The SMC MDSUB3-90D is a compact and highly reliable pneumatic rotary actuator engineered for precise angular positioning in automated systems. Utilizing a durable rack-and-pinion mechanism, this unit delivers smooth and accurate 90-degree rotation, making it an excellent choice for tight-space applications that demand strict motion control. Manufactured in Japan by SMC, a global leader in pneumatic technology, it operates safely and efficiently with a maximum pressure rating of 0.7 MPa. Its robust construction ensures extended operational life in industrial manufacturing, robotics, and precise assembly line environments.