Hyundai R180W-9A wheeled excavator has been upgraded with a Tier 4-Interim engine, a 155-horsepower Cummins QSB6.7. The R180W-9A has an operating weight of 38,100 pounds, dig depth of 19 feet 5 inches, and a bucket digging force of 26,330 pounds. Two arm configurations are available: a mono boom or jydraulic adjustable boom, each measuring 17 feet 1 inch. The hydraulic system has been redesigned with enhanced hydraulic valves, precision-designed variable volume piston pumps, fine-touch pilot controls and enhanced travel functions.