Technical Description
The Komatsu PC490LC-11 is a large, high-performance hydraulic excavator engineered for demanding earthmoving and excavation applications. Powered by a Komatsu SAA6D125E-7 engine, it delivers 362.1 hp (270 kW) at 1,900 rpm, with a bore of 5 in and stroke of 6 in, providing robust power and reliability. The machine features a variable displacement axial piston hydraulic system, with a maximum pump flow of 182.3 gpm, ensuring efficient operation and precise control. Available in multiple boom and stick configurations, the PC490LC-11 offers maximum cutting heights from 34.1 ft to 37.9 ft, digging depths up to 30.2 ft, and maximum reach along the ground up to 43.3 ft, making it highly versatile for a range of job site requirements. The excavator’s operating specifications include a fuel capacity of 171.8 gal, hydraulic system fluid capacity of 65.6 gal, and engine oil capacity of 9.8 gal. It boasts a swing speed of 9.1 rpm and a maximum travel speed of 3.5 mph (5 kph), with a drawbar pull of 75 lbs. The undercarriage is equipped with 8 track rollers and 49 shoes per side, a 23.7 in shoe size, and a 9.5 ft track gauge, ensuring stability and durability. The machine’s dimensions include a ground clearance of 2.3 ft, a height to the top of the cab of 11.1 ft, a length of track on ground of 17.7 ft, a tail swing radius of 12 ft, and a width to the outside of tracks of 9.9 ft. The PC490LC-11 is designed for high productivity, durability, and operator comfort, making it a top choice for heavy-duty excavation tasks.
