Rotac Pneumatic Rotary Actuators Welcome to the world of rotary motion. Micromatic’s actuators have earned worldwide renown under the trade names of Rotac and Hyd-ro-ac. Micromatic (formerly Micro-Precision), long recognized as an industry leader, has been designing and manufacturing rotary actuators for over forty years. Micro-Precision provides actuators with either hydraulic or pneumatic capability. Your imagination alone limits the number of possible applications. Micromatic offers true “A to Z” capability. Our standard units produce up to 700,000 in. lbs. of torque @ 3000 PSI, and “specials” can be built with 4,500,000 in. lbs. @ 2200 PSI capability. If your application requires an actuator outside the range of Micromatic’s standard line, their seasoned product design and application engineering group will modify and/or design a specialty actuator to suit your needs. For more information regarding Micromatic and their line of rotary actuators, contact Neff Power at (800) 325-8612, request literature through our website, or visit the Downloads and Links page.