Rare Earth SmCo Countersunk Segment Magnet

/Rare Earth SmCo Countersunk Segment Magnet
  • Rare Earth SmCo Countersunk Segment Magnet
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  • Rare Earth SmCo Countersunk Segment Magnet, Samarium Cobalt Segment Tile Magnet For Motors, Extremely strong rare earth magnets material, Samarium Cobalt magnets SmCo with Countersink Hole, Powerful Permanent generator rotor magnet, segment magnets China supplier

    Rare Earth SmCo Countersunk Segment Magnet with Countersink Hole YXG-24H Item No. MPCO-SMOS  series
    Customzied Specific Requirements
    OEM or ODM service: Accept
    Dimension: Customized size
    Custom Grade: SmCo5,  Sm2Co17
    Magnetization direction: Thickness, Length, Axially, Diametre, Radially, Multipolar
    Surface Treatment: UNCOATED, Silver, Gold, Zinc, Ni-cu-Ni. Epoxy etc.
    Tolerance: +/-0.02 – 0.05mm
    Application: SmCo rare earth permanent magnets are widely applied in Auto, energy-efficient Motors and Generators, Machinery, Audio/Video and Communication Equipment, Medical Device(MRI), Office Automation, Magnetic Separator, etc.

    As part of the rare earth group of permanent magnets, samarium cobalt(SmCo) magnets have very high magnetic properties and temperature properties. Their Curie temperature can be as high as 710 to 880℃, maximum working temperature can be 250 to 350℃, so this kind of magnets have the best magnetic stability. They include rare earth Sm1Co5 and Sm2Co17 and are referred to as 1:5 and 2:17 materials. There’re three different manufacturing processes: sintered SmCo magnet, bonded SmCo magnet, and injection molding SmCo magnet.

    Sintered Samarium Cobalt rare earth magnets are extremely resistant to demagnetization and can operate at temperatures up to 500°F (260°C). There are many Samarium Cobalt grades which can withstand higher temperatures, but several factors will dictate the overall performance of the Samarium Cobalt rare earth magnet. One of the most pertinent variables is the geometry of the magnet or magnetic circuit. Samarium Cobalt magnets, which are relatively thin compared to their pole cross-section (Magnetic Length / Pole Area), will demagnetize easier than Samarium Cobalt magnets which are thick. Magnetic geometries utilizing backing plates, yokes, or return path structures will respond better to increased temperatures. The maximum recommended operating temperatures listed on the Samarium Cobalt magnetic characteristics page do not take into account all geometry conditions. Please contact a MPCO team member for Samarium Cobalt rare earth magnet design assistance when elevated temperatures are involved in your application.

    Samarium Cobalt Segment SmCo with Countersink Hole

    Samarium Cobalt Segment SmCo with Countersink Hole

    Applications Of Samarium Cobalt Magnets
    Computer disc drives and sensors
    Traveling wave tubes
    Linear actuators and satellite systems
    Motors where temporary stability is vital

    Attributes Of Samarium Cobalt Material
    High resistance to demagnetization
    High energy (magnetic strength is strong for its size)
    Good to moderately high temperature stability
    Pricing for samarium cobalt is market sensitive

    Manufacturing – In general, the elements are melted together and milled into a powder that is dry-pressed to shape in the presence of a magnetic field. The material is then sintered, aged, ground to dimension, magnetized and tested. They are called “rare earth” magnets because the elements of samarium cobalt are classified as such in the lanthanides section of the Periodic Table of the Elements. Arc Shape Rare Earth Sintered SmCo Magnet with Countersunk Hole

    Samarium Cobalt Segment Tile Countersunk Magnet For Motors

    Samarium Cobalt Segment Tile Countersunk Magnet For Motors

    Typical Magnetic and Physical Properties of Samarium Cobalt

    Samarium Cobalt Material Density Max. Energy Product
    BH (max)
    Typical Residual Induction Br (max) Coercive Force Hc (min) Intrinsic Coercive Force (Hci) Maximum Operating Temperature Curie Temperature
      lbs/in3 g/cm3 MGO Gauss Oersteds Oersteds
    SmCo 18 0.296 8.2 16 – 18 8700 ≥8100 ≥16000 482 250 1382 750
    SmCo 20 0.296 8.2 19 – 21 9200 ≥8500 ≥16000 482 250 1382 750
    SmCo 22 0.299 8.3 20 – 22 9500 ≥8900 ≥16000 482 250 1382 750
    SmCo 24 0.304 8.4 22 – 24 9900 ≥9100 ≥18000 662 350 1508 820
    SmCo 26 0.304 8.4 24 – 26 10400 ≥9400 ≥18000 662 350 1508 820
    SmCo 28 0.303 8.4 26 – 28 10700 ≥9500 ≥18000 662 350 1508 820
    SmCo 30 0.303 8.4 28 – 30 11000 ≥9900 ≥18000 662 350 1508 820
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