Series of machines specialized in the soil preparation and grass/pruning shredding, powered by a hydraulic orbital motor and connectable to excavators, off-road forklifts, loaders by customized linkages. These machines are, rotary tillers, power harrows, stone buriers and shredders up to 200 cm working width. Basic machine: Hydraulic orbital engine, Lateral transmission driven by chain in oil bath, Automatic chain tensioner on spring, 4x Spade blades per flange, Wearing steel protection counter-flanges, Working depth adjustable by crank handle, Rear selector rake mounted on lateral springs, Requested oil capacity 80-90 l/min, Maximum pressure 180 bar.