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R21

R21 Single Wheel Linear Measurement Encoder


 

Features and Options:

  • Accurate linear measurement
  • Integrated mounting arm
  • Economical single measuring wheel
  • Compact size 20
  • "Anti-Jitter" and other material handling features
  • IP66 optional
  • USAMade in the USA

 


 

Product Description

The model R21 is a size 20 encoder that is a compact 2" diameter x 1-7/8" (Ø51mm x 48mm) long optical shaft encoder with an integral mounting arm, compatible with a variety of mounting accessories for installation either above or below a moving web or conveyor. When used with the MW-8 (8.00" circumference) or MW-20 (20.00cm circumference) measuring wheel it can accurately track the web or conveyor to within ±.007" or ±.016cm per revolution. Solid construction and heavy duty bearings make this encoder a great choice for long-term operation in continuous duty applications.

Industry Use

Conveyor Manufacturers Printing and Labeling Custom Machine Builders Packaging
Material Handling      

Product Documentation

Additional Information

View FileDatasheet
View FileDrawings

Output Types
Counts per Revolution Options
Anti-Jitter Option
Supply Voltage Options
Output Circuits

Modified Versions

Modification Description  
M203 Environmentally sealed - IP66 View FileDatasheet
M265 R21 with shortened mounting handle View FileDatasheet

For our programmable Wheel model, please see our R21-P Programmable Wheel Encoder.