Technical Description
The Komatsu PC290NLC-6 is a mid-size hydraulic crawler excavator ideal for heavy-duty earthmoving applications, weighing approximately 62,578 lbs. It features a turbocharged SA6D102EA-1 engine with a displacement of 358.9 cubic inches, delivering a gross power of 185 hp (130 kW) at 2200 rpm and net power of 174 hp (130 kW), ensuring robust performance for demanding jobs. The machine's hydraulic system includes high-capacity pumps with 141.6 gpm flow and a relief valve pressure set at approximately 5,049 psi, enabling smooth, powerful boom and arm movements.
The excavator offers multiple boom and stick configurations to suit various operational demands. Depending on the boom/stick option, maximum cutting height ranges from 30.6 ft to 34.4 ft, maximum digging depth varies between 17 ft and 22.7 ft, and the maximum reach along the ground extends from 29.5 ft up to 33.9 ft. Vertical wall digging depths range from 8.2 ft to 20.7 ft, reflecting the unit's versatility across diverse digging conditions. The reference bucket capacity is about 1.1 cubic yards, balancing material volume and weight for effective cycle times.
The undercarriage consists of 45 track shoes per side, each 23.7 inches wide, with 7 track rollers and 2 carrier rollers per side, providing excellent stability and ground pressure of 8.4 psi. Travel speed reaches up to 3.3 mph, with a drawbar pull rated at 50,706 lbs. The swing mechanism operates at 11 rpm, supported by 1.5 gallons fluid capacity in the swing drive.
Additional system capacities include a fuel tank of 89.9 gallons, hydraulic system fluid of 43.9 gallons, engine oil capacity of 7 gallons, and cooling system fluid at 6.5 gallons, facilitating long operational hours with minimal downtime. Operating voltage is 24 volts with a 55-amp alternator supply, supporting onboard electrical needs. This machine combines power, reach, and hydraulic efficiency, making it suitable for a wide range of construction and excavation tasks.
