Doosan launch new-generation 25-tonne crawler excavator

Latest DX255LC-3 model offers higher levels of controllability, comfort and fuel-efficiency

DOOSAN Construction Equipment have recently launched their new 25-tonne DX255LC-3 crawler excavator, which has been specially designed to offer significant gains in productivity, fuel-efficiency, controllability, operator comfort and durability, compared with previous-generation machines.

In designing the new excavator to meet Stage IIIB regulations, Doosan say they have gone much further, fully utilizing the increased power available by creating an optimum balance between displacement and engine power. The new DX255LC-3 excavator is powered by a six-cylinder, turbocharged Doosan DL06K water-cooled diesel engine that provides 138kW (185hp) at 1,900 rev/min.

Featuring a high-pressure common-rail design with direct fuel injection and electronic control, the DL06K engine meets Stage IIIB emission regulations through the use of cooled exhaust gas recirculation (EGR), diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) after-treatment technologies.

The DX255LC-3 model has an operating weight of 25.08 tonnes with a standard boom, arm and 1.1 cubic metre bucket. The bucket breakout force is 17.9 tonnes (ISO), while the arm breakout force is 12.8 tonnes (ISO).  Maximum digging reach is 9.9m at ground level in the standard monobloc configuration and 10.3m in the articulated configuration. The maximum digging depth is 6.8m in the monobloc configuration.

Compared with previous-generation machines, traction force has been increased by 8% on the DX255LC-3 excavator, as has power (8%) and engine torque (5%). In addition, lifting capacities have risen by 7%, along with a 13% increase in productivity and up to an 11% reduction in fuel consumption.