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Used electronics in China

  • Trusted Seller
    Control Valve With Pneumatic Actuator

    Control Valve With Pneumatic Actuator Flowserve Positioner 520MD With Stock Pneumatic Valve Positioner

    • Manufacturer: Samson

    Products Description flowserve positioner 520MD pneumatic valve positioner with lot of stock The Logix 520MD+ digital positioners have three levels of diagnostics, “Standard”, “Advanced”, and “Pro”. * “Standard” ...

    Zhoukou, China
  • Trusted Seller
    TZIDC-200 V18348-10161310110 | ABB Digital

    TZIDC-200 V18348-10161310110 | ABB Digital Positioner

    • Manufacturer: ABB

    ABB TZIDC-200 V18348-10161310110 Digital Positioner ABB TZIDC-200 V18348-10161310110 Digital Positioner The TZIDC-200 is an electronically configurable positioner withcommunication capabilities designed for mount...

    Fujian, China
  • Trusted Seller
    8256-016 | Woodward EPG Rotary

    8256-016 | Woodward EPG Rotary Actuator

    • Manufacturer: Woodward
    • Model: EPG

    Woodward 8256-016 EPG Rotary Actuator Woodward 8256-016 EPG Rotary Actuator The 512/524 and 1712/1724 EPGs are three-component governing systems for 12 or 24 Vdc operation. All EPG systems include an actuator, an...

    Fujian, China
  • Fuji Electric AH165-TLG11E3 Green Pushbutton

    Fuji Electric AH165-TLG11E3 Green Pushbutton Switch

    • Manufacturer: Fuji Electric

    FUJI AH165-TLG11E3 switch Green pushbutton command switch FUJI AH165-TLG11E3 24VDC LED switch Fuji AH165-TLG11E3 pushbutton switch Oil-tight (IP65) Green, LED Rectangular Button Fuji Illuminated switch Fuji Elect...

    Suzhou, China
  • EMT Series Basic Type Multi-Turn

    EMT Series Basic Type Multi-Turn Electric Actuator

      A multi-turn electric actuator is an actuator that can rotate more than 360 degrees. The EMT series of multi-turn electric actuators is designed for use with multi-turn or linear motor valves, such as gate valves...

      Shanghai, China
    • EMD Series Basic Type Multi-Turn

      EMD Series Basic Type Multi-Turn Electric Actuator

        The multi-turn electric actuator is an actuator with an output angle greater than 360°. EMD series multi-turn electric actuators are designed for multi-turn or linear motor valves such as gate valves, globe valve...

        Shanghai, China
      • EMD Series Integration Type Multi-Turn

        EMD Series Integration Type Multi-Turn Electric Actuator

          A multi-turn electric actuator is a type of actuator that can rotate beyond 360 degrees. The EMD series of multi-turn electric actuators are specifically designed for use with multi-turn or linear motor valves, s...

          Shanghai, China
        • EMD Series Intelligent Type Multi-Turn

          EMD Series Intelligent Type Multi-Turn Electric Actuator

            A multi-turn electric actuator is an actuator that is capable of rotating beyond 360 degrees. The EMD series of multi-turn electric actuators are specifically designed for use with multi-turn or linear motor valv...

            Shanghai, China
          • EMT Series Integration Type Multi-Turn

            EMT Series Integration Type Multi-Turn Electric Actuator

              An electric actuator that can rotate beyond 360 degrees is known as a multi-turn electric actuator. The EMT series of multi-turn electric actuators is designed specifically for use with multi-turn or linear motor...

              Shanghai, China

            Overview

            Electric actuators convert electrical energy into controlled linear or rotary motion for valves, attachments, and position control. In crawler loaders they provide precise blade tilt, quick coupler actuation, and attachment control with options for stroke length, force rating, and feedback. Choose sealed, high-IP units with suitable voltage, duty cycle, and feedback (encoder/potentiometer/CAN) to survive dirt, vibration and heavy cyclical loads in construction environments.

            FAQ

            What should I consider when buying an electric actuator for a crawler loader?

            Match force (thrust/torque), stroke or rotation, mounting pattern, voltage and control signal type, duty cycle, IP rating, and feedback options. Verify mechanical fit, load capacity, and thermal limits for continuous operation.

            How can I test a used actuator before purchase?

            Power it with the correct voltage, verify full stroke/rotation under a representative load, check feedback signals, inspect seals and wiring, and listen for grinding or excessive noise.

            How should an actuator be shipped to avoid damage?

            Secure shaft and moving parts, drain fluids if required, protect connectors and wiring, crate or palletize with vibration padding, and insure the shipment. Use carriers experienced with heavy equipment parts.

            What maintenance does an electric actuator need on a crawler loader?

            Regularly inspect seals, connectors and mounting bolts, keep electrical contacts clean, check feedback calibration, and follow manufacturer lubrication intervals. Replace worn seals or brushes promptly.

            How long do electric actuators typically last and what are failure signs?

            Lifespan depends on duty cycle and environment; heavy-use units last several thousand to tens of thousands of cycles. Watch for slow movement, loss of holding force, erratic feedback, overheating, noise or fluid leaks.