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Combine Concaves

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    It’s Back! The Original RPR Concave System with the #1 Goal, Affordability. Do you operate a farm under 1,000 acres? Do you primarily only harvest corn and soybeans?

    estes rpr concaves


    Yes, the RPR® Concave technology was designed and patented by CM Welding, Don Estes, in 2012

    Yes, the IP and technology is also licensed to Copperhead Concaves Systems, LLC as of July 2018.*

    john deere concaves

    • Budget Friendly 
    • 90 Degree Notch Patented (Pacman) Bar
    • Progressively Open Bar Spacing
    • Adjustable Cover Plates
    • Reduce Rotor Loss
    • Designed for All Crops



    Specify Your Combine Make & Model In Order Notes at Checkout (Models Below)



    Order RPR Concaves

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