If your goal is to size and incorporate residue in the top 4-5" of top soil while leaving the soil level enough for a single-pass tool in the spring, the Great Plains Turbo-Chisel® is the tool of choice!
Great Plains’ exclusive 22" Turbo Coulters on 7-1/2" spacing start the process by slicing residue. The 22" blades run on a 1-3/4" gang bolt with cast spools, putting the weight “in the gang” for outstanding performance and reliability. The gang bearings are field-proven 211 rubber-mounted bearings with cast housings mounted to our heavy-duty 1" x 3" C-shank standards. The coulter bar is hydraulically adjustable for on-the-go depth control, offering the flexibility to till up to 12" deep.
Models available include rigid-frame units with 7-15 shanks or folding-frame units with 9-23 shanks -- all with a recommended horsepower requirement of 30 hp per shank. Units can be equipped with either standard chisel shanks throughout, or a combination of toggle trip parabolic shanks on the front row, followed by either parabolic chisel shanks or standard chisel shanks. The heavy-duty toggle trip shank is designed to run 1-1/2" deeper than the chisel shanks on the rear bar and trips at 2,450 lbs. Rear attachment options include the choice of a “buster bar” to level and smooth the ground or our Great Plains chopper wheels to crumble clods while firming the soil.
There are other coulter chisels available on the market… but there is only one Turbo-Chisel!