Equipped with a tilting cab and high-reach arm, the R520LC-9A DM demolition excavator weighs 131,840 pounds. It has a certified Tier 4-Interim Cummins QSX11.9 diesel that delivers 352 horsepower. The boom measures 45 feet 1 inch long, the mid arm is 8 feet 10 inches, and the end arm is 26 feet 2 inches long. Maximum work reach is 47 feet 1 inch, and maximum working height is 85 feet 8 inches. The redesigned hydraulic system includes improved pump flow and spool valves engineered for more precise flow to each function. Hydraulic valves, piston pumps, pilot controls and travel functions were also improved.
