Campbell mounted roller is meant for seedbed preparation. It is connected to the front three-point hitch of a tractor in order to prepare the soil for sowing. By default, it is equipped with cast iron wheels diameter 800mm, hardness GGG50. Big mass, diameter and the angle of cutting let the particularly hard soils to be crushed into smaller bits and let the surface levels of soil to be densened. It prevents the water from vaporizing and gives better crops in return.