A surgical system having all of the various pneumatic control sub-systems integrally mounted on a common manifold. The various required control mechanisms such as valves are likewise integrally mounted to the common manifold. Air cylinders for valve actuation are directly installed into the manifolds, and pressurized air for the air cylinders is supplied to the cylinders through the manifolds. Such a construction eliminated the need to use external air tubing to supply the air cylinders with pressurized air, thereby improving reliability and simplifying construction.