Profile: Illinois Pneumatics, Inc. is involved in the business of offering rolling diaphragm air cylinders. Our rolling diaphragm air cylinders are made from fabric reinforced elastomer diaphragms which seal the space between the piston and the cylinder I.D. Our products provide virtually frictionless conversion of pneumatic pressure to linear force. Our rolling diaphragm air cylinders are replacing conventionally sealed cylinders & actuators where low friction and reliability are requirements.