The Gates Coulter Disk 12000 Series

The most adjustable, most effective, most productive residue management and seed bed preparation tool on the market. Fall or spring, this tool performs! The Gates Coulter Disk hydraulically adjusts from vertical tillage to conventional disk tillage. With the touch of a button on the Dynamic Adapt tablet, precisely vary the disk gang aggressiveness from 0 to 15 degrees. Adapt this implement to your residue and soil types to achieve optimum agronomic conditions for the next crop.

The Gates Coulter disk provides an unmatched value with excellent field performance in wet or dry conditions, travel speeds from 6 to 10 mph, plus implement sizes from 24 to 56 ft. The 12000 series offers 12” blade spacing (6” overall), individual blade hubs, along with your choice of Ingersoll Soil Rebel ™ or Soil Razor ™ blades in 22” or 24” diameter.


Corn Spring tillage starts in the fall. With the toughness of today’s BT corn and multi-stacked varieties, the Coulter Disk can chop and mix the residue with soil to provide better and faster decomposition. Do a pass or two in the fall, and then one in the spring to prepare the perfect seedbed.

Soybeans & Peas Make a fall pass on ground with tough residue, and use the hydraulic gangs to smoothen the ruts left by combines, grain carts and trucks.

Sunflowers Get your seeder going earlier and jumpstart the planting season by a couple weeks with the Coulter Disk. Use it to open up and dry the ground, as well as size tough sunflower stalks.

Wheat & Small Grains Is heavy straw causing your soil to dry out too slowly in the spring? Speed up the process with the Coulter Disk. Use the adjustable gangs to move as much dirt as you want, so you can dry the ground and reduce hairpinning when seeding.


  • Independent Front and Rear Disk Gang Adjustment Customize your tillage results with 0- to 15-degree gang angle adjustment. Adjust on-the-go from your tractor seat with infinitely variable hydraulic adjustment, or opt for the manual adjustment bars at 0, 5, 10 or 15 degrees.
  • Urethane Torsion Arms Keep the blades engaged in the ground while floating over rocks and obstacles. The 12 urethane dampeners in each arm allow the Coulter Disk to pull easily while reducing shock and vibration.
  • Plug-Free Blades Never again leave the cab to unplug the blades. Even in extremely wet conditions, they will keep turning and give you excellent residue sizing. The Gates private-label, boron-enriched notched blades provide extreme toughness and long life.
  • Rocking Axle The wide-spread oscillating transport and wing axles provide excellent floatation. They won’t ridge dirt on tight turns, and they’ll easily handle steep road shoulders.
  • Fast Operating Speeds Runs faster and requires less horsepower than conventional disks, so you burn less fuel and finish the field faster.
  • Rear Hitch Options Prepare an excellent seedbed by pulling a crumbler or coil packer via the optional rear hitch.
  • Rolling Baskets Add optional rolling baskets along with a two-bar harrow for your spring seedbed preparation.


Standard FeaturesSpecifications
Available Widths24′ – 56′
Frame4″ x 6″ tubing. Up to 1/2 wall
Blade SpacingAvailable in 12″ or 9″ space to achieve 6″ or 4.5″ at the rear
Blades22″ Soil Rebels
Gang MountingRubber torsion arms (2 coulter blades per arm)
Wheel Hubs8000lb wing hubs and 12000lb transport hubs
TiresTransport tires 445/70 R225. Wing tires 385/65 R225
Gang Angle AdjustHydraulic operation up to 15 degree angle
Power RequirementsApproximate engine HP requirement 8 to 12 HP per foot


SizeTransport HeightTransport Width
5618′21′ (Only available in 12″ blade space)


SizeNo AttachmentsW/ 2 bar Harrows onlyWith Baskets onlyW/ Harrow and Baskets

Optional Equipment

  • 2, 3, or 4 bar Harrow attachment with 5/8″ diameter tines.
  • Carbide wear tips on harrow tines.
  • Rolling Baskets
  • DAC – Dynamic Adjust Control.
  • Rear tow hitch.