Caron Screening Company’s Model 70 screen plant is a maintenance-free worker! The Model 70 is a self-contained unit and can be set up for use in a matter of minutes. It handles materials such as gravel, loam, mulch, bark, or shale. In ideal weather condition, it is possible to screen 50 to 71 yards per hour. The screen plant can be used with a skid steer, tractor, small backhoe, or two-yard loader.