Robust single disc machine with two working speeds (180/360 revolutions/min.) for efficient, fast & cost-effective cleaning & polishing. Duo Speed is ideal for basic cleaning of a wide variety of floor coverings. When changing the working speed to 360rpm, our robust single disc machine also enables the crystallization of natural stone floors as well as polishing of various floor coverings. The two working speeds can be easily switched with the integrated button on the motor head.