Q: Can you please share the bore, stroke, rod and port size for the cylinder 78RN-OB-20-E?

A: The bore is 1.125″. More information can be found on the air requirements – http://www.columbiamt.com/CMT-Impact-Marking/Air-Requirements.html

The stroke length is 2″ – CMT suggests a wokring stroke length of 1.94″.

The Rod wil hold (1) CM7X round insert. THis insert has a diameter of 1/4″.

The ports are 1/4″ NPT for the advance, and 1/8″ NPT for the retract.

The R-rear mount model is not available with the E-option. The E-option is the return position sensor as shown in the picture. The only mounting option is the F-foot mount also as shown in the picture.

If you would like a quote, or if you have additional questions, please e-mail quotes@columbiamt.com.