Heavy-Offset Disk Harrows


Case IH Heavy-Offset disk harrows perform an array of soil-conditioning tasks with tough, long-lasting components. Our offset disk harrows can be custom equipped with three disk blade sizes and spacing configurations to easily deep-till stalks and stubble, bury brush and level irrigated fields. Bringing you optional Working Widths from 11' 1" - 27' 2", Transport Widths from 11' 1" - 22' 7", with 28" - 32" Disk Blade Diameter and 10.5" or 12" Disk Blade Spacing.


  • Heavy-Offset 790- All-Purpose heavy offset disk harrow, with 10.5 - 12 inch blade spacing and 28 - 32 inch blades, comes as an all-purpose offset or plowing disk to perform a wide array of soil-conditioning tasks.
  • INNOVATIVE DESIGN: Case IH Heavy-Offset 790 disk harrows feature state-of-the-art engineering and construction. The machines offer unmatched ruggedness, dependability and consistent performance over years of use. All models are built with:

  • A mainframe of welded steel tubing
  • Square, steel, arbor bolts
  • Nodular iron spools
  • High-capacity bearings
  • Easy gang adjustments
  • Self-leveling hitch
  • Mechanical depth control
  • Nodular Iron Spools- Unlike steel-fabricated spools on other brands, Case IH cast nodular iron spools:

  • Resist compression up to 20 tons without loosening blades
  • Add greater blade support with bell-shaped design
  • Provide better residue flow with hourglass middle
  • High-Capacity Bearings- Flangent and Cushion Gang bearings feature:

  • Finely ground inner rings
  • Heavy steel sleeves that distribute shock loads along the arbor bolt
  • All bearings are-

  • Greasable for extended life
  • Triple sealed to repel debris and moisture
  • Easy Gang Adjustments- Gang angle: Adjustable from 34 – 46 degrees; Adjusts without tools.

  • Rear gangs: Adjust laterally to changing field conditions; Line up with front gang furrows as desired
  • Easy-turning crank; Fine-tunes front-to-rear leveling
  • Self-Leveling Hitch-

  • Exclusive to the Heavy-Offset 790 disk harrows
  • Keeps gangs working at uniform depth from front to rear
  • Transfers weight between tractor and disk
  • Allows even soil penetration on hills
  • Spring-cushioned hitch- Helps ease blades over obstructions

    Convenient dial- Centers disk behind tractor

  • Minimizes draft
  • Proven Case IH deep, parabolic shanks with patented Tiger Points.
  • Adjusts by simply pulling pin and re-positioning hitch
  • Mechanical Depth Control- Provides accurate, repeatable depth

    Pin-type adjustment- Makes depth control convenient, quick and reliable

  • Eliminates risk of hydraulic leakage affecting disk depths
  • Repeatable accuracy
  • Earth Metal Blades for Exceptional Endurance- All Case IH Heavy-Offset 790 disk harrows are equipped with Earth Metal blades. Uniquely formed and heat treated, Earth Metal blades offer exceptional endurance and break resistance for longer equipment life. The notched blades aggressively cut residue and vegetation with excellent cut uniformity.

    Self-Sharpening- Earth Metal blades actually resharpen as they wear.

  • Provides superior cutting performance over an extended blade life
  • Helps prevent down time and maintenance labor
  • Lowers blade replacement cost
  • The performance of Earth Metal blades actually improves as they are used, while conventional blades lose their sharpness with wear.
  • Long-Life Durability- Compared to conventional blades under identical conditions, Earth Metal blades:

  • Are 30% stronger
  • Last up to 20% longer
  • Resist stress fractures
  • Feature shallow-concavity design for easier pulling than conical or spherical blades and promotes better fuel economy.
  • FLEXIBLE OPTIONS: Flexible Options to Tackle Tough Soil Conditions with Simple Set Up and Adjustment

  • Easy-to-adjust leveling turnbuckle; optional hydraulic leveling
  • One-step lateral pin adjustment for tongue placement maintains draft compliance
  • Positive mechanical depth control with stop collars; optional single-point hydraulic control
  • Transport lock U-channels and rear chain attaching points
  • Options for Varied Conditions- All Heavy-Offset 790 disk harrows come with the following options:

  • Furrow fillers for smooth soil surface and to allow for uniform chemical incorporation
  • 31x31.5;15 Terra rib tires provide additional flotation
  • Rear hitch to attach Crumbler​ 160 or other soil conditioner​
  • Crumbler 160 Seedbed Conditioner- The Crumber breaks up clods, knocks soil off crown roots and smooths soil after primary tillage; saves time, fuel and tractor engine hours; and promotes higher yields by creating more ideal seedbed conditions. Performance research shows that the Crumbler 160 works in the fall to provide high-quality seedbed conditions by:

  • Reducing clod size by up to 46%
  • Creating smoother valleys by up to 45%
  • Improving fall seedbed levelness by up to 55%
  • Reducing air pockets in tilled soil
  • The Crumbler 160 consistently exerts approximately 160 lbs/ft (240 kg/m) of ground pressure.
  • Heavy-Duty Construction- The Crumbler ​160 is constructed with rough terrain and varied soil conditions in mind.

  • Mainframe and wings constructed of 6 x 4 in (152 x 102 mm) steel tubing
  • 16 in (41 cm) diameter reels with 10 1 in. (25 mm) diameter solid bars
  • 3,000 psi (211 kg/cu cm) hydraulic cylinders and hoses with ISO couplers
  • 9.5L x 15 eight-ply, tubeless-rim implement tires
  • Replaceable hubs and spindles
  • Large, heavy bearings
  • Rigidly mounted reels
  • Available in 15, 17.5, 20, 22.5 and 25 ft (4.6, 5.3, 6.1, 6.9 and 7.6 m) widths. The four larger models fold to a narrow 13.5 ft (4.1 m) transfer width.
  • Unique Features- Other unique features of the Crumbler​ 160 include:

  • A pull frame with telescoping tongue that easily attaches to the rear hitch on primary tillage machines
  • Warning and tail lights
  • An SMV emblem
  • A safety chain
  • A parking stand​
  • Click Here to download a brochure.

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  • Contact B&S Enterprises your local expert to learn more, compare specs or schedule a demo.
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