Designed for larger sectional doors, rolling doors and higher-cycle applications, the ControlHoist Optima is a heavy-duty, gear driven commercial door operator that is built with a continuous-duty, overload protected motor with high starting torque. All units feature heavy-duty industrial ball bearings, worm gear drive in oil bath and an electromechanical brake. Innovative features along with durable mechanical design, provide consistent and reliable operation for the most stringent agricultural, commercial, or industrial applications.