Stoltz Sales & Service Ltd.

Case IH - Offset Disk Harrows


Case IH Heavy-Offset 790 offset disk harrows perform a wide array of soil-conditioning tasks with tough, long-lasting components. Two models are available, providing a range of disk blade width and spacing options.


Whether you’re deep-tilling crop residue, leveling irrigated fields or incorporating chemicals, Case IH Heavy-Offset 790 disk harrows are ready to tackle tough soil conditions with an array of flexible options.

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
    • Smooth soil surface
    • Allow for uniform chemical incorporation
  • 31x31.5 15 terra rib tires
    • Provide additional flotation
  • Rear hitch
    • Attaches Crumbler® 160 or other soil conditioner


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.

Rugged Construction

All Heavy-Offset 790 disk harrow models are built with:

  • A mainframe of welded steel tubing
  • Square, steel, arbor bolts
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
      • Distribute shock loads along the arbor bolt
  • All bearings are:
    • Regreasable 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
  • 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
    • Adjusts by simply pulling pin and repositioning hitch
Mechanical Depth Control
  • 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

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