The Cheyenne SP4-SP6 400 / 600 SS ia a rusticating machine with 4 or 6 heads, uppers and lowers, for artefacts such as boards and profiles in wood or WPC (Wood-plastic Composites) with maximum width 15.7 or 23.6 in x 7.87 in high. The motor-shaft group is integrated by a 45 mm diameter to ensure maximum rigidity with high-speed dynamically balanced brushes to work without vibrations. The machine consists of two independent and separate brushing groups; the first group (steel brush) is used for roughing while the second (silicon carbide brush) is used for finishing.