N33SH Neodymium Rare Earth Segment Magnet

/N33SH Neodymium Rare Earth Segment Magnet
  • N33SH Neodymium Rare Earth Segment Magnet
  • Sintered Neodymium Arc permanent magnets for motor
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  • N33SH Neodymium Rare Earth Segment Magnet, High Temperature Resistant NdFeB Magnets, Nickel Plated Powerful Rare Earth Neodymium Segment High Temperature Magnet, High-performance Sintered Neodymium Arc permanent magnet for rotor motor and wind turbine

    N33SH Neodymium Rare Earth Segment Magnet Features:

    Part No.: NSGN33SH-52
    Dimensions:  Required Confidentiality  CUSTOMER SUPPLY DRAWING
    Shape: Arc / Segment
    Grade: N33SH
    Thickness: 6mm
    Plating: Ni-Cu-Ni ( Nickel )
    Material: NdFeB
    Fixing: Araldite/Loctite
    Magnetization Direction: North on outside face
    Max. Operating Temperature: 150 °C

    Applications of Neodymium Magnets
    Magnetic separators
    Linear actuators
    Microphone assemblies
    Servo motors
    DC motors (automotive starters)
    Computer rigid disc drives, printers and speakers

    Tolerances
    For as-pressed material, tolerance on the thickness (direction of magnetization) is +/– .005”. Other dimensions are +/– 2.5% or +/– .005”, whichever is greater.
    According to International Magnetics Association/Magnet Materials Producers Association (IMA/MMPA) standards, visual imperfections such as hairline cracks, porosity and minor chips are commonly found in sintered magnets. A chipped edge is considered acceptable if no more than 10% of the surface is missing. Cracks are acceptable as long as they do not extend across more than 50% of the pole’s surface.

    Attributes of Neodymium Material
    Very high resistance to demagnetization
    High energy for size
    Good in ambient temperature
    Moderately priced
    Material is corrosive and should be coated for long term maximum energy output
    Low working temperature for heat applications, but higher levels of heat resistance materials are being introduced periodically

    Machining
    Since neodymium magnet material is prone to chipping and cracking, it does not lend itself to conventional machining methods. However, neodymium can be abrasively ground, but only with the use of liberal amounts of coolant. The coolant minimizes heat fracturing and the risk of fires caused by oxidized grinding dust. N35UH Segment NdFeB High Temperature Resistant Magnets

    Magnetizing and Handling
    Neodymium magnets are very brittle and very strong magnetically. Therefore, it is crucial to handle these magnets with extreme care to avoid personal injury and damage to the magnets. Fingers can be severely pinched between attracting magnets. Magnets can chip if allowed to “jump at” an attracting object. It is highly recommended that when constructing rare earth magnetic assemblies, they be magnetized after assembly.

    Motor Magnets / Rare earth magnets are mostly used in motor, such as permanent magnet D.C. motors, wound field D.C. motors, gear motors, custom D.C. motors. generator or electric motor; electrical machinery.
    Segment magnets are of the largest quantity we made now. arc magnets are also the most popular motor magnets.
    This paper analyzes the Direct Torque Control ( DTC) theory of PMSM.
    We measure the temperature of the motor.
    The back EMF constant and torque constant are analyzed. The calculating formulas are gived.
    This paper introduces a multi-motor control system of the electric cleaner.
    In this thesis, how to design a brushless DC motor control chip is discussed in detail.
    Intelligent drive motor control system and intelligent charging control system.

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