Sunflower 6631 Three-Section Vertical Tillage

Features
SUNFLOWER SABER BLADE
This 22-inch-diameter blade has 25 soil-lifting flutes designed with scallops to maintain an effective cutting edge acre after acre. No grinding or rolling is necessary to maintain its edge.
TRUNNION-MOUNTED BEARINGS
The trunnion bearing features triple-lip seals that cannot be damaged by daily greasing and metal washers that protect the seals from being damaged by stocks or material wrapping around the gang shaft. As the C-Flex bearing standards move, the gang bearings constantly realign. There is never any wear between the bearing and the housing, always creating positive lubrication as a result.
C-FLEX BEARING STANDARDS
Sunflower’s trunnion bearings provide positive alignment, eliminate side-loading of the bearings and the housing to ensure positive lubrication. As the C-Flex bearing standards move, the gang bearings have to constantly realign.
SINGLE-POINT DEPTH CONTROL
Single-point depth control is conveniently located at the front of the machine for easy access. Large, easily read markings indicate the direction of movement for adjusting.
FRONT-MOUNTED GAUGE WHEELS
A trademark on all flexible Sunflower tools is front-mounted gauge wheels. This important feature prevents the front gangs of the wing frame from gouging, buckling or cutting deeper than the other gangs, promoting a level, ridge- or furrow-free field. The heavy-duty gauge wheels feature a five-bolt hub and 8x10 ply tire.
HYDRAULIC SELF-LEVELING HITCH
Level the disc frame from front to rear with Sunflower’s hydraulic self-leveling hitch. This positive adjustment maintains a preselected setting regardless of the tillage depth. It features heavy-duty compression springs on each side of the pivot to cushion both front and rear gangs, which is important when crossing ditches or rough terrain.
MAINTENANCE-FREE UHMW
Sunflower 6630s are equipped with maintenance-free lift and wing pivot systems. These systems pivot on UHMW polymer sleeves, eliminating greasing in the lift, wing and gauge wheel pivots.
Specifications
Model | 6631-21 | 6631-24 | 6631-27 | 6631-29 | 6631-31 | 6631-33 | 6631-36 | 6631-35 | 6631-40 |
Working width ft (m) | 20' 2" (6.1) | 22' 7" (6.9) | 26' 3" (8.0) | 28' 8" (8.7) | 30' 0" (9.1) | 32' 6" (9.9) | 34' 9" (10.6) | 32' 7" (9.9) | 37' 5" (11.4) |
Transport width ft (m) | 13' 5" (4.1) | 13' 5" (4.1) | 13' 5" (4.1) | 13' 5" (4.1) | 17' 5" (5.3) | 17' 5" (5.3) | 17' 5" (5.3) | 15' 4" (5.54) | 17' 8" (5.54) |
Transport height ft (m) | 10' 10" (3.3) | 12' 2" (3.7) | 13' 10" (4.2) | 15' 0" (4.6) | 13' 10" (4.2) | 15' 0" (4.6) | 16' 1" (4.9) | 13' 7" (4.1) | 13' 7" (4.1) |
Weight lbs (kg) | 14,405 (6,534) | 15,683 (7,114) | 17,633 (7,998) | 18,705 (8,485) | 19,885 (9,020) | 20,957 (9,506) | 21,986 (9,973) | 24,749 (11,226) | 28,824 (13,075) |
Power requirements | 9 to 11 hp/ft | 9 to 11 hp/ft | 9 to 11 hp/ft | 9 to 11 hp/ft | 9 to 11 hp/ft | 9 to 11 hp/ft | 9 to 11 hp/ft | 9 to 11 hp/ft | 9 to 11 hp/ft |