The Hitachi ZX850H is a heavy-duty hydraulic crawler excavator designed for demanding earthmoving and material handling operations. Powered by a Isuzu turbocharged diesel engine, it delivers 454 horsepower and 1,374 foot-pounds of torque at 1,500 RPM, providing robust performance across varied job sites. With an operating weight of approximately 167,331 pounds, this machine maintains excellent stability through a proven undercarriage system featuring 51 shoes per side and nine track rollers, generating minimal ground pressure of just 15 PSI for sensitive terrain. The ZX850H offers exceptional digging capabilities with three configurable boom and stick options, enabling maximum digging depths ranging from 23.8 to 29.1 feet and maximum reach along ground from 40.8 to 45.4 feet. The bucket capacity ranges from 1.8 to 5.0 cubic yards, with a reference capacity of 4.5 cubic yards, accommodating diverse material handling requirements. The cab measures 1,005 mm wide by 1,675 mm high, conforming to ISO standards and providing an independent, spacious work environment. Hydraulically optimized with dual variable displacement axial piston pumps delivering 8 GPM at 343 bar system pressure, the excavator maintains efficient operation across multiple work modes. The swing mechanism rotates at 8.2 RPM with a tail swing radius of 14.2 feet, offering precise maneuverability in confined spaces. Transport dimensions of 47 feet length and 15.2 feet height facilitate logistical deployment, while the track gauge of 11.4 feet and travel speed of 2.7 MPH enable effective site mobility. This combination of power, precision, and reliability makes the ZX850H suitable for mining, construction, and demolition applications.