The HXX HydroExcavator from Vactor Manufacturing provides up to seven hours of continuous operation with the onboard water. Lower water flow results in less operator fatigue and a cleaner, more precise digging process. It has a 12-cubic-yard debris body fabricated from corrosion- and abrasion-resistant steel, a 1,200-gallon high-density polyethylene water tank that retains heated water temperature, and a top-mounted 7-foot hydraulic extendable boom that provides 320-degree rotation. Heated pump cabinets and a built-in boiler allow it to work on frozen ground in subzero temperatures. It is available in positive displacement and fan configurations. 800/627-3171; www.vactor.com.