.60 180 330
    N33UH 1.13-1.17 11.3-11.7 ≥852 ≥10.7 ≥1990 ≥25 247-271 31-34 -0.11 -0.60 180 330
    N35UH 1.17-1.22 11.7-12.2 ≥860 ≥10.8 ≥1990 ≥25 263-287 33-36 -0.11 -0.60 180 330
    N38UH 1.22-1.25 12.2-12.5 ≥876 ≥11.0 ≥1990 ≥25 287-310 36-39 -0.11 -0.60 180 330
    N40UH 1.25-1.28 12.5-12.8 ≥899 ≥11.3 ≥1990 ≥25 302-326 38-41 -0.11 -0.60 180 330
    N42UH 1.28-1.32 12.8-13.2 ≥899 ≥11.3 ≥1990 ≥25 318-342 40-43 -0.11 -0.60 180 330
    N28EH 1.04-1.08 10.4-10.8 ≥780 ≥9.8 ≥2388 ≥30 207-231 26-29 -0.11 -0.55 200 330
    N30EH 1.08-1.13 10.8-11.3 ≥812 ≥10.2 ≥2388 ≥30 223-247 28-31 -0.11 -0.55 200 330
    N33EH 1.13-1.17 11.3-11.7 ≥836 ≥10.5 ≥2388 ≥30 247-271 31-34 -0.11 -0.55 200 330
    N35EH 1.17-1.22 11.7-12.2 ≥876 ≥11.0 ≥2388 ≥30 263-287 33-36 -0.11 -0.55 200 330
    N38EH 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥2388 ≥30 287-310 36-39 -0.11 -0.55 200 330
    N40EH 1.25-1.28 12.5-12.8 ≥899 ≥11.3 ≥2388 ≥30 302-326 38-41 -0.11 -0.55 200 330
    N28AH 1.04-1.08 10.4-10.8 ≥787 ≥9.9 ≥2624 ≥33 207-231 26-29 -0.10 -0.50 230 350
    N30AH 1.08-1.13 10.8-11.3 ≥819 ≥10.3 ≥2624 ≥33 223-247 28-31 -0.10 -0.50 230 350
    N33AH 1.13-1.17 11.3-11.7 ≥843 ≥10.6 ≥2624 ≥33 247-271 31-34 -0.10 -0.50 230 350
    N35AH 1.17-1.22 11.7-12.2 ≥876 ≥11.0 ≥2624 ≥33 263-287 33-36 -0.10 -0.50 230 350
    N38AH 1.22-1.25 12.2-12.5 ≥899 ≥11.3 ≥2624 ≥33 287-310 36-39 -0.10 -0.50 230 350
    *.                  
    *The above-mentioned data of magnetic properties and physical properties are given at room temperature.          
    *\.  
    *The max working temperature of magnet is changeable due to length-diameter ratio, coating thickness and another environment factors.  

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  • SDM Magnetics Co., Ltd. is a leading Chinese manufacturer of high performance permanent magnets and magnetic assemblies with ISO9001: 2008, ISO/TS 16949 and ISO14001 certificates. SDM serves a variety of markets from consumer electronics, industrial automation, automotive, green energy, household appliances, medical, aerospace and telecommunications. SDM's magnets are used in motors, speakers, generators, sensors, compressors, MRI, magnetic chucks and separators etc.

    To meet the more and more demanding markets, SDM has been concentrating on manufacturing technologies for quality stability and cost reduction. Since 2010 the company has been supplying magnets to General Motors' OEM with 0 PPM. With Dysprosium infiltration technology, we are able to offer competitive prices for high grade Neodymium magnets. The company has also built up a strategic cooperation with China's No. 1 rare earth miner CHINALCO, which gives us strong and safe backup for rare earth raw materials.

    SDM Magnetics now manufactures a comprehensive range of magnetic products including:

    Neodymium Iron Boron

    Bonded Magnet

    Samarium Cobalt

    AlNiCo (Aluminum Nickel Cobalt)

    Magnetic Assemblies

    Over the last ten years SDM export 85% of its products to American, European, Asian and African countries. With such wide range of magnetic material options, our professional technicians are available to help solve your magnetic needs and choose the most cost effective material for you.
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Basic Information

  • Industrial Machinery-Transport & Communication Facilities-Motorcycle
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