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Used positioning module in China

  • Trusted Seller
    139554-01 | Bently Nevada LVDT

    139554-01 | Bently Nevada LVDT Position I/O Module

    • Manufacturer: Bently Nevada

    Bently Nevada 139554-01 LVDT Position I/O Module Dimensions: 15.2 cm x 2.4 cm x 5.6 cm | Weight: 0.2 kg | Mfr. part number: 139554-01 | Part number/catalog no.: 139554-01

    Fujian, China
  • Trusted Seller
    LYA210A | Hitachi thermocouple analog

    LYA210A | Hitachi thermocouple analog input module

    • Manufacturer: Hitachi

    Hitachi LYA210A thermocouple analog input module Operation Temperature -40℃ ~ 70℃ UL Temperature -20℃ ~ 60℃ Storage Temperature -40℃ ~ 85℃ Relative Humidity 5% ~ 90% Non-condensing Operating Altitude 2,000m Mount...

    Fujian, China
  • no-image_en.png

    EPRO PR6423/013-130 CON021 Eddy Current Signal Converter

    • Manufacturer: EPRO

    The EPRO PR6423/013-130 genuine module is meticulously engineered to deliver plug-and-play compatibility with complex industrial control systems, making it a staple component for critical machinery monitoring and...

    Xiamen, China

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.