The Doosan DX520LC is a large-scale hydraulic crawler excavator engineered for demanding earthmoving and excavation applications. Powered by a Doosan DV11 turbocharged air-to-air intercooled engine, this machine delivers 328 horsepower at 1,800 rpm with a maximum torque output of 1,135.9 foot-pounds, enabling efficient operation across diverse job sites. The excavator features three interchangeable boom and stick configurations, with the premium option extending maximum digging depth to 49.7 feet and reach along ground to 63.9 feet, accommodating variable operational requirements. With an operating weight of 111,774 pounds and a robust undercarriage design, the DX520LC provides exceptional stability and mobility. Its track system comprises 53 shoes per side with a ground pressure of 12.5 psi, minimizing ground disturbance while maintaining traction. The machine achieves a maximum travel speed of 3.2 mph with a swing speed of 8.8 rpm, facilitating efficient positioning on site. The hydraulic system incorporates a 187.6-gallon-per-minute pump flow capacity with a 4,550-psi relief valve pressure, delivering the power necessary for sustained heavy-duty digging operations. Bucket capacity ranges from 1.1 to 3.8 cubic yards, accommodating various material handling tasks. The operator cabin features comprehensive visibility with four-side safety glass windows and an adjustable suspension seat for enhanced comfort during extended shifts. Advanced e-EPOS (Electronic Power Optimizing System) technology optimizes fuel efficiency while maintaining work productivity, making the DX520LC an economical choice for large-scale construction and mining operations.