HITACHI ZX190W-3 CRAWLER EXCAVATOR

Technical Description

The Hitachi ZX190W-3 is a robust wheeled excavator engineered for high productivity and operator comfort in demanding construction environments. Powered by a turbocharged, intercooled Isuzu AI-4HK1X 4-cylinder engine with a displacement of 316.9 cubic inches, it delivers 122 kW (164 HP) at 2,000 rpm and 483.2 lb-ft of torque at 1,500 rpm. The machine features a 2-speed power shift transmission and variable displacement axial piston travel motors, enabling a maximum travel speed of 21.8 mph (34 kph) and excellent gradeability. Hydraulic performance is optimized with two variable displacement axial piston pumps, providing a flow capacity of 99.9 gpm and a system relief pressure of 4,974.8 psi. The ZX190W-3 offers a range of digging and reach capabilities depending on boom/stick configuration, with maximum digging depths up to 20.8 ft and maximum reach along the ground up to 32.6 ft. Bucket capacities range from 0.7 to 1.6 cubic yards, supporting versatile material handling. The machine’s dimensions include a wheelbase of 8.7 ft, overall width of 8.4 in (11.3 ft with outriggers down), and a tail swing radius of 7.7 ft. With a ground clearance of 1.2 ft and a top cab height of 10.3 ft, the ZX190W-3 is designed for efficient transport and maneuverability. The hydraulic system, cooling system, and engine oil capacities are 63.5 gal, 5.9 gal, and 6.1 gal respectively, ensuring reliable operation. The ZX190W-3 is equipped with advanced features such as an oscillating axle with a 14-degree angle, a swing speed of 12.2 rpm, and a 24V electrical system for enhanced control and monitoring.