KOMATSU PC138US-11 CRAWLER EXCAVATOR

Technical Description

The Komatsu PC138US-11 is a mid-sized, short-tail swing hydraulic excavator engineered for high efficiency and versatility in confined urban and construction environments. Powered by a Komatsu SAA4D95LE-7 turbocharged, water-cooled, EU Stage V compliant engine, it delivers 97.3 hp (72.5 kW) at 2050 rpm, optimized for fuel efficiency and reduced emissions. The machine operates with a closed-center load sensing (CLSS) hydraulic system featuring Komatsu's HydrauMind technology, providing precise and responsive control while enhancing fuel savings. This model supports three boom and stick configuration options, allowing for maximum cutting heights ranging from 30 ft to 31.9 ft and digging depths up to 19.4 ft, adaptable for varied job site demands. It offers a maximum reach along the ground near 28.3 ft and a vertical wall digging depth up to 17.6 ft, supporting efficient material handling and excavation. The excavator has a compact shipping height between 9.4 ft and 10.6 ft, enabling easy transport. The PC138US-11’s undercarriage includes 43 track shoes per side with a track gauge of 6.6 ft and ground clearance of 1.3 ft, supporting stable mobility with a maximum travel speed of 3.2 mph and a maximum drawbar pull of approximately 27,557 lbs. The swing mechanism provides 11 rpm swing speed with electrically actuated wet multiplate brakes integrated into the swing motor for precise movements. With an operating weight around 30,600 lbs, fuel capacity near 53 gallons, and hydraulic fluid capacity of 18.3 gallons, this excavator balances power and efficiency. The design features a low tail swing radius of 4.9 ft and a top cab height near 9.3 ft, ideal for work in restricted spaces. Operator comfort and productivity are enhanced with ergonomic controls, proportional pilot controls, and a well-appointed cab environment.