Skimming units Apus are designed for cultivating fields after harvesting. They are intended for use on lighter soils. The machine is equipped with duck foot shares, which cut the stubble in the surface layer, and the cooperating spring tooth harrow equalizes the surface and purges leftovers. The tooth spacing of 33.5 cm and the height under the frame of 65 cm ensure smooth operation on fields with plant debris, and the screw fuse protects against damage when moving over an obstacle. In this version, the cultivator is also equipped with support wheels, which set the depth of teeth up to 15 cm. However, the working depth of the spring tooth harrow depends on the height of its setting relative to the teeth.