The Tornado F4 Slope hydroexcavator from Petrofield Industries holds 13 cubic yards of mud and more than 2,100 gallons of freshwater. A positive-displacement vacuum blower (4,000 to 6,300 cfm) pulls spoils to the tank via a boom with 342-degree rotation and a 26-foot reach. All of the critical components are housed in an insulated and heated aluminum van body. Because of the sloped floor design, operators do not hoist the tank to empty it, eliminating the dangers of dumping on uneven ground and around overhead power lines. 877/340-8141; www.tornadotrucks.com.