DOOSAN DX140LC CRAWLER EXCAVATOR

Technical Description

The Doosan DX140LC hydraulic excavator is a versatile mid-sized machine designed for efficient digging, loading, and site preparation tasks. It features five optional boom and stick configurations, offering maximum cutting heights between 26.9 ft and 30.3 ft, and maximum digging depths from 17.3 ft to 20.2 ft, enabling adaptability to diverse job requirements. The excavator’s maximum loading heights vary from 19.3 ft to 22.4 ft, and its maximum reach along the ground extends up to 28.5 ft. Shipping heights range from 8.5 ft to 9.1 ft, with shipping lengths between 25.1 ft and 26.5 ft depending on configuration. Powered by a turbocharged DL06 engine with air-to-air intercooler, the DX140LC delivers 95 hp (71 kW) at 1850 rpm and a peak torque of 321.6 lb-ft at 1400 rpm. The engine displacement is 359 cubic inches (5.9 liters). It incorporates a 24-volt electrical system and a 60-amp alternator. Fuel capacity is 70.6 gallons, with engine oil capacity at 6.7 gallons and cooling system fluid at 5.3 gallons. The hydraulic system has a pump flow capacity of 60.3 gallons per minute and operates with a relief valve pressure of 4699 psi, powering the machine’s work and travel functions while enabling smooth operation with independent or combined movements. The excavator’s operating weight totals approximately 30,864 lbs. The undercarriage provides 1.4 ft ground clearance, 8.5 ft track width, 10 ft track length on the ground, and maintains low ground pressure at 5.2 psi, optimizing stability and minimizing soil disturbance. It has a maximum travel speed of 3 mph and includes 46 track shoes per side, 7 track rollers, and one carrier roller per side. Swing speed is 10.7 rpm with a hydraulic swing mechanism. The operator’s cab height is 9.1 ft with a tail swing radius of 7.3 ft, providing good visibility and maneuverability. The bucket capacity is approximately 0.7 cubic yards, supporting efficient material handling. This combination of engine performance, hydraulic power, and flexible boom options makes the Doosan DX140LC ideal for a wide range of excavation and construction applications.