S.T.M. slewing drives are an essential component in keeping weight and size to a minimum on equipment such as tower cranes, Pitch and Yaw drives for wind energy, aerial platforms and mixers. Their planetary structure means that they can withstand very high torque values while maintaining reduced dimensions, reduced weight and high efficiency. The wide range of available ratios enables the selection of a motor size and type which best suits users requirements: hydraulic or electric. Bevel input and hydraulic brake are some of the options, which are available for this series. Simple mounting, operating reliability and versatility make these units suitable for the most severe duties and environments.