Screening bucket to be fitted on mini and midi excavators. The screening is done through a hydraulic screening assembly with rotating knives in HB 400. Suitable for the selection of materials from demolition or digging in general and for the mixing of terrains with peat. The thickness of the selected material ranges from 0 to 20 or 0 to 35 in a standard configuration. Under request it is also possible to build shafts according to the requirements of the user.