KOMATSU PC290NLC-7 CRAWLER EXCAVATOR

Technical Description

The Komatsu PC290NLC-7 is a robust hydraulic crawler excavator engineered for versatile earthmoving and excavation applications. Powered by a Komatsu SAA6D102E-2 turbocharged diesel engine, the machine delivers 179 horsepower at 2,050 rpm, providing reliable performance across demanding jobsites. With an operating weight of 61,906 pounds and a maximum drawbar pull of 55,997 pounds, this excavator offers exceptional stability and digging force. The machine features four interchangeable boom and stick configurations to suit different operational requirements. These options provide maximum digging depths ranging from 17.9 to 22.8 feet, maximum reach along ground extending from 29.7 to 34.1 feet, and maximum cutting heights between 31.1 and 33.3 feet. The swing mechanism operates at 10.5 rpm, enabling efficient positioning and material placement. Hydraulic system specifications include a pump flow capacity of 118.9 gallons per minute with a relief valve pressure of 5,404.9 psi, ensuring adequate power for all attachment and travel functions. The reference bucket capacity of 1.3 cubic yards accommodates diverse material handling tasks. The undercarriage features seven track rollers per side with 45 shoes, generating ground pressure of only 8.3 psi, minimizing ground disturbance and enabling operation on soft terrain. Maximum travel speed reaches 3.5 mph with a low-pressure track design. Operating specifications include a 105.7-gallon fuel capacity, 37.8-gallon hydraulic system capacity, and a 24-volt electrical system with 60-amp alternator output, supporting extended operational periods with comprehensive onboard systems.