Shredder-mixer-distributor trailer, particularly for cylindrical and prism-shaped bales of forage, hay and grass silage

A shredder-mixer-distributor trailer comprising an elongated box-like container defining lateral walls, a bottom, front and rear portions, said box-like container longitudinally accommodating lower and upper rotating scrolls, said lower scrolls being arranged mutually close and conveying material towards the front portion of said container, said upper scrolls being spaced apart from each other and transporting material in an opposite direction with respect to said lower scrolls, wherein said lower scrolls define a spiral with a substantially constant height, at least one vertical baffle being interposed between said lower scrolls, said upper scrolls having a variable-height spiral with portions extending along opposite directions, said container longitudinally accommodating wedge-like elements for adjusting material feed to said lower scrolls and avoiding accumulation of material towards the walls of the box-like container, and toothed-blade elements for improving shredding and keeping said scrolls clean, said container comprising a loading bucket integrated in said rear portion and at least one front unloading door.