DOOSAN DX490LC-5 CRAWLER EXCAVATOR

Technical Description

The Doosan DX490LC-5 is a heavy-duty hydraulic excavator engineered for high-performance digging and loading applications. It features a powerful 380 hp (283 kW) Scania DC13 turbocharged engine with a 775.1 cu in displacement, delivering a maximum torque of 368.8 lb-ft at 1300 rpm. The engine incorporates double-element air cleaners and operates efficiently with a 24 V starter system and a 28 V alternator at 100 amps. Hydraulic capabilities include a main pump flow of 177 gpm and a pilot gear pump delivering 6.3 gpm; the system operates at a relief pressure of 4694 psi in normal mode and can boost up to 4978 psi to maximize digging force and operational efficiency. The excavator offers two boom/stick configurations: Option 1 achieves a maximum digging depth of 24 ft, loading height of 23.9 ft, and a reach along the ground of 38.9 ft; Option 2 allows an extended digging depth of 26.1 ft with a loading height up to 25.4 ft, optimized for different job site requirements. The minimum swing radius for both options measures 205.2 inches, facilitating work in confined spaces. The machine’s shipping dimensions include a height of approximately 11.3-11.8 ft and length around 40.2-40.3 ft. The undercarriage is robust, with a track gauge of 10.9 ft, 53 shoes per side (each 35.5 in wide), and provides a ground pressure of 8.4 psi, supported by 9 bottom rollers and 3 top rollers per side. The counterweight is 20,283 lbs, aiding stability during heavy lifts. The excavator’s operating weight reaches 112,206 lbs, with ample fuel (181 gal) and hydraulic fluid (132.1 gal) capacities to support long operation cycles. Additional features include a 12.5 ft tail swing radius, 11 ft cab height, and advanced hydraulic and engine controls to optimize power, fuel efficiency, and operator comfort during demanding excavation tasks.