Pneumatics holds many advantages over other power-transmission technologies used in factory automation. These include speed, repeatability, safety, reliability, cleanliness, low potential for heat buildup, and relatively high power density. However, pneumatics is often overlooked for applications requiring closed-loop position control.
Although pneumatics is usually called on for its rapid, pick-and-place capabilities, advances in software, electronic control, and valve design may start giving other technologies a run for their money. A case in point is the S2 servopneumatic proportional control system, from Enfield Technologies, Shelton, Conn.