Extrema 36 Inch profile sander, excellent for sanding raw wood, profiles, crown moulding, and brush sanding and deburring steel and aluminum. It is powered by the option of either a 3 Horsepower, single phase motor, 230 volt, or a 5 horsepower, three phase motor, 230 volt. The variable speed sanding head can be run from 400 to 12000 RPM, with a feed rate from 8 to 25 Feet per Minute, powered by a 1/4HP feed motor. It requires 550 CFM: Machine weight, 800 pounds