(The working principle of these machines is based on the counter rotating vertical rotor with tines, capable crumbling bigger clumps and excellent levelling the working surface.) This machines work with vertical counter rotating tines, which allow to crumble big clumps and prepare a very well levelled seeding surface. The vertical rotating axis guarantees an excellent soil ventilation while (at the same time) maintaining its natural composition and structure. Various types of rear rollers or accessories allow to adjust the working depth and the making of multiple finishing of the seeding bed, both on flat surface and on bed shape. All the power harrows produced by Forigo are designed to ensure long-lasting work performances with low power consumption. The series is composed by fixed and folding machines suitable for every type of tractor.