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New D-Ecopower technology on Doosan excavators

Doosan DX380LC-3 crawler excavator

Increased productivity and fuel efficiency for new 34-tonne and 39-tonne crawler excavators

THE new Doosan DX340LC-3 and DX380LC-3 Stage IIIB-compliant crawler excavators both feature new D-Ecopower technology, providing operators with increases in productivity and fuel efficiency, as well as smoother controls.

D-Ecopower technology utilizes an electronic pressure-controlled pump within a closed-centre hydraulic system to accomplish increases of up to 26% in productivity and up to 12% fuel-consumption improvements, depending on the mode selected.


A closed-centred main control valve minimizes pressure loss, while the electric pressure-controlled pump manages and optimizes engine power more effectively.

The nine D-Ecopower sensors detect the amount of hydraulic oil necessary to accomplish a specific task and precisely meter the amount of oil required rather than continuously forcing a fixed amount of oil through the system, thereby improving efficiency.

Software is utilized to electronically reproduce the full benefits of an open-centre hydraulic system with very little energy loss. The hydraulic system and engine horsepower are fully optimized and synchronized, further reducing losses within the system.

Improved feedback to the operator through the joystick results in improved machine control and less operator fatigue. The acceleration and deceleration of the excavator workgroup functions are smoother, allowing operators to perform repetitive swinging and digging motions with fewer jerking movements.


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