The Hitachi Construction Machinery Co. produces an extensive line of construction equipment and mining equipment that includes several models of excavators. Consumers have access to the Hitachi EX30 excavator designed with a canopy or cabin. The cabin model features a cabin that completely encloses the operator while the canopy model features a canopy that rises from behind the operator and provides some overhead coverage.
Both the canopy model and the cabin model of this excavator have the same engines. Hitachi’s EX30 is fitted with an Isuzu model 3KR2 engine. This Isuzu engine is a four-cycle, water-cooled engine that features three total cylinders. The piston displacement on this diesel engine is 86.7 cubic inches. Fuel is fed to this Isuzu engine through a direct fuel injection system. Bore and stroke on the Hitachi EX30 excavator is 3.2 by 3.6 inches. With the engine running at 1,800 rotations per minute, this engine produces a maximum 69.4 foot-pounds torque.
Not including height, both canopy and cabin models of this excavator are manufactured to the same dimensions. The boom equipped on these excavators is 7 ft. 10 in. in length. This boom is attached to a 4 ft. 2 in. arm. Both the canopy model and the cabin model are 5 feet wide. The canopy model is 7 ft. 9 in. tall from the ground to the top of the canopy while the cabin model is 7 ft. 11 in. tall to the top of the cabin. With the excavator’s arm retracted, these machines are 15 ft. 4 in. long. Maximum dig depth offered by both models is 9 ft. 5 in. and maximum reachable height is 15 ft. 5 in. From the axis of rotation, this excavator can reach out to a length of 15 ft. 9 in.
The fuel tank fitted into the Hitachi EX30 excavator has the capacity to hold a total of 13.2 gallons of diesel fuel. This excavator is designed to hold a maximum 1.3 gallons of engine coolant and 1.5 gallons of engine oil. The hydraulic system designed for this excavator can hold a total of 10.5 gallons of hydraulic fluid. In “high” gear, this excavator can travel at a maximum speed of 2.61 miles per hour. Hitachi’s EX30 can travel at a maximum speed of 1.86 miles per hour in “low” gear. The standard bucket fitted onto this excavator can scoop up a maximum 0.12 cubic-yards of heaped material.