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Used optical table

  • Accurate Absolute Optical Angle Encoder

    Accurate Absolute Optical Angle Encoder With Shaft 20mm

    • Manufacturer: Sino

    Detail Information: Place of origin: Guangzhou, CHINA | Certification: CE,RoHS | Minimum order quantity: 1 set | Packaging details: Carton | Payment terms: T/T, L/C | Supply ability: 3000 sets per month | Item na...

    Guangzhou, China
  • IP54 Hollow 20mm Optical Angle

    IP54 Hollow 20mm Optical Angle Encoder Incremental Measuring

    • Manufacturer: Sino

    Model AD series high end angle encoders are characterized in particular by very high system accuracy in the global market.This sealed angle encoder adopts the working principle of optical scanning and two types o...

    Guangzhou, China
  • Bearing Less 80mm Optical Angle

    Bearing Less 80mm Optical Angle Encoder Absolute Rotary Encoder

    • Manufacturer: Sino

    Model AD series sealed angle encoder adopts the working principle of optical scanning and two types of measuring methods:incremental and the incremental measurement method, the equidistant grating specifications ...

    Guangzhou, China
  • Hollow Through 35mm Optical Angle

    Hollow Through 35mm Optical Angle Encoder Absolute Angular Encoders

    • Manufacturer: Sino

    The term angle encoder is typically used to describe encoders that have an accuracy from ± 5” to± 10” and a line count above 5000.Angle encoders of choice when angle measurement in accuracy of a few seconds is re...

    Guangzhou, China
  • Diameter 55mm Optical Angle Encoder

    Diameter 55mm Optical Angle Encoder Incremental Hollow Encoder Sensor

    • Manufacturer: Sino

    AD series high end angle encoders are characterized in particular by very high system accuracy in the global market.Due to the need to use the bearing structure of the user's shaft system in measuring, there are ...

    Guangzhou, China
  • Hollow Shaft 60mm Incremental Optical

    Hollow Shaft 60mm Incremental Optical Angle Encoder For Robotic Arms

    • Manufacturer: Sino

    Detail Information: Place of origin: Guangzhou, CHINA | Certification: CE,RoHS | Minimum order quantity: 1 set | Packaging details: Carton | Payment terms: T/T, L/C | Supply ability: 3000 sets per month | Item na...

    Guangzhou, China
  • 1 Vpp Optical Angle Encoder

    1 Vpp Optical Angle Encoder Hollow Shaft 100mm Incremental

    • Manufacturer: Sino

    Detail Information: Place of origin: Guangzhou, CHINA | Certification: CE,RoHS | Minimum order quantity: 1 set | Packaging details: Carton | Payment terms: T/T, L/C | Supply ability: 3000 sets per month | Item na...

    Guangzhou, China
  • 18000 Lines Incremental Optical Angle

    18000 Lines Incremental Optical Angle Encoder Hollow Through Shaft 35mm

    • Manufacturer: Sino

    Detail Information: Place of origin: Guangzhou, CHINA | Certification: CE,RoHS | Minimum order quantity: 1 set | Packaging details: Carton | Payment terms: T/T, L/C | Supply ability: 3000 sets per month | Item na...

    Guangzhou, China
  • 18000 Lines Optical Angle Encoder

    18000 Lines Optical Angle Encoder Hollow Shaft 35mm Exposed Type

    • Manufacturer: Sino

    Model AD series sealed angle encoder adopts the working principle of optical scanning and two types of measuring methods: incremental and absolute. In the incremental measurement method the equidistant grating sp...

    Guangzhou, China
  • Hollow Shaft 80mm Rotary Incremental

    Hollow Shaft 80mm Rotary Incremental Optical Angle Encoder 36000 Lines

    • Manufacturer: Sino

    Model: AD-80KB System Accuracy:±5" Hollow shaft diameters:80mm Applications: Detail Information:

    Guangzhou, China
  • Sealed Incremental Optical Angle Encoder

    Sealed Incremental Optical Angle Encoder With 20mm Shaft Hole Diameter

    • Manufacturer: Sino

    The term angle encoder is typically used to describe encoders that have an accuracy from ± 5” to± 10” and a line count above 5000.Angle encoders of choice when angle measurement in accuracy of a few seconds is re...

    Guangzhou, China
  • 28 Bits Optical Angle Encoder

    28 Bits Optical Angle Encoder Sealed Absolute AD-60MA-C28 RoHS

    • Manufacturer: Sino

    CE Optical Angle Encoder Sealed Absolute Angle Encoders AD-60MA-C28 RoHS Angle encoder usually refers to an encoder with an accuracy within ±5''~10'' and a line count higher than 5000. Angle encoders are used for...

    Guangzhou, China
  • 25bits Hollow Shaft 20mm Rotary

    25bits Hollow Shaft 20mm Rotary Angle Encoder Accuracy ±5 Absolute Encoders

    • Manufacturer: Sino

    Model AD series sealed angle encoder adopts the working principle of optical scanning and two types of measuring methods:incremental and is good choice for limited installation space,also effective-cost since the...

    Guangzhou, China
  • 110V OEM Magnetic Incremental Encoder

    110V OEM Magnetic Incremental Encoder , 25VA Linear And Rotary Encoders

    • Manufacturer: Sino

    SINO Grating Ruler Electronic Rulers angle encoder Product images Questions & Answer 1, What are the length 100mm, 150mm, 200mm, ... 3000mm represent for ? Answer : All these length mean table travel length ( tab...

    Guangzhou, China
  • High Accuracy Absolute Encoders 29bits

    High Accuracy Absolute Encoders 29bits PPR Hollow Shaft 100mm

    • Manufacturer: Sino

    Detail Information: Place of origin: Guangzhou, CHINA | Certification: CE,RoHS | Minimum order quantity: 1 set | Packaging details: Carton | Payment terms: T/T, L/C | Supply ability: 3000 sets per month | Item na...

    Guangzhou, China
12

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.