The Fibertech-S finishing line is designed for the sanding of individual pieces: beads, window frames or doors, square structures of all types; unfinished products, veneered or painted items. The innovative and patented system of cross-cutting via rotary discs of the product fibers, ensures a perfect cut of the same, a result impossible to obtain with traditional systems. This system prevents lifting after the application of water- based primers or other wood preservatives, almost always avoiding the intermediate sanding normally required with traditional sanding systems, thus resulting in significant time-saving and above all preventing the removal of an important part of the previously applied product. The Fibertech-S line has been designed in a modular manner in order to allow the machine to be composed with the number and type of operating groups most suited to the needs of each customer.