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:
Nodular Iron Spools
Unlike steel-fabricated spools on other brands, Case IH cast nodular iron spools:
High-Capacity Bearings
Flangent and Cushion Gang® bearings feature:
All bearings are:
Easy Gang Adjustments
Self-Leveling Hitch
Self-leveling hitch
Spring-cushioned hitch
Convenient dial
Mechanical Depth Control
Mechanical depth control
Pin-type adjustment
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.
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:
Model | Heavy-Offset 790 All-purpose, Rigid |
Disk harrow type, Tandem or Offset | Offset |
Folding (Multi-Section) or Non-Folding | Non-Folding |
Dimensions and Weights | |
Working width, minimum,ft-in (m) | 11' 5" (3.48) |
Working width, maximum, ft-in (m) | 19' 9" (6.02) |
Transport width, minimum, ft-in (m) | 13' 0" (3.96) |
Transport width, maximum, ft-in (m) | 22' 7" (6.88) |
Transport height, minimum, ft-in (m) | np |
Transport height, maximum, ft-in (m) | np |
Total weight, minimum, lb (kg) | 8,000 (3629) |
Total weight, maximum, lb (kg) | 10,800 (4900) |
Sizes available, number of widths | 4 |
Disk Blades | |
Disk blade spacing, in (mm) | 10.5 (267) |
Disk blade diameter, in (mm) | 28 (711) |
Disk blade thickness, in (mm) | 0.256 or 0.315 (6.5 or 8) |
Blade edge profile | Notched |
Optional blade edge profile | Smooth |
Blade concavity | np |
Disk Gang Mounting and Angles | |
Gang mounting to frame | Fixed |
Frame left to right flexibility, rigid or flexible | Rigid |
Front gang angle, degrees | 34 to 46 included angle |
Rear gang angle, degrees | 34 to 46 included angle |
Disk Gang Components | |
Disk bearings | Self-aligning, cartridge type ball bearings |
Gang arbor bolts, in (mm) | 1.5 (38) square carbon steel |
Disk spool diameter, in (mm) | 6 (152) |
Disk blade scraper, type | Spring type, adjustable |
Wheels and Tires | |
Transport wheel mounting | Two sets of side-by-side tires with axles on rockshaft wheel arms |
Transport tires | 12.5L x 15FI |
Optional transport tires | 31-13.5 x 15 terra rib |
Wing wheel mounting | No wing wheels |
Wing tires | No wing wheels |
Hitch | |
Hookup to tractor, mounted or pull-type | Pull - Type |
Depth and Level Adjustment | |
Typical operating depth, in (mm) | 11.2 (284) |
Depth control | Mechanical std / Hydraulic opt |
Fore/aft leveling | Turnbuckle with locking pin |
Tractor Power Requirements | |
Required power, hp/ft (kw/m) | 12 to 17 (29 to 42) |
Sales Literature | |
Literature Number | CIH2020405 |
Literature Date | 2/1/2004 |
Other Documentation | |
Document Number | SP-3041-08 |
Document Date | 8/1/2008 |
Status and Entry Dates | |
Manufacturing status | Current |
First Entry Date | 1/1/2009 |
Revision Date | 7/1/2011 |