KOMATSU H285S CRAWLER EXCAVATOR

Technical Description

The Komatsu H285S is a large hydraulic excavator designed for heavy-duty mining and construction applications, offering exceptional power, reach, and lifting capacity. With a gross engine output of 1582.5 hp (1,180 kW) from its turbocharged 16-cylinder K2000E engine operating at 1800 rpm, the H285S delivers robust performance for demanding excavation tasks. The machine features a reference bucket capacity of 22.7 cubic yards and an operating weight of approximately 738,549 lbs, ensuring stability and efficiency in high-production environments. Its boom and stick configuration provides a maximum cutting height of 52.9 ft, a maximum digging depth of 28.9 ft, and a maximum reach along the ground of 55.8 ft, while the vertical wall digging depth reaches 6.6 ft. The loading shovel variant offers a maximum cutting height of 57.5 ft, a maximum dig depth of 10.4 ft, and a maximum dump height of 41.7 ft, with a ground reach of 48.3 ft. The excavator’s dimensions include a shipping height of 33.5 ft, a shipping length of 59.1 ft, and a width to the outside of tracks of 21.2 ft. Ground clearance is 3.2 ft, and the height to the top of the cab is 25.7 ft. Hydraulic system specifications include a pump flow capacity of 951.1 gpm, a system fluid capacity of 782 gallons, and a relief valve pressure of 4495 psi. The swing speed is 3.3 rpm, and the undercarriage features a track gauge of 17.3 ft and a shoe width of 47.3 in, providing a ground pressure of 28 psi for optimal traction and stability.