WHEELABRATOR GROUP's computer-controlled peening system for the aerospace manufacturers peens tops and bottoms of aerospace structural members to prevent warping; two nozzle carriages traversing along the part width as the part travels on a non-marking roll conveyor; closed-loop pneumatic circuit for air pressure; closed feedback loop for media flow; encoders to sense carriage/nozzle position at any given time; and simple graphic user interface complete with real-time monitoring of process parameters and reporting capabilities. www.wheelabratorgroup.com