Siemens Automation and Drives (A&D) has developed a new series of high-performance torque motors for drive applications with high torques or low speeds of ro-tation. The motors from the HT-direct series are based on permanent-magnet technology. The HT-direct drives are characterized by their compactness, lower work and cost factors in installation and maintenance, reduced noise emissions and up to 3% greater efficiency compared to solutions with gears. Moreover, the low-maintenance design of the motors substantially increases availability.