The 2-20D electric shot-blast cleaning system produces a 20-inch blast pattern to strip, clean and profile concrete or steel surfaces. Designed for applications such as parking garages, airports and highway and bridge work, it has a travel speed to 108 fpm and can prepare 350 to 3,500 square feet per hour, depending on the application. It uses two side-by-side blast wheels, positioned to provide an even pattern. Other features include twin 15-hp motors and a self-propelled drive system with integrated brake.