Hitachi KH300-3

The Hitachi KH300-3 is a versatile crawler crane with a maximum lifting capacity of 80 tons at 4.0 meters. It is equipped with a boom that extends from a basic length of 13 meters up to a maximum of 58 meters, offering flexibility for different lifting requirements. The crane can be further enhanced with a jib boom of 9 to 18 meters, bringing the total boom and jib length to a combined 49 to 76 meters.

In terms of operational speed, the main and auxiliary winches offer dual-speed control, with maximum hoisting speeds of 92 m/min on high-speed mode and 60 m/min on low-speed mode, using a 26 mm diameter rope. The boom winch operates at 40 m/min with a 20 mm rope diameter. The slewing mechanism features two speed settings of 3.0 and 1.9 rpm for precise and efficient rotation. The travel speed of the crane is 1.4 km/h on high gear and 0.8 km/h on low gear, allowing controlled movement across job sites.

The crane is powered by an Isuzu 6RB1 engine, with a rated output of 165.5 kW (225 PS) at 2000 rpm, providing reliable and efficient performance. The crane’s total operating weight is approximately 74.6 tons when configured with a 13-meter boom and an 80-ton hook. With a maximum gradeability of 16° or 40%, the Hitachi KH300-3 can handle sloped terrains with ease, making it ideal for construction sites with challenging conditions.

Additionally, the machine’s ground pressure is approximately 74.5 kPa (0.76 kgf/cm²), ensuring stability during lifting operations. Overall, the Hitachi KH300-3 is a powerful, durable, and flexible crawler crane well-suited for medium to heavy-duty lifting tasks.