6631 Vertical Tillage System Adds Models
Sunflower introduces seven new models to the 6631 series vertical tillage system. The new models offer cutting widths from 20 feet 5 inches to 34 feet 9 inches and join the two previous models at 32 feet 7 inches and 37 feet 5 inches.
The 6631 series combines Sunflower’s Saber Blade disc blades and effective offset disc gang design that slices through heavy Bt corn residue. The Saber Blades feature an innovative edge that is fluted the full cutting depth of the blade, designed to stay sharp. The 22-inch low-concavity blades are set at an 18-degree gang angle on 7 ½ inch spacing to cut and mix residue with the right amount of soil to start the decomposition process.
“The primary purpose of vertical tillage is to cut and size tough crop residue, then mix it into the very topmost soil to help the residue start to break down,” explains Larry Kuster, Sunflower. “The blade design and gang angle of the Sunflower 6631 tools offer effective cutting and mixing action for residue breakdown but also tie residue to the soil and create a surface that resists wind and erosion.”
The new three-section models offer 22 degrees of wing flex, 10 up and 12 down, to hug uneven fields. In addition, frames ride on heavy-duty walking tandems that float over uneven field surfaces, maintaining consistent depth and tillage action from the front to rear. A heavy-duty A-frame tongue design offers two-position drawbar adjustment to match the tractor drawbar height for level operation and fuel efficiency.
Sunflower engineers lengthened the frame to enhance the tool’s ability to cut through and size heavy residue without plugging. Three finishing reel options are available: 11-inch flat-bar reel, 14-inch flat-bar reel, or 14-inch chevron reel.
Prices for the 6631 vertical tillage tools range from $55,250 to $99,329.