Cartridge-type Permanent Magnetic Couplings in Real Industrial Applications Performance

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  • 2025-07-16 at 5:08 pm #6949
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      Cartridge type permanent magnetic coupling with the advantages of high efficiency and energy saving, strong impact resistance, low maintenance cost, and adapting to complex environments, is widely used in fans, pumps, metallurgy, chemical industry, and other high load or high vibration scenarios.

      Core performance:

      1. High efficiency and energy saving

      • Non-contact transmission, efficiency up to 98%-99%, much higher than the fluid coupling (85%-90%).

      • Variable load scenarios (e.g. fans, pumps) power saving rate of 20%-40%.

      • Cases:

      • Shagang Group dust removal fan retrofit power savings of 41%, annual savings of 800,000 yuan.

      • A power plant boiler fan than frequency conversion speed control power savings of 12.5%.

      2. Offset load resistance and vibration isolation

      • Allows radial offset (5%-10% of diameter) and axial offset (5-10mm) and isolates more than 90% of vibration.

      • Case: Belt conveyor vibration in cement industry reduced by 60%, bearing life extended by 3-5 times.

      3. Overload protection

      • Magnetic field slippage during sudden load change to avoid equipment damage.

      • Case: Metallurgical mill overload shutdown from 10 times a month to 1-2 times.

      4. High environmental adaptability

      • Fully sealed design (IP65), resistant to dust and corrosion, no lubrication required.

      • Case: Chemical centrifugal pump annual maintenance costs reduced by 90%.

      Typical applications:

      Industry Equipment Advantage Effect
      Electric power Boiler fan Speed control energy saving 1.2 million kWh per year
      Metallurgy Rolling mill Impact resistance Failure rate reduced by 70%, saving 500,000 per year
      Cement Belt conveyor Vibration isolation Extend the life of the equipment by 3 years
      Chemical Centrifugal pump Corrosion resistance Zero leakage operation for 2 years

      Limitations:

      1. High initial cost (40% of permanent magnet material), but lower full life cycle cost.

      2. High temperature (>150℃) magnetic performance degradation, need heat dissipation design.

      3. Single power limited to 5000kW, ultra-high power needs to be customized.

      Summarize:

      Cartridge type permanent magnetic couplings are gradually replacing traditional couplings and expanding to wind power, municipal and other fields due to the advantages of high efficiency, energy saving, stability and durability.

      http://www.magicmag-tech.com
      SHANGHAI GAOLV E&M Technology Co.,Ltd.

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