The new 1700 series offset disc harrows take weight and strength dimensions to a new level.
Featuring large diameter full concavity blades and some of the highest weights per foot of cut in the industry, the 1700 series is designed to penetrate packed soils, as well as the thickly matted crop residue that comes with today’s high-yielding, genetically modified crop varieties.
Equipped with rigid or spring-cushioned gangs - with 5/16” thick plain or notched disc blades, available in 28” or 30”diameters.
The blade spacings are 11” or 13” depending on the model, and all the gangs are supported by 1 15/16” gang shafts.
Available in cutting widths from 11’ to 24’ 11”.
• Self-Leveling all Welded Frame
• 11 or 13 inch blade spacing
• 28 or 30 in disc blades
• Plain or Notched disc blades
• Rigid or Spring Cushion Disc Gang Assemblies
• 12.5L x 15 Tires
• Multiple Finishing Attachments
• Models from 11’ to 24’ 11”
Staggered Overlapping Disc Gangs
With the exception of the 1300, 1700 and 1800 series, every Sunflower disc features staggered overlapping disc gangs - one of the keys to level discing. The overlapped placement of the front gangs cuts all of the ground cleanly while the staggered rear gangs throw the soil back in a criss-cross pattern. This arrangement eliminates the need for a chisel shank or bulk buster typically required in the center and behind the front gangs of conventional tandems. Even more importantly - the Sunflower combination eliminates ridging in the center - another problem common with conventional tandem discs. Sunflower also makes sure the tires are placed close to the hinge line on the center section and the outside of each wing. This assures the disc will perform properly, without gouging, in rough or terraced ground. Some manufactures save money by simply extending the gang bars on the wings to make the next large size. This leaves the wing wheels too far inside and they cannot control the wings in rough or terraced ground.
- Featured on all except: 1300, 1700 & 1800 series disc
Trunnion Mounted Bearings
Sunflower's trunnion bearings provide positive alignment, eliminate wear between the bearings and the housing and ensure positive lubrication. As the C-Flex™ bearing standards move, the gang bearings have to constantly realign. On conventional bearing systems the bearing moves within the housing. This eventually leads to wear between the bearing and the housing... then bearing failure, because grease cannot get into the bearing. With the trunnion bearing there is never any wear between the bearing and the housing and there is always positive lubrication. 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.
- Featured on all except: 1700 & 1800 series disc
C-Flex™ Bearing Standards
Standard equipment on every Sunflower disc, the C-Flex™ bearing standards absorb disc gang shock created by stumps, rocks and normal discing. This extends the bearing, spool and disc blade life. A bonus feature is the C-Flex's™ ability to clear residue better than conventional rigid standards. The C-Flex™ bearing standards also allow for easy maintenance of the disc gang assembly. Just remove one bolt and loosen another bolt at each C-Flex™ location and the entire gang can be dropped. All C-Flex™ standards remain in place to assure the gang will be in the correct position when replaced. Unlike competitive machines the scraper bars are mounted to the back of the C-Flex™ Standards. This allows the scrapers to react with the gang and not come into contact with the spools or blades.
- Featured on all except: 1700 & 1800 series disc
Spring Cushion Gang Assembly
The entire gang assembly pivots upwards when an obstruction is encountered. The heavy coil springs compress allowing the gang assembly to pass over the obstruction then expands to return the gangs to their working position.
- Optional on 1700 & 1800 series
Rigid Gang Assembly
Standard equipment on 1700 & 1800 series
Level the disc frame from front to rear with Sunflower's unique self-leveling hitch. This positive adjustment maintains a pre-selected 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, important when crossing ditches or rough terrain. Some disc models offer optional hydraulic adjustment.
Front-mounted Gauge Wheels
A trademark on all flexible Sunflower discs 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 5-bolt hub and 8.00 x 10 ply tire.
- Featured on all winged units except 1700 & 1800 series
RG = Rigid gang, SCG = Spring cushion gang
Note: Specifications may vary based on tires, hydraulic system, attachments or other possible variances.