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Fuel efficiency is improved

Doosan has launched the 36- tonne DX340LC-5 (pictured) and 40-tonne DX380LC-5 Stage IV-compliant crawler excavators.

They include features to boost fuel efficiency and operational time, with a focus on increased power, robustness and agility.

The operating weights of the DX340LC-5 and DX380LC-5 have increased by 1,300kg and 1,000kg, respectively. With the heavier tonnages, lifting capacities have increased by 1% and 5% over the front and side in the DX340- LC-5 and 3% over both the front and side in the DX380LC-5.

The machines are powered by the Scania DC9 five-cylinder diesel engine, with an output of 237kW of power at 1,800rpm.

This provides a 13% and 11% increase in engine power, respectively, and a 4% boost in torque over the LC-3 models. The engine meets Stage IV emission regulations without the need of a diesel particulate filter through the use of cooled exhaust gas recirculation and selective catalyst reduction after-treatment technologies.

Other features include a trip meter setting screen which allows operators to check fuel consumption daily or over a desired period directly from the control panel; auto shut-off, which provides an automatic shut down for the engine when the machine has been idling for a specified time, and the Doosan-developed smart power control to optimise the balance between the pumps’ output and the diesel engine.

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