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Used gem

  • GEMS,PS76-30-4MNZ-C,PRESSURE SWITCH NOS

    GEMS,PS76-30-4MNZ-C,PRESSURE SWITCH NOS

    • Manufacturer: Gems

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $45 USD
    Galion, OH
  • Trusted Seller
    GEMS Flow Switch Paddle Type,

    GEMS Flow Switch Paddle Type, FS-550 Series P/N 29609 Transamerica Delaval

    • Manufacturer: Gems

    GEMS Flow-Switch Paddle Type, FS-550 Series P/N 29609. By Transamerica Delaval This is the paddle type switch. Thanks for looking I usually list items for a 2 day shipping window but I can usually get items ou...

    $149 USD
    Hillsville, VA
  • RED LION CONTROLS GEM42100 Preset-able

    RED LION CONTROLS GEM42100 Preset-able Counter 2C

    • Manufacturer: Red Lion Controls

    Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost parts at decent wholesale prices. Buy with confidence. Money back guarantee. We repair all types of industrial automation including AC S...

    $1,710 USD
    Duncan, SC
  • Gems 2200CG3F008A3UA Pressure Transducer 2200

    Gems 2200CG3F008A3UA Pressure Transducer 2200 Series

    • Manufacturer: Gems

    Gems 2200CG3F008A3UA Pressure Transducer in good condition, pulled from a working system. ALL QUESTIONS AND OFFERS WELCOME #'s on item: 2200CG3F008A3UA F055519 0086

    $169 USD
    Fayette, AL
  • Trusted Seller
    Custom Control Sensors 610GEM1244S Pressure

    Custom Control Sensors 610GEM1244S Pressure Switch 1000PSIG Proof 5A 28VDC Used

    • Manufacturer: Custom Control Sensors, Inc.

    Custom Control Sensors Pressure Switch Brand: Custom Control Sensors Quantity: 1 Condition: New in box Model: 610GEM1244S Proof: 1000 PSIG Electrical Rating: 5A, 28 VDC Increase By: 45 PSIG Decrease By: 35 PSIG

    $275 USD
    Belgium, WI

Overview

Feedback devices are sensors and transducers—encoders, resolvers, tachometers and position sensors—used on crawler loaders and heavy equipment to provide real-time data on position, speed and direction. They enable precise control of hydraulics, drive systems and automation, and support diagnostics and safety functions. Buyers choose based on resolution, environmental rating (IP), electrical interface (analog, digital, CAN), mounting, shaft size and compatibility with the machine’s controller.

FAQ

How do I ensure a feedback device is compatible with my crawler loader?

Match electrical interface (voltage, signal type, CAN), mechanical mounting, shaft diameter, resolution and connector pinout to your controller. Provide the OEM part number or controller specs to the seller and ask for a datasheet.

What should I check when buying a used feedback device?

Inspect for shaft play, corrosion, water ingress, damaged connectors and seals. Request recent test reports, output waveform checks and serial numbers. Verify calibration history and spare-part availability.

How should feedback devices be shipped to avoid damage?

Pack with shaft caps, anti-static wrap, desiccant and vibration-damping material inside a sturdy crate. Label fragile, insure the shipment and include a parts list and datasheet for customs if shipping internationally.

What maintenance and calibration do feedback devices need?

Routine checks include visual inspection, connector cleaning, seal integrity and output testing. Calibrate after repairs, impacts or annually depending on usage. Replace bearings, seals or the unit if accuracy degrades.