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Adjust your corn head angle for an efficient harvest and to maximize the performance and life of your stalk rolls.

Settings Head Angle for Standing Corn

FOR STANDING CORN: 23-25 degrees is the ideal angle of the corn head in standing corn. Within this range, the angular presentation of the stalk rolls enables the stalk to be pulled down vertically to become full processed at the head. At the same time, this angle also allows the stalk to travel horizontally in the row unit so that the ear is separated from the stalk further into the row unit
TO CHECK THE ANGLE: park the combine on a level surface and lower the header until the lowest point of the row unit is 2 inches above the ground. Place a protractor on the stripper plate and read the angle.  We supply a magnetic protractor with all of our stalk roll kits so your investment will last as long as possible.  Improperly angled heads will show premature wear in the stalk rolls at the very front.

For down corn: Flatten the corn head angle a few degrees in down corn conditions, making gravity less of an enemy. We recommend harvesting at approx. 20 degrees. 

Combine settings & Refinements
For Corn Harvest

Click any item to watch the video of Marion talking through each combine tip

Sieve Settings for Corn

Our most watched video on YouTube. Harvest with the bottom sieve wide open! Watch the discussion here.

Corn Head Angle

The right angle of attack improves wear life and effectiveness of the stalk rolls. Park the combine on a level surface and lower the header until the lowest point of the row unit is approx. 2-inches above the ground. Place a protractor on the plates to measure the angle. Try to achieve 23-25 degrees in standing corn. 

Gathering Chain Speed

Begin calibration with initial gathering chain speed of 55 RPM.  If you are seeing butt shelling, slow down the corn head until it starts to bulldoze cornstalks then speed back up until bulldozing stops.

Cross Auger Adjustment

Fine tune your cross auger to prevent ear slicing and cracked grain. Adjust vertically to have 1 3/4-inches of clearance between flighting and the tray. 

Stripper Plate Gap

Pull a stalk from the field to test your stripper plate gap. Ensure the stripper plates are wider than the the third cornstalk node from the brace root. Watch our video for full settings. 

Feeder House Chain

During your pre-harvest maintenance routine, adjust the feeder chain to maximum length and as close as possible to the cross auger. Run at maximum speed to reduce the potential of ears piling up during the handoff from the corn head to the feeder house. 

Rotor Speed

Increase your combine's rotor speed until you can see the first cracked kernel in the grain tank then reduce speed by 10RPM.

Fan Speed
in Corn

Increase fan speed until the red chaff and pieces of broken leaves are no longer showing up in the grain tank.

Case IH
Transport Vanes

Adjust transport vanes to the slow position (bottom of the vanes to the back of the combine). This will reduce kernel loss from the rotor area. 

Click any of the links below to access the full list of videos and combine tips! 

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