HITACHI ZX670LC-5 CRAWLER EXCAVATOR

Technical Description

The Hitachi ZX670LC-5 excavator is a heavy-duty hydraulic excavator optimized for large-scale earthmoving and construction tasks. It features a robust Isuzu 6WG1-iT4 engine, a 15.7-liter inline 6-cylinder diesel powerplant equipped with turbocharging and air-to-air charge air cooling, meeting EPA Interim Tier 4 emissions standards. This engine delivers a net rated power of 345 kW (463 hp) at 1800 rpm, with a high torque output enabling efficient heavy lifting and digging operations. The machine's operating weight is approximately 158,045 lbs, offering excellent stability and digging power. The ZX670LC-5 achieves a maximum digging depth of 30.0 feet and a maximum reach along the ground of 45.4 feet, making it suitable for deep excavation work. Its hydraulic system uses open center, load sensing technology with two variable-displacement main pumps delivering a combined maximum rated flow of 489 L/min, supporting high-efficiency boom, arm, and bucket movements. Operating pressures are set at 31,900 kPa for implement circuits and up to 34,300 kPa for travel circuits, allowing powerful and precise control. The powertrain incorporates a 2-speed propel with automatic shift, enabling travel speeds up to 5.2 km/h (3.2 mph) in high gear. The excavator can operate effectively on slopes with up to 70% (35°) off-level capability. Additional features include a hydraulic-driven suction-type cooling fan system, swing speed of 9.1 rpm with a torque of 194,000 Nm, and a generous 900-liter fuel tank volume for extended operation. The operator cabin integrates advanced controls with a multifunction color LCD monitor for diagnostics and system monitoring, promoting efficient and safe machine management.