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New Doosan wheel loader for Tulloch Developments

Doosan DL450-5 wheel loader

Latest DL450-5 is the lynchpin of loading operations at Staney Hill Quarry in Shetland

LERWICK-based Tulloch Developments Ltd, the largest civil and marine engineering contractors in Shetland, have purchased a new Doosan DL450-5 wheel loader from Inverurie-based Balgownie Ltd, the local authorized Doosan and Bobcat dealers.

Family-owned Tulloch Developments are using the Doosan DL450-5 wheel loader at Staney Hill Quarry, which the company has owned since 2012. The new machine has replaced a Doosan DL400 wheel loader and is being used to load and stockpile the wide range of materials produced by the quarry, including MOT Type 1, Class 6F2, drainage aggregates, concrete aggregates, hardcore and sand. The DL450-5 wheel loader is also kept busy filling the material bins used to supply the ready-mixed concrete system at the quarry.

 

Commenting on the purchase of the new Doosan DL450-5 wheel loader, George Smith, a director at Tulloch Developments, said: ‘The new machine is a lynchpin for us as it works for extensive periods in both our aggregates production area and in the ready-mixed concrete plant. The DL400 was a good performer, but I have great confidence in the benefits that the DL450-5 Stage IV machine will bring in productivity and the fuel efficiency and reliability of the new Scania engine backed by the excellent support we’ve always had from Balgownie.’

The DL450-5 is powered by the Scania DC13 6-cylinder engine producing 257kW (354hp) of power at 1,800 rev/min. Providing generous torque at low rev/min, up to a 10% reduction in fuel consumption and excellent response, the Scania DC13 engine meets Stage IV emission regulations without the need for a diesel particulate filter, through the use of cooled exhaust gas recirculation and selective catalyst reduction after-treatment technologies.

When activated, the engine Auto Idle system saves further on fuel costs by lowering the idle level from 950 to 750 rev/min – when the operator does not give any input to the steering wheel, arm and bucket for more than 10 seconds (suitable for applications where there is a lot of waiting time, such as truck loading). As in all Doosan Stage IV loaders, the Engine Auto Shut Off shuts down the machine after it has been idling for a specified amount of time (3–60 minutes, configurable by the operator via the control panel).

The new DL450-5 model is part of Doosan’s new ‘DL-5’ generation of Stage IV-compliant wheel loaders. Replacing the successful DL450-3 Stage IIIB model, this high-performance wheel loader is said to take productivity, fuel efficiency and operator comfort to the next level. With a bucket capacity of 4.5 cubic metres, the new Doosan DL450-5 wheel loader is intended to meet a wide range of material-handling needs from loading and transporting aggregate material to industrial, mining and quarrying applications.

In addition to the Scania DC13 Stage IV engine, the DL450-5 features new external styling that is common to all of the new DL-5 Stage IV wheel loader range, a new high-comfort cab, smooth and responsive hydraulics, a ZF powertrain, axle cooling and auxiliary hydraulic connections. 

 

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