A very heavy duty model designed for working in large acreage. This model allows to reach elevated working depth and special screening system safely separates and places the stones picked up from the soil underneath the seed bed; fine soil remains on top. 4 Models are available following the working width: 250-300-350-400 cm. Standard equipment: 1000 rpm gearbox, automatic chain stretcher, slip clutch drive, 6 blades per flange (helicoidal) protection steel screen for stones, universal 3 point hitch cat. 2nd and 3rd and levelling bar. Available mesh and packer roller.