Doosan Construction Equipment has launched the new 48-tonne DX480LCA and 51-tonne DX520LCA large crawler excavators for markets in the Middle East and Africa (MEA).

This is the latest phase in the launch of the new LCA generation of Doosan crawler excavators for MEA replacing the previous SOLAR range, which began in 2012 with the introduction of the new DX225LCA, DX300LCA and DX340LCA models and is due to be completed by the end of 2013.

The new DX480LCA and DX520LCA excavators are designed to be leaders in their respective weight classes.  The DX480LCA model is a very powerful machine with extra reach and stability, allowing it to accomplish long cycles and heavy pulling work with ease.

The DX520LCA model offers exceptional stability and unmatched lifting capabilities.  This is a mass excavation machine fitted with an extra heavy counterweight and a short front end to deliver more breakout force for really tough digging jobs.

Both new excavators are powered by the Doosan DE12TIS 6-cylinder air to air intercooler Tier II compliant diesel engine with a displacement of 11 l, developing 238 kW (318 HP) of power at 2000 RPM using a mechanical injection system.

The latter ensures the engine provides both maximum power and greater torque, whilst at the same time reducing emissions.  Owing to the incorporation of a new travel motor, both machines deliver a massive tractive effort of 37.6 tonne.  Bucket and dipper stick breakout forces have also increased, together with a significant increase in the hydraulic flow from the pumps to 2 x 360 litres/min.

Replacing the previous SOLAR range machines, all the LCA new generation machines share a common design particularly suited to the specific needs of the Middle East and African markets, combining high robustness with a number of important new functionalities and technical improvements.

The operating weight of the new DX480LCA excavator varies from 48.4 to 50.2 tonne, depending on the configuration while that for the DX520LCA varies from 51.1 to 52.9 tonne.  

In its standard configuration, the DX480LCA model offers a bucket capacity ranging from 1.71 to 2.86 m3, a maximum digging depth of 7810 mm, a maximum digging reach of 12120 mm and a maximum digging height of 11080 mm.

The standard version of the DX520LCA excavator offers a bucket capacity from 0.93 to 3.6 m3, a maximum digging depth of 6770 mm, a maximum reach of 10750 mm and a maximum digging height of 9600 mm.

Selected via the new LCD colour display panel in the cab, there is a choice of three operating modes for the new excavators: Power, Standard and the Economy mode, allowing the operator to match the output to the work being carried out, ensuring a considerable reduction in fuel consumption.

Elsewhere in the cab, the space for the operator has been substantially increased, while the comfort, seat and joystick controls have all been improved.  All LCA machines are available as standard with a new automatically adjusting air conditioning system offering a 20 per cent greater cooling capacity with five aeration modes.

As an option, the DX520LCA excavator is available in a super long reach version (SLR) offering a reach of almost 20 metres. – TradeArabia News Service