Introducing the new CMC patent pending YieldMax Combo, Row Cleaner and Closing system.
Equipped with the new CMC patent pending EverReadyBearing which can withstand extreme abuse and last 50% longer than regular stock bearings.
YieldMax Combo
Latest Prototype
Final Units in Production
Achieve Higher Yields with Smooth Row Cleaning & Supreme Seed Trench Closing
A row cleaner that is years ahead of competition with the inherent design of the patent pending anhedral angle arms which improves efficiency and yield with Conventional-Till, Minimum-Till, No-Till and High-Speed Planting.
No requirement of air lines, air supply system, hydraulic lines or expensive cab mounted control unit.
The Only No-Till System that Handles Heavy Residue, Wet Fields & Any Soil Condition
Hundreds of YieldMax Combos have been pre-ordered by Farm Equipment Dealers in the US after seeing the design and talking with Walter Carroll, inventor and owner of CMC Agri.
Reserve Now so You Have The System in Place for Your Next Planting.
Contact Us Today Before Our Limited Run Production is Sold Out.
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The YieldMax Combo Includes both the YieldMax Cleaner and YieldMax Closer or they can be purchased separately
This unique system can go from conventional till to high speed with its new trailing wheel design, with an ability to convert from dry, high residue soil to wet conditions in just minutes per row. Upfront, the coulter and tiger paw row cleaning wheels can be removed and go into wet conditions by switching to the CMC slicer wheel. In the rear for dry conditions, the wide rubber tire used in sealing moisture in the seed area can be switched in minutes to the narrow, taller tire, which resists wet conditions. It virtually will not plug under any field conditions.
No More Plugging
Handles Wet and Dry Fields
Reduces Fuel & Power Needs
Quick-Change Setup
Better Seed Emergence
No Air or Hydraulic Cylinders Needed
Designed for Optimal Moisture Retention and
Seed Germination, even when used under Severe Conditions
Soil & Field Conditions
Our Tiger Paw Cleaning Wheels eliminate plugging by clearing residue after cutting, not before, reducing drag and stress.- Handles thick corn stalks, wheat stubble, and cover crops with a unique, pivoting arm design that adjusts automatically.
- Uses spring pressure instead of air or hydraulic systems, reducing unnecessary downforce and soil compression.
- Custom closing wheels are designed to seal trenches properly, preventing air pockets and ensuring uniform germination.
- Wider closing wheels help retain moisture while preventing excess water accumulation, ensuring optimal seedbed conditions.
- Quickly switch between wide or narrow rubber tires or no tires at all to match clay, gumbo, loam, or sandy soils.
- Our system handles ruts, uneven ground, and heavy crop residue, ensuring consistent seed placement every time.
Performance & Functionality
- Can adapt into high-speed planting without plugging or loss of row integrity.
- The quick-change design allows farmers to switch between wet and dry conditions in minutes per row.
- Built with hardened steel, corrosion-resistant bearings, and rugged rubber wheels to withstand extreme field conditions.
- Residue is cut first, then cleared—preventing drag, plugging, and uneven clearing.
- Sharp, high-quality coulters cut residue efficiently with minimal power requirements.
- Independent, pivoting row cleaners ensure consistent depth and even emergence.
- Self-adjusting closing wheels improve trench sealing and prevent seed exposure.
- Uses spring pressure for depth control - no extra hydraulic systems are required.
A Patent Pending Closing System that is Years Ahead of the Competition
Cost & ROI
- The fuel, labor, and yield improvements offset the initial cost within one or two planting seasons.
- The patent pending anhedral arm design reduces horsepower demand, meaning less fuel used per acre.
- Uses only one bearing type in 13 areas, making maintenance simple and cost-effective.
- High demand for efficient no-till systems ensures strong resale value. Built for durability and long-term use.
Maintenance & Usability
Designed with fewer moving parts and standardized bearings, reducing repair needs.- Uses one bearing type across 13 points, all the same part number, simplifying replacements and upkeep.
- Swap to the CMC Slicer Wheel in minutes for mud and wet soil conditions.
- Quick-change components let you adjust for different soil conditions in minutes.
- Compatible with corn, soybeans and more - versatile across planting seasons.
Excels at Normal Planting Speeds of 4-5 mph and Continues to Improve as Speeds get Higher at 8-10 mph
Knowledge & Experience
Simple, intuitive setup with step-by-step guides and videos coming soon.- U.S.-based support team ready to assist by phone or email.
- Customizable setup for different regions - works in dry, wet, cold, and hot climates.
- Designed to enhance soil health over time while maintaining or increasing yields from season one.
Unequaled Versatility for Different Planting Methods
Environmental & Sustainability
- Works seamlessly with cover crops and herbicide programs to suppress weeds.
- Helps increase beneficial soil microbes, reducing soil-borne diseases and pest pressure.
- Handles high-residue cover crops without plugging or residue buildup.
- Proven to increase organic matter while reducing fuel emissions and soil erosion.
Competitor & Brand Trust
- The YieldMax System from CMC Agri is the only self contained compact unit to cut then clear residue after cutting - not before, preventing plugging.
- Requires less fuel, labor, and soil disturbance compared to strip-till methods.
- 100% designed, engineered, and built in the USA.
The YieldMax Combo Will Save You Time, Money and Increase Your Yield
Previous Prototypes
Walter Carroll has been building, testing and refining the design of his
No-Till System for 40 years and he's finally perfected it and now producing it.
The Combo
Best At Conventional Farming Speeds
- No Till With Coulter
- CMC Tiger Paw row Cleaning wheels
- Plant in High Residue & Dry Conditions
The Closer
Different Size Tires For Planting In Different Conditions/Soil Types
- Multiple Planting Conditions - Dry, Clay, Gumbo or Sandy Loam Soil Types
- Easily Change Tires
The Cleaner
Best Row Cleaning & Closing High Speed • No Till Planting Attachment
- Save Time, Fuel, & Moisture
- One Pass Planting, No Need To Prep and Clean Field for Planting
- Preseason Sale Until March 31st, 2025