HITACHI ZX135US CRAWLER EXCAVATOR

Technical Description

The Hitachi ZX135US excavator is a versatile medium-sized hydraulic excavator engineered for efficient operation in confined spaces thanks to its reduced-tail-swing design. It features two boom and stick configurations: Option 1 offers a maximum cutting height of 30.3 ft, digging depth of 18.2 ft, loading height of 22.2 ft, and max reach along ground of 26.8 ft; Option 2 enhances these capabilities with a 31.6 ft cutting height, 19.8 ft digging depth, 23.5 ft loading height, and 28.4 ft reach. The excavator is equipped with a turbocharged, intercooled Isuzu CC-4BG1TC engine delivering 88 hp (66 kW) at 2150 rpm and 250.8 lb-ft torque at 1600 rpm, supported by a 53.1-gallon fuel tank for extended operation. The hydraulic system features a pump flow capacity of 55.5 gpm and a relief valve pressure of 4980 psi, controlled via Hitachi’s advanced HIOS IV system to optimize boom, arm, and bucket responsiveness while minimizing power loss. Hydraulic fluid capacity is 31.8 gallons. The machine accommodates bucket sizes between 0.3 and 0.8 cubic yards, with a reference capacity of 0.7 cubic yards. Chassis specifications include a track gauge of 6.6 ft, track shoe width of 27.6 in, and a ground clearance of 1.5 ft, facilitating maneuverability on various terrains. The undercarriage provides a drawbar pull of 26,300 lbs and a max travel speed of 3.2 mph. The swing mechanism offers a 13.7 rpm swing speed with fluid capacity of 0.7 gallons. Dimensions include a shipping height of 9.4 ft, length of 24 ft, cab height of 9 ft, and width to outside of tracks of 8.9 ft, enabling efficient transport and onsite deployment. Overall, the ZX135US excels in urban and restricted environments, balancing powerful digging capacity and precise, smooth hydraulic controls.