Industrial Automation » Feedback Devices

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Used physitemp

  • Customized Thermocouples

    Customized Thermocouples

    • Manufacturer: Physitemp

    Model: Specification: Product Description: Physitemp Instruments provides high precision OEM thermocouple probe assemblies to many prominent medical device manufacturers, thereby enabling temperature monitoring a...

    Shanghai, China
  • T-Type Thermocouple Wire

    T-Type Thermocouple Wire

    • Manufacturer: Shanghai Jingxin Industrial Development

    Model: Specifications: Most thermocouple wires used in the manufacture of sensors are "specially restricted" wires and meet NIST standards and must be accurate to 0.5°C over a range of 0-50°C. This means that eve...

    Shanghai, China
  • Custom Thermocouples

    Custom Thermocouples

    • Manufacturer: Physitemp Instruments

    Physitemp Instruments provides high accuracy OEM thermocouple probe assemblies to many prestigious medical manufacturers who incorporate temperature monitoring into their products.

    Shanghai, China
  • Type T Thermocouple Wire

    Type T Thermocouple Wire

    • Manufacturer: Thunderscience (Shanghai)

    0.1°C accuracy in the following sizes: 30ga, 36ga, 40ga, 44ga Most thermocouple wire used in the manufacture of sensors is "Special Limits" wire which, to meet NIST standards, must be accurate to 0.5°C in the ran...

    Shanghai, 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.