KOMATSU H255S CRAWLER EXCAVATOR

Technical Description

The Komatsu H255S is a large hydraulic excavator engineered for heavy-duty mining and construction applications, delivering exceptional power, reach, and lifting capacity. With a gross engine output of 1207 hp (900 kW) from its turbocharged K1500E 12-cylinder engine operating at 1800 rpm, the H255S ensures robust performance in demanding environments. The machine features a reference bucket capacity of 18.4 cubic yards and offers a maximum cutting height of 48.3 feet, a maximum digging depth of 28.6 feet, and a maximum loading height of 31.2 feet, enabling efficient material handling and excavation. Its maximum reach along the ground extends to 49.6 feet, while the vertical wall digging depth reaches 6.6 feet. The excavator’s dimensions include a shipping length of 54.2 feet and a shipping height of 29.9 feet, with a width to the outside of tracks at 18.4 feet. The undercarriage is designed for stability, with a ground pressure of 32 psi, a track gauge of 15.8 feet, and a shoe width of 31.5 inches. The hydraulic system provides a flow capacity of 713.3 gpm and a relief valve pressure of 4495 psi, supporting powerful and precise operation. The H255S has a swing speed of 4.6 rpm and a maximum travel speed of 1.5 mph. With a fuel capacity of 977.5 gallons and a hydraulic fluid capacity of 766.1 gallons, the machine is built for extended operation. Its operating weight is 529,109.5 pounds, ensuring stability and traction in challenging terrain.