Abstract: A sorting and/or conveying system and relevant working plants wherein there are used a set of carriages preferably automatically tilting, dragged along a pre-determined path, there being provided a preferably tubular guide with a longitudinal opening, on the inside of which there glide a certain number of spindles or the like, worked, through proper openings made along the guide, by one or more driving wheels linked to the power plant, to some of these spindles there being fastened the supports of the carriages.