Chipping machine for professional use, suitable to cut branches up to 220 mm in diameter. This machine is the best solution for chipping large quantities of material and working pieces of a large diameter. Equipped with two hydraulic-powered rollers, controlled by a No-Stress device, this machine is also provided with a special cutting-and-refining combined system, so that the homogeneous material resulting from chipping process may be used as fuel for chipped-material fired boilers.