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Humberside Aggregates stay loyal to Doosan brand

Doosan DA40-5 dumptruck

Yorkshire quarry operator adds new DA40-5 articulated dumptruck to growing Doosan equipment fleet

HUMBERSIDE Aggregates have taken delivery of a new Doosan DA40-5 articulated dumptruck (ADT) for use at their North Cave Quarry, in East Yorkshire, maintaining a long tradition of operating Doosan construction equipment.

The DA40-5 ADT is now part of three generations of Doosan machines, mostly purchased over the last 10 years, operating at the quarry. The Stage IV-compliant machine is working alongside four Doosan crawler excavators (DX530LC-3, DX420LC-3, DX300LC-3 and DX225LC-3) and seven Doosan wheel loaders, including the DL420-3, DL450-3 and DL450-5 units.


Filtermech Plant of Wakefield, the local authorized dealers in the region, supplied all of the Doosan equipment.

‘We actually had four generations of Doosan equipment until recently, but Filtermech took the Daewoo Mega 500 wheel loader back, which was the first machine I had bought from them over 10 years ago when we moved from another brand to Doosan Daewoo,’ said Alan Simmester, operation director for Humberside Aggregates.

The design of the new DA40-5 ADT is said to go far beyond just meeting the latest Stage IV/Tier 4 Final emission standards and incorporates many additional features and product improvements to establish a new benchmark in load carrying performance, fuel efficiency, enhanced controllability and operator comfort, together with improved reliability, durability and reduced maintenance and servicing costs.

Mr Simmester continued: ‘I have been very impressed with the performance of the DA40-5 ADT since its arrival. Doosan have developed the design from the Moxy days using only the best components on the market. The truck works closely with the 52-tonne DX530LC-3 excavator, which is our main face machine.

‘The boom and dipper on the machine have been lengthened to match the quarry face, to give a consistent mix of material which is loaded into the DA40-5 for stockpiling before being loaded again into our washing and processing plant by the Doosan wheel loaders.’

As with all Doosan ADTs, the DA40-5 model features an articulation hinge positioned behind the turning ring to provide equal weight distribution to the front axle even during maximum steer articulation. This, together with a free-swinging rear tandem bogie, ensures equal distribution of weight to each wheel and delivers permanent six-wheel contact and drive for equal power distribution and optimum performance on difficult terrain.

Collectively, the forward turning point, the special tandem bogie and the sloping rear frame are said to result in ‘best in class’ rough- and soft-terrain capabilities and avoid the need for electronic aids such as traction control.

The DA40-5 articulated dumptruck is powered by a 493hp Scania DC13 diesel engine that meets Stage IV/Tier 4 Final emission regulations through the use of both selective catalytic reduction and exhaust gas recirculation technologies. The machine also features a ZF EP transmission, improving the transfer of power from the engine to the wheels for superior traction.

Doosan say when this is coupled with the truck’s enhanced rear differential system, which reduces engine rev/min and further increases machine durability, customers can achieve improved cost-per-tonne across their operations.

Moreover, the DA40-5’s body capacity has been increased to 24.4 cubic metres and the payload has been boosted to 40 tonnes without tailgate, an increase of more than 15% over the payload of the previous MT41 model from Doosan.

In both the DA40-5 and the smaller 30-tonne DA30-5 model, the higher speeds and payloads contribute to reduced cost-per-tonne rates, allowing customers to increase profits from their mining, quarrying or earthmoving operations.


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