DOOSAN DX225LC SLR CRAWLER EXCAVATOR

Technical Description

The Doosan DX225LC SLR is a heavy-duty long-reach hydraulic excavator designed for extensive digging and demolition applications. It features a maximum digging depth of 38.3 feet and a maximum reach along the ground of 50 feet, enabling operations in deep and hard-to-access areas. Powered by a robust 157 hp (117 kW) engine, the DX225LC SLR achieves an operating weight of approximately 51,147 lbs, balancing power and stability for efficient earthmoving. The machine utilizes a high-strength hydraulic system with shock-absorbing cylinders to enhance durability and smooth operation under heavy loads. Its hydraulic pump system includes two variable displacement tandem axial piston pumps with computer-aided flow control to optimize fuel efficiency and hydraulic performance. The swing mechanism employs an axial piston motor connected to a 2-stage planetary reduction gear immersed in oil, delivering a maximum swing speed of roughly 9.2–10.9 rpm and swing torque up to 12,137 kgf·m, ensuring precise and powerful rotation. The undercarriage is engineered for durability with heat-treated connecting pins, induction-hardened track shoes, and a hydraulic track adjuster featuring shock-absorbing tension mechanisms. Fluid capacities include a large fuel tank capacity around 500 liters to support extended operation. The DX225LC SLR incorporates multiple operating modes and power modes for customizable performance, including an auto-deceleration system to reduce engine RPM at low loads for fuel savings. Overall, this model combines long reach, substantial power, durable hydraulics, and advanced control systems suited for demanding excavation and demolition tasks.