DOOSAN DX300LC-5 CRAWLER EXCAVATOR

Technical Description

The Doosan DX300LC-5 is a mid-sized hydraulic crawler excavator powered by a Scania DC09 engine delivering 271 gross horsepower and 693.4 lb-ft of torque at 1,400 rpm. The machine features exceptional digging capabilities with maximum depths ranging from 24 to 26.1 feet depending on boom/stick configuration, and maximum digging heights between 33.9 and 34.2 feet. The excavator accommodates bucket capacities from 0.5 to 0.6 cubic yards, providing versatility for various earthmoving applications. The hydraulic system utilizes dual variable displacement tandem axial piston pumps delivering 131 gallons per minute at maximum flow, with relief pressures of 4,978 psi in normal mode and 5,263 psi in power mode. The swing mechanism achieves 9.9 rpm with a maximum swing torque of 12,137 kgf·m, enabling smooth operation and precise positioning. Operating weight reaches 68,764 pounds with a 11,684-pound counterweight, providing stability during heavy lifting operations. The undercarriage features 48 shoes per side with nine bottom rollers and two top rollers for enhanced track durability and traction. The machine maintains a compact undercarriage width of 9.8 feet and tail swing radius of 10.6 feet, minimizing swing radius interference in confined work areas. Fuel capacity of 132.1 gallons and hydraulic fluid capacity of 81.9 gallons ensure extended operating periods. The electrical system comprises 24V alternator and starter components with dual 12V, 100Ah batteries, providing reliable cold-weather starting capability. Maximum traction force reaches 77,162 lb-ft, enabling excellent pulling power on challenging terrain grades up to 70 percent.