Alain, I like it. So, you put your material in the mixer, but your small screen on, run it for a few minutes until you stop getting material passing through the screen, tilt it back up, change the screen to the next larger size, empty the wheel barrow, tilt it up and run, repeat for each size that you want. Slick. How many size grades are you splitting in to? dust/fines, 3mm, 5mm, 10mm?
John