The intensity of the vibration depends on the design of the knife drive. Rotating imbalance wobble heads and short Pitman-arm drives tend to shake pretty hard. Other drives like the New Holland 451/456 Pitmanless parallel drive shake less (also shown on the Rowse website. It helps when the cutter is attached to the large mass of a tractor - the shaking is not as noticeable from the seat.I had a walk behind sickle bar mower for awhile... Before it shook itself to an untimely death, and almost took me with it!
Do these 3 PH sickle bars have counter rotating shafts, or some way to cancel the vibration? They're great for rocky areas, as the glide right over, but I'd never deal with another unless some system was employed to control the vibration.
Wow that's exactly what I want! Excellent job!
How difficult to modify for the vertical cut and add the cylinder?
Builder, I may be wrong but it looks like the JD has a pitman arm and it may not work in the vertical or below grade position. Just be sure to check before you buy. The AC looks like it work from a gearbox so it should be OK for your needs.