DOOSAN DX420LC-5 CRAWLER EXCAVATOR

Technical Description

The Doosan DX420LC-5 is a mid-range crawler excavator engineered for versatile earthmoving and construction applications. Powered by a Scania DC09 engine, this machine delivers 345 gross horsepower and 338 net horsepower at 1,800 rpm, with a maximum torque of 1,179 foot-pounds at 1,300 rpm. The excavator operates at a maximum weight of 94,779 pounds, providing substantial stability and digging capability. The hydraulic system features a displacement capacity of 775.1 cubic inches with dual main pumps delivering 177 gallons per minute and a pilot pump supplying 6.4 gallons per minute. Relief pressures reach 4,694 psi in normal mode and 4,978 psi in power mode, enabling the machine to generate bucket digging force of 59,799 pounds and arm digging force of 43,388 pounds. The excavator achieves a maximum digging depth of 25.4 feet and a cutting height of 35.5 feet, with a maximum reach along the ground of 37 feet. Key dimensional specifications include an overall length of 38.6 feet, an upper structure width of 9.9 feet, and a track shoe width of 31.5 inches. The undercarriage incorporates 50 shoes per side with nine bottom rollers, generating ground pressure of only 8.5 psi for minimal ground disturbance. The swing mechanism rotates at 8.8 rpm with a minimum swing radius of 176.2 inches. Fuel capacity stands at 169.1 gallons, supporting extended operational periods. The hydraulic tank holds 103.1 gallons, with additional coolant and oil reserves for sustained performance. This configuration makes the DX420LC-5 suitable for demolition, quarrying, and general construction work requiring balanced power and precision.