These twin rod air cylinders are a cost-effective means of achieving precise, non-rotating linear motion. The twin rod design has less than 1/3 of a degree of rotation, allowing precise rod alignment and virtually eliminating rod endplay for guided linear motion. Cylinders have a rectangular body that simplifies mounting, saves space in multiple applications, and makes it easy to achieve precise angles. In addition, having two cylinders integrated into a single housing produces twice the force of comparably sized conventional cylinders.