This machine is used for unloading trailers with a rear tipper. It is constructed on a stable welded steel frame with profiled metal sheet finishing. The hopper has two pneumatic wheels and a detachable shaft for non-distant transport by means of a forklift or a tractor. Main rubber belt width 120 cm/170 cm with dogs. Infinitely variable belt adjustment in the range 0.5 m-4.5 m/minute allows for adjusting the machine efficiency to other machines in a technological line. Containers have 7 screening rollers (in 3-belt versions – they have additional 7 sorting rollers). Screening and sorting rollers with the width of 190 cm in standard coil rubber or PU rollers with possible infinitely invariable gap adjustment.