The R1200-9, which has an operating weight of 120tonnes, started in March in the city’s financial heart on the site of the soon-to-be Bank of China complex. The huge excavator is breaking reinforced concrete foundations with a 7tonne hydraulic breaker. The first task to complete is a 35m-deep, 6-storey underground parking area.
The excavator, powered by a 567kW turbocharged diesel engine, was designed for heavy earthmoving, stationary digging and long-reach demolition duties. The standard equipment includes double grouser shoes measuring 710, 800 and 900mm in width. For this particular demolition job, the client was looking for narrow shoes, which will also be used for the excavator’s next assignment at a quarry near Luxembourg City.
The state-of-the-art CAPO (Computer Aided Power Optimisation) system ensures optimum performance from the engine and the two hydraulic pumps. The different power modes serve specific working loads. In addition, the system features auto deceleration and a power boost. The LCD display monitors engine speed, coolant and hydraulic oil temperatures and the diagnostic error codes. At the push of a button, the operator can select boom/swing priority and power mode settings.
This smart function adapts the ideal hydraulic flow balance for boom and swing operation to the application at hand. CAPO monitors the hydraulic functions and continually adapts hydraulic flow to provide maximum performance and productivity. The 120tonne high-capacity excavator comes with a 7,550mm mono boom and a 3,400mm arm.
