HITACHI EX400-5 CRAWLER EXCAVATOR

Technical Description

The Hitachi EX400-5 is a robust hydraulic excavator designed for heavy-duty earthmoving applications, featuring four configurable boom and stick options to optimize reach and digging performance. The boom/stick combinations provide maximum cutting heights ranging from 33.4 ft to 38.5 ft, maximum digging depths from 24.3 ft to 30.4 ft, maximum loading heights between 22.7 ft and 28.4 ft, and maximum reach along ground spanning 36.7 ft to 43.4 ft, accommodating various operational needs. Vertical wall digging depth varies from 18 ft to 28.2 ft per configuration. The excavator maintains a consistent shipping height of 11.4 ft and length of 38.8 ft regardless of configuration. It is equipped with a turbocharged A-6RB1TQA engine delivering 301 horsepower (224 kW) at 2000 rpm and a maximum torque of 907.3 lb-ft at 1400 rpm. The engine displaces 838 cubic inches and supports a fuel capacity of 159.9 gallons. The hydraulic system features a flow capacity of 190.3 gallons per minute and operates under a relief valve pressure of 4980 psi, facilitating efficient hydraulic performance. The machine’s hydraulic fluid capacity is 137.4 gallons. The EX400-5 supports bucket capacities between 1.8 and 3 cubic yards, with a reference capacity of 2.4 cubic yards. Key dimensions include a ground clearance of 1.7 ft, a height to the cab top of 10.4 ft, a track ground length of 13.3 ft, and an 11 ft width across tracks. The undercarriage setup includes 47 shoes per side (23.7 in shoe size), a track gauge of 9 ft, and a ground pressure rating of 11.2 psi. Travel speed tops at 3.5 mph, with a swing speed of 9 rpm. These specifications combine to provide a powerful excavator capable of handling large-scale excavation tasks with versatility and reliability.