The rotary hiller GF intensively cultivates the soil while destroying annoying clods. The soil becomes loose and can be used for ridge forming and makes up the basis for a good growth. Furthermore, these rotary hillers can be converted to full width cultivators with a few manual adjustments prior to planting. The drive is designed for a tractor output up to 500 HP. Incl. a hydraulically foldable frame to keep the machine within the allowed transport width.