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Cumbria civils firm buys UK's first Doosan stage IV compliant excavator

27 Oct 15 Cumbria civil engineering contractor Grant has become the first UK firm to buy Doosan's Stage IV compliant DX300LC-5 excavator.

The machine was supplied by Carlisle-based Doosan and Bobcat dealer, Lloyd. It adds to Grant's existing fleet of eight Doosan excavators.

Grant specialises in large-scale water projects, often in remote locations such as the Scottish Highlands and the Lake District, with clients including United Utilities and Scottish Water.  

The DX300LC-5 is being put through its paces on two adjoining hydro schemes at Eas a Ghaill (EAG) and Lochy, near Fort William. Grant is working as the specialist pipeline subcontractor for Gilkes Energy in conjunction with Global Infrastructure. 

The DX300LC-5 will be excavating trenches for laying pipe, breaking rocks and even operating as a crane to lift pipes and other equipment. The project is highly machine-intensive, requiring six crew members, with the new excavator working in tandem with an older Doosan 30-tonne model.

The pipe easement activities are extensive, with the EAG development running for 4,050m using 700mm-diameter ductile iron pipes, and the Lochy scheme requiring 3,500m of 1500 mm glass-reinforced pipes in very deep peat.  

The project is expected to be completed in spring 2016.

DX300LC-5 specification

The new DX300LC-5 is powered by the Scania DC9 5-cylinder diesel engine, with an output of 202 kW of power at 1800 rpm, providing a huge 27% increase in engine power and a massive 30% boost in torque over the Stage IIIB model.  

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The engine meets Stage IV emission regulations without the need of a diesel particulate filter (DPF), through the use of cooled exhaust gas recirculation (EGR) and selective catalyst reduction (SCR) after-treatment technologies. 

Bucket, arm and swing forces in the DX300LC-5 remain the same as the Stage IIIB model, but the drawbar pull has been sharply increased by 8%.  The operating weight of the DX300LC-5 has increased by 900 kg, resulting in increases in lifting capacities of 1% over the front and 5% over the side.  

Doosan estimates the new machine will give reductions in fuel consumption amounting to an average of 10% compared to the Stage IIIB machine. 

The DX300LC-5 has an operating weight of 30.9 tonne, with a bucket breakout force of 20.1 tonne (ISO) and an arm breakout force of 13.9 tonne (ISO).  Maximum digging reach is 10.73 m at ground level in the standard configuration and the maximum digging depth is 7.31 m.

With the addition of telematics to the new model, Grant is able to gain remote access to the status of the machine’s operational data, from location tracking to fuel consumption and usage. Lloyd is also able to benefit from this functionality, with key component performance information available in real time to identify any servicing or preventative requirements.  This means that Lloyd's mobile servicing team can identify any potential issues in advance and respond accordingly. 

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