Hitachi-Sumitomo SCX1200HD-2

The Hitachi-Sumitomo SCX1200HD-2 is a heavy-duty hydraulic crawler crane with a maximum lifting capacity of 120 tons, making it suitable for various lifting and foundation tasks. The crane’s boom system consists of a basic boom length of 15 meters, extendable up to a maximum of 72 meters. This versatility allows it to meet the needs of construction sites that require significant reach and height.

Powered by a Mitsubishi 6M70-TL diesel engine, the SCX1200HD-2 delivers a rated output of 272 kW (370 PS) at 2,000 rpm, providing robust power for heavy-duty operations. The engine meets Stage IIIA/Tier 3 emission standards, ensuring it adheres to modern environmental regulations. Its efficient hydraulic system ensures smooth crane operations with a rope line speed of 110 meters per minute on both the front and rear drums.

The crane is equipped with an advanced clutchless multiple wet-disc brake system, allowing for precise and stress-free braking regardless of the load weight. The braking system is complemented by a negative brake mechanism, which offers enhanced safety by providing effective braking even in the event of hydraulic pressure loss. Additionally, the SCX1200HD-2’s winch drums feature a free-fall function, with a rated line pull of 132 kN, ideal for foundation work such as casing tube drawing.

The SCX1200HD-2 offers a slewing speed of 1.9 rpm and adjustable travel speeds of 1.7 km/h in high mode and 1.0 km/h in low mode, allowing it to navigate various terrains efficiently. Its gradeability of 30% enables the crane to operate on inclined surfaces and challenging ground conditions with stability.

Designed for easy transport and assembly, the SCX1200HD-2 features a folding A-frame and cylinder-operated side frame assembly, simplifying the disassembly and setup process. The crane’s operating weight is approximately 131 tons with the basic boom and 120-ton hook block configuration. The ground contact pressure is around 97 kPa, providing stability and minimizing ground disturbance.

Safety is a priority, with features such as a load moment indicator (LMI) that displays crucial information including lifting load, rated capacity, working radius, and engine RPM. The system warns the operator with visual and audio alerts if lifting conditions approach unsafe levels.

The SCX1200HD-2 is well-suited for heavy-duty tasks in construction, infrastructure, and civil engineering projects, offering the power, safety, and operational flexibility required for demanding environments​.