DOOSAN has introduced the new DX350LC-7 Stage V 36-tonne crawler excavator.
The machine is the first Stage V model to feature Doosan’s D-Ecopower technology, which the manufacturer said provides operators with higher productivity and lower fuel consumption per hour, as well as smoother controls.
Like the new 30-tonne DX300LC-7 Stage V model launched earlier this year, the DX350LC-7 excavator builds on the design of the previous Stage IV machine. Doosan said that as well as ‘higher performance and cost savings’, the excavator provides enhancements in operator comfort, uptime and return on investment.
The D-Ecopower technology focuses on the role of the hydraulics system. It utilises an electronic pressure-controlled pump within a closed centre hydraulic system to bring about increases of up to 26% in productivity and up to 12% in fuel consumption improvements, depending on the mode selected.
The D-Ecopower system uses nine sensors to detect the amount of hydraulic oil necessary for a specific task and meter the amount of oil required rather than continuously forcing a fixed amount of oil through the system.
To meet Stage V emission regulations, the DX350LC-7 is powered by the latest generation Doosan DL08 diesel engine, providing 209 kW of power at 1800 RPM.
Doosan added that new technology means maintenance of the diesel particulate filter (DPF) has been greatly reduced, with no maintenance required until the machine has operated for 8,000 hours.
