Unmatched Ruggedness, Dependability and Performance
Case IH Heavy-Offset 790 disk harrows are engineered to provide consistent performance over years of use. Featuring durability-enhancing design, adjustibility to fit varying conditions and self-sharpening Earth Metal® blades.
Designed for Durability
The Case IH Heavy-Offset disk harrows is designed to handle even the toughest conditions. Built with welded steel tubing, nodular iron spools, high-capacity bearings and a self leveling hitch.
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:
Self-Leveling Hitch
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. Earth metal blades:
Simple Setup and Adjustment
Adjusting the various settings on the Heavy-Offset 790 is easy, allowing you to respond to varying soil conditions and spend more time in the field.
Easy Gang Adjustments
Mechanical Depth Control
Options For Varied Conditions
All Heavy-Offset 790 disk harrows come with the following options:
Other Adjustments
Efficient Seedbed Preparation
The Case IH Crumbler® allows for one pass tillage and seedbed preparation. The Crumbler breaks up clods, knocks soil off roots and smoothes soil after primary tillage.
Proven Performance
The Crumbler® 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:
Heavy-Duty Construction
The Crumbler® 160 is constructed with rough terrain and varied soil conditions in mind.
Unique Features
Other unique features of the Crumbler® 160 include:
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 |