KOMATSU PC138US-2 CRAWLER EXCAVATOR

Technical Description

The Komatsu PC138US-2 is a mid-size hydraulic excavator designed for optimal performance in confined spaces, featuring a short tail swing for enhanced maneuverability. It is powered by a turbocharged Komatsu SAA4D95LE-3 engine with a displacement of 199 cubic inches delivering 88 hp (66 kW) at 2200 rpm. The machine has an operating weight of approximately 29,718 lbs and a fuel capacity of 52.9 gallons. Its hydraulic system operates at a relief valve pressure of 5049 psi, with a pump flow capacity of 59.8 gallons per minute, enabling responsive and efficient digging operations. The excavator offers six boom and stick configurations that provide versatile lifting and digging capabilities. Maximum digging depths range from 16.7 ft to 19.4 ft depending on the boom/stick option, while the maximum cutting height varies from 27.9 ft to 31.9 ft. Loading heights reach up to 24.2 ft, with maximum reaches along the ground extending to 28.3 ft. Maximum vertical wall digging depths range between 10.5 ft and 17.6 ft across options. Bucket capacities span from 0.5 to 1 cubic yard, supporting a variety of job requirements. Key dimensions include a ground clearance of 1.3 ft, track gauge of 6.6 ft, and track shoe size of 19.7 inches. The maximum travel speed is 3.2 mph. The excavator’s swing mechanism operates at 10.5 rpm with a drawbar pull of 27,558 lbs, highlighting its power and stability. With a tail swing radius of 4.9 ft and a cab height of 9.3 ft, the PC138US-2 excels in areas requiring precise operation and limited space access. Overall, it provides a robust, efficient solution for diverse excavation tasks with high operator comfort and control.