KOMATSU PC290LC-6 CRAWLER EXCAVATOR

Technical Description

The Komatsu PC290LC-6 is a mid-size crawler excavator engineered for versatile earthmoving and excavation applications. Powered by a turbocharged SA6D102EA-1 diesel engine, this machine delivers 174 net horsepower (130 kW) at 2200 rpm, with a gross output of 185 hp (138 kW), providing substantial digging force across diverse working conditions. The excavator weighs 62,831.8 lbs (28.5 tons) and operates on a robust undercarriage featuring 45 shoes per side, 7 track rollers per side, and 2 carrier rollers per side, all supported by 23.7-inch shoes for optimal ground pressure management at 8.4 psi. The machine's hydraulic system is equipped with a 141.6 gpm pump delivering pressure up to 5,049.3 psi through a 43.9-gallon fluid capacity system, enabling responsive boom and bucket control. The swing mechanism operates at 11 rpm, while maximum travel speed reaches 3.3 mph (5 kph) with drawbar pull capacity of 50,706 lbs. Operational reach ranges from 29.5 to 34.5 feet depending on boom and stick configuration, with digging depths extending from 17.8 to 21.7 feet. The excavator accommodates six boom/stick options, allowing operators to optimize cutting height, loading height, and vertical wall digging depth for specific project requirements. Fuel capacity of 89.9 gallons supports extended working hours, while comprehensive fluid management systems including 6.5 gallons cooling capacity and 7 gallons engine oil capacity ensure reliable performance. Operating at 24 volts with a 55-amp alternator, the PC290LC-6 was manufactured from 1998 to 2002 and represents a proven platform for construction, demolition, and material handling operations.