HITACHI ZX450-3 CRAWLER EXCAVATOR

Technical Description

The Hitachi ZX450-3 is a robust mid-sized hydraulic excavator engineered for heavy-duty construction, quarrying, and excavation operations. Powered by a turbocharged 6-cylinder AH-6WG1XYSA-01 engine, this machine delivers 314 net horsepower at 1,800 rpm with maximum torque of 940.4 lb-ft at 1,500 rpm, providing substantial digging force and operational efficiency. The excavator features an operating weight of approximately 100,751 pounds with dimensions of 38 feet 11 inches in length, 11 feet 6 inches in width, and 11 feet in height, making it transportable while maintaining impressive reach capabilities. The ZX450-3 offers exceptional versatility through six boom and stick configurations, delivering maximum digging depths ranging from 19.4 to 29.9 feet and maximum reach along the ground from 33.9 to 43.2 feet, accommodating diverse jobsite requirements. Bucket capacity ranges from 1.9 to 3.3 cubic yards with a reference capacity of 2.5 cubic yards, enabling efficient material handling across applications. The hydraulic system incorporates two variable displacement axial piston pumps delivering 360 liters per minute each, with system relief valve pressure set at 4,974.8 psi for optimized performance. Ground pressure of 12.4 psi and a tail swing radius of 12 feet facilitate operation in sensitive environments and confined spaces. The swing mechanism operates at 0-9 rpm with swing torque of 107,004 lb-ft. Additional features include a 24-volt electrical system with 50-amp alternator, 191.6-gallon fuel tank capacity, and responsive hydraulic controls enabling precise movements essential for complex excavation tasks and material placement operations.