CASE IH 3000 Series Corn Heads

The Calmer upgrade kit solves many
of the mechanical problems with the
CASE IH 3000 series corn heads.
The kit enables your corn head to perform
better than new and at a fraction of the cost
of a new or chopping corn head.
100% satisfaction guaranteed!

Patented Engagement Window

Through the integration of multi-length blades,
Calmer Stalk Rolls have a patented “open window”
feeding chamber, which guarantees the efficient
flow of cornstalks into the CASE 3000 row unit to
become processed into “confetti-like” pieces
by 20 razor-sharp blades.

Multi-Zone Beveled Stripper Plates

Our patented stripper plates have a wider
front opening to help prevent the bulldozing
of cornstalks when slightly off the row. The
beveled stripping area emulates the bottom
portion of the corn ear to help reduce
butt shelling problems and trash intake.

sprockets and gathering chains

Calmer’s larger 9-tooth idler sprockets improve
the gathering chain lugs grabbing and conveying
ability in all crop conditions. longer-lasting
chrome-pin gathering chains and 7-tooth
drive sprockets are sent with all calmer kits.

CASE IH 3000

Upgrade Kit Explained

Join Marion as he explains the Calmer BT Chopper® Upgrade Kit for CASE IH 3000 corn heads. The farmers who have installed the Calmer system note that the rebuilt head performs better than a new head! The agronomic advantages such as improved soil health, reduced nitrogen penalty and higher yields are additional advantages you can expect. At the bottom of the page is a calculator that shows how much you can save when using the Calmer system!

We guarantee your satisfaction or your money back!

Compatibile with CASE IH Corn Head Models:

3206 – 3208 – 3212 – 3406 – 3408 – 3412


follow our recommended steps for maximum performance

Step 1



Reliable stalk rolls are critical to a top-performing CASE 3000 corn head. That’s why Calmer invented the BT Chopper® Stalk Rolls for Case IH row units. Calmer offers  the only roll in the industry with a patented “open window” feeding chamber for the superior feeding and processing of stalks in all crop conditions.  You will immediately notice the difference in performance from the  combine cab!

The 10 razor-sharp knives on each stalk roll cut, chop and shear cornstalks into confetti-like pieces for accelerated decomposition which you can see in these slow motion videos. As a benefit, you’ll be able to reduce a management pass across the field, improve your planting experience and increase yields.



multi zone beveled stripper plates from calmer features

“[I’m] bragging on Calmer BT Chopper Rolls like a new Case IH. The beveled plates really work good. Bought the head with bad rolls, put Calmer’s on and we just love it!”

Jeff Stahly

Lake Park, IA


CASE IH 3000 plates

Reduce Butt Shelling and

Decrease  “Trash” Into Combine

Calmer’s Patented Multi-Zone Beveled Stripper Plates have a wider front opening that helps minimize the bulldozing of cornstalks when not fully aligned with the row. This wider retrieving area is manufactured flat to reduce ear wedging problems and beveled in the back stripping area to allow the stalk rolls to engage the ear shanks, leaves and husks, which significantly reduces trash intake into the combine. The patented beveled edge mimics the rounded bottom of the corn ear to reduce kernel loss by displacing the energy around the base of the corn ear.

Calmer’s Transition Plate is designed specifically for Calmer Stripper Plates to prevent the bunching up of material at the top of the stripping tunnel. 



gathering Chains and Sprockets 

“One of the best investments I ever made!”

– Ronald Kottke
Walnut Grove, MN

Calmer’s larger 9-Tooth Idler Sprockets improve the chains’ grabbing and conveying of material in all crop conditions and allow for a standard-size gathering chain to be used. This new-and-improved non-greaseable idler sprocket is solid-steel and has a replaceable bearing for increased life and lower maintenance. Longer-lasting Chrome-Pin Gathering Chains and 7-Tooth Idler Sprockets are shipped with all Calmer Kits.

Big picture Economics

Follow along with George as he explains his thought process behind the economics of updating an older corn head with Calmer parts. According to him, his cost of ownership for  rebuilding his corn head with Calmer Stalk Rolls and Residue Management Parts at only a $1 per acre! 

Complete the ROI plan to see how



 No Feeding Chamber

No stalk roll will perform properly without a feeding chamber in the entry area. All factory CASE IH stalk rolls have the same length flutes and therefore a continuous overlap in the entry area. Overlapping flutes create a wall of rotating steel that results in blocking the the entry of cornstalks. Similarly, stalks may bend forward as they attempt to become processed.

This mechanically-flawed design results in premature wear in the first few inches of the stalk roll, while the remaining length of the blades stay in “like new” condition since stalks cannot travel further up the row unit.

CASE IH stalk roll design problems

Cornstalks cannot enter the row unit to become engaged with factory CASE rolls due to the continuous overlap in entry area.


Patented “Open window” Feeding Chamber

Through in integration of multi-length blades, the Calmer BT Chopper® Stalk Roll is the only stalk roll on the market with a patented “open window” feeding chamber, which enables cornstalks to travel efficiently into the row unit to become processed.

This design performs in all crop conditions from green to dried and cracking. The wear bar guarantees traction on stalks for pulling the ear down and leaving stalk confetti on the ground under the row unit.  Cumulative results include: longer stalk roll life, reduced low ear snap, and superior engagement in down or damaged stalks.



 Limited Residue-to-Soil Contact

Stalk rolls for Case 3000 series corn heads have an overlap in the entry area which prevents cornstalks from fully engaging with the knives to be managed. Therefore, very little is done to the cornstalks for a smooth planting season in the spring. 

Failing to properly process cornstalks into small pieces prevents residue-to-soil contact, leading to the immobilization of important nutrients on the soil surface, slower degradation rates and leaves a wet mattress of residue in the spring.


Cornstalks failed to enter the knife chamber, resulting in little residue-to-soil contact and slow decomposition rates.


10 intermeshing Razor-sharp blades

 Superior Residue-to-Soil-Contact

During rotation, the shortened flutes on the Calmer BT Chopper are timed to create 2, 4-inch feeding chambers for an efficient handoff of the stalk into the 17 1/2-inch knife chamber to be processed.

In the knife chamber, 20 intermeshing, razor-sharp blades cut, chop, and shear cornstalks into confetti-like pieces. The way the Calmer BT Chopper® exposes the pith of the stalk and places the residue strategically over the row result in superior residue-to-soil contact, accelerated decomposition, easier planting and higher yields!

Cornstalks are easily engaged and processed for superior residue-to-soil contact and rapid decomposition..



Factory Case IH 3000 stripper plates are not formed to match the natural shape of the bottom side of the corn ear which causes kernel loss upon impact by displacing all the energy on one kernel. (see image below)

As shown in the image below, the additional welded bar along the edge of these plates is problematic because it protrudes above the plate’s edge, causing additional kernel loss.

This design also fails to allow the ear shank to get close enough to the rolls to become processed.  This results in the husk staying attached to the ear and sends it and more material other than grain (MOG) into the combine.

Straight stripper plates don’t emulate the bottom portion of the corn ear, increasing butt shelling and trash intake.


Patented Multi-Zone Beveled Stripper Plates

Calmer’s Patented Multi-Zone Beveled Stripper Plates are flat in the front retrieving area to reduce ear wedging and beveled in the stripping area to allow the stalk rolls to engage more ear shanks, husks, and leaves, and to reduce trash intake into the combine

The patented bevel matches the rounded butt of the corn ear. This does a better job at displacing the energy that contributes to butt shelling by pushing the kernels toward the cob.

These beveled stripper plates have a weld hardened surface for extended life. 


Calmer’s patented bevel minimizes kernel loss and trash intake cleaner harvesting..

Get MORE than you bargained for this fall with Calmer's BT Choppers® and Residue Management Upgrade Kits

With Calmer Upgrade Kits, you're getting more than just corn head parts, you're getting peace of mind that your residue management and corn head problems are solved for good during harvest. 


Agronomic and Mechanical Advantages

Mechanical Advantages

    • Compatible with all Tillage Systems
    • 25% Less Hp Needed than with Chopping Heads
    • Superior Cornstalk Flow to Engagement
    • Better Ear Separation
    • Less Tire Wear
    • Less Butt Shelling
    • Increased Harvesting Speeds (Achieved through a combination of installing Calmer® products and proper combine settings)
    • Lower Spread Load

Agronomic Advantages

    • Unmatched Residue Decomposition
    • Warmer Soils
    • Drier Soils
    • Increased Earthworm Populations
    • Reduced Nitrogen Penalty
    • Easier Planting
    • Higher Yields
dave hula reccomends calmer stalk rolls

Still not convinced?

Look at the Benefits on The Ground

Between the testimonials and scientific studies, the message is clear: residue is value returning to the soil. Maximize its worth by managing it with calmer stalk rolls.