2017 Sunflower 4412-5

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4610 Model Shown

4610 Model Shown




One Pass Yield Improvement

The 4412 is an exceptional combo primary tillage tool requiring less horsepower per shank than many competitors. The H.D. Auto Reset shanks of the 4412 are positioned between the front and rear disc gangs. The 4412’s “Disc-Ripper-Disc” design reduces the power demands by twenty percent as compared to competitor’s “Disc- Ripper” designs by getting the shanks closer to the tractor. The front disc blades are individually mounted on H.D. C-Flex arms rather than bound to a common gang. Mounting the blades in this manner allows the aggressive posture and performance of a triple compound angled blade. The 4412 gives you finger tip depth adjustment of the disc blades, front and rear to customize the incorporation of crop residue and field finish. The 4412 is available in five or seven shank models. The tools are equipped with Auto-Reset shanks with 3500 pound point load shanks positioned on the frame for maximum residue flow. Working to a depth of eighteen inches the 4412 can shatter deep hardpan and equip it with the H.D. coil tine harrow option to leave the soil nearer to seedbed conditions.

  • Frame: The main frame of the 4412 Series is constructed of 6” x 4” x 3/8” steel tubing and is reinforced in all the high stress areas. Wheel lifts rotate on maintenance-free bearings (UHMW material) and lift tubes are supported by multiple frame members for maximum support. Sunflower pioneered the use of Ultra High Molecular Weight material in the lift system of the SF1433 tandem disc harrow way back in 1994. This material excels in this application because it virtually eliminate friction and wear. Under a microscope it can be seen that the steel tube surface is inlaid with microscopic pores. These pores fill with UHMW material after a few rotations of the lift tube. Once filled the steel surfaces and now simply one UHMW surface rotating on another and wear is virtually eliminated.
  • Shanks: The Auto-Reset shanks have a 3500 lb. trip setting and can trip vertically sixteen inches when an obstruction is encountered. The shank assembly is protected by a shear bolt in the shank mounting. Operators may select from two working ranges with maximum depths of 14 or 18 inches. The deep till parabolic shanks are evenly dispersed on the frame form front to rear providing exceptional material flow though the tool.
  • Individually Mounted Front Blades: Three different angles are combined to create the most aggressive single gang assembly in primary tillage. In this patented equation the gang beam is attached to the frame at twenty-two degrees, the C-Flex bearing arms which hold the blade hubs are formed at eighteen degrees and the blade spindles are set at eight degrees above level. The spindle angle is to counter the heavy draft of the soil and necessary to maintain the position of the blade at the correct angle to effectively size residue and invert soil.   Each blade assembly of the front gang is equipped with a two piece shield. The shields control the flow of material between the blades and through the gang to avoid plugging.
  • Rear Gang Assembly: All gangs are mounted to the main frame with parallel linkages to maintain the blade angle throughout the gang’s range of depth adjustment. The rear gangs are assembled on heavy 1-3/4” alloy steel arbor bolts. Spring steel washer and gang nuts on each end keep the assemblies tight. The staggered and overlapping gang design of the 4412 ensures uniform tillage across the width of the tool and level output. The rear gangs of the larger model fold hydraulically producing a narrow transport.
Finishing Attachments
  • 3 Bar Coil Tine Harrows: These coil tines level the soil and evenly distribute crop residue. The attachment’s spring down pressure and tine angles are easily adjustable. The coil tines are 5/8 inches in diameter and 30 inches long to allow ample room to clear heavy residue.
  • Model: 4412-5
  • Working width ft. in. (m): 12.5 ft. (3.8)
  • Transport width ft. in. (m): 15 ft.-5 in. (4.7)
  • Weight lbs. (kg): 13,615 (6,176)
  • HP requirements: 40 to 50 hp per shank



Working Width
12.5 ft. (3.8 m)
13,615 lb. (6,176 kg)
Recommended HP
40 to 50 hp per shank

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