Technical Description
The Komatsu H455S is a large hydraulic excavator designed for heavy-duty mining and construction applications. With an operating weight of 1,080,265 lbs, this machine delivers exceptional stability and power for demanding excavation tasks. The H455S is powered by a turbocharged Cummins KTTA38C engine, producing 2,236 hp (1,667 kW) at 1,800 rpm, ensuring robust performance in challenging environments. The engine features 12 cylinders and is optimized for high-efficiency operation. The excavator offers a maximum cutting height of 60.4 ft, a maximum digging depth of 32.9 ft, and a maximum loading height of 39.7 ft, making it suitable for deep excavation and high-reach loading. Its maximum reach along the ground extends to 62.7 ft, while the vertical wall digging depth reaches 3.3 ft. The reference bucket capacity is 36.7 cu yd, providing high productivity for bulk material handling. The machine’s dimensions include a ground clearance of 3.3 ft, a height to the top of the cab of 28.6 ft, a length of track on ground of 22.4 ft, and a width to the outside of tracks of 23.5 ft. The hydraulic system features a pump flow capacity of 1,157.1 gpm, a fluid capacity of 1,003.9 gal, and a relief valve pressure of 4,495 psi. The swing speed is 3.6 rpm, and the undercarriage delivers a ground pressure of 32 psi, ensuring stability and mobility on various terrains. The H455S also includes a loading shovel configuration with a maximum cutting height of 66.8 ft and a maximum dump height of 46 ft, further enhancing its versatility.
