New Doosan Stage V compliant articulated dump trucks

By MEq May 28, 2019 16:02

Doosan Construction Equipment presented two new Stage V compliant articulated dump trucks (ADTs) for the first time at Bauma 2019. The new DA30 and DA45 ADTs will replace the previous DA30-5 and DA40-5 Stage IV models, respectively. The DA30 has a payload of 28 tonne, while that of the DA45 is 41 tonne.

The DA30 is powered by the new Scania Stage V compliant DC09 9-liter diesel engine providing 276 kW (375 HP) of power. The DA45 is driven by the new Scania Stage V DC13 13-liter diesel engine with an output of 368 kW (500 HP). The new Scania engines have undergone two years of very intensive testing in exacting construction and mining environments and have passed with flying colors. Whilst the core of the Scania engines, which has been responsible for their exceptional reliability, has not changed, the main difference in the new engines from their predecessors is the improved after-treatment system.

New features
In 2018, the DA30 ADT was upgraded with a range of features including a new cab, a new self-leveling front suspension and a new tandem bogie system which are all incorporated in the new Stage V model. A similar process has been applied in the new DA45 Stage V machine, with a new cab and a semi-leveling front suspension that adjusts itself independently depending on the operating conditions to ensure a comfortable working environment for the operator.

As well as these changes, the new Stage V models offer many more features – one of the most eye-catching is a new design for the front frame and bonnet components on the trucks, created by the Doosan Design Team in accordance with the latest trends in the market. The new dynamic look this gives the Stage V ADTs reflects the high performance, power, and robustness of the Doosan ADT range and aligns even more closely with rest of the market-leading range of construction equipment from Doosan.

Together with the visual changes, there are a number of functional changes on the new ADTs which improve safety, comfort and serviceability. These include a new positioning of the diesel and AdBlue tanks. The latter ones are now much lower than before, allowing the operator to fill both tanks whilst standing next to the machine (‘ground level filling’).

The greasing system has also been relocated to make it easily accessible from ground level. Space has been provided above the automatic lubrication system (which is standard) for additional grease cartridges and a filling pump. In addition, the transmission filters have been installed close to the greasing system, where they are also very easy to access. All of these systems are protected to ensure that any excess drops of oil/grease are collected and can be removed during service and maintenance.

Both of the new machines are equipped with additional external round handrails to prevent accidents and hazardous situations. Inside the cab, there is a new additional grip on the right-hand side for increased safety for the operator. The electronic and hydraulic systems in the new trucks have also been upgraded to offer improved performance with extended functionality and new technology.

The state-of-the-art designs and developments in the new Stage V DA30 and DA45 ADTs have resulted from intensive market analysis, customer visits, interviews with operators and additional feedback gathered by the Doosan ADT Product and R&D teams at the company’s ADT plant located in Elnesvågen, near Molde in Norway. With all of these advanced features incorporated, the new Doosan Stage V ADTs establish a unique benchmark in load carrying performance, fuel efficiency, enhanced controllability, and high operator comfort, together with improved reliability, durability, and reduced maintenance and servicing costs.

Best-in-class rough and soft terrain performance
Like all Doosan ADTs, the new models feature an articulation hinge positioned behind the turning ring to provide equal weight distribution to the front axle even during maximum steer articulation. This combined with a free-swinging rear tandem bogie ensures equal distribution of weight to each wheel and guarantees permanent 6-wheel contact and drive for equal power distribution and excellent performance particularly on difficult terrains such as soft ground, uneven surfaces, very steep slopes, tight turns or a combination of all of these difficult conditions.

Collectively, the forward turning point, the unique tandem bogie, and the sloping rear frame result in ‘best in class’ rough and soft terrain capabilities. The unique body shape and sloping frame ensure equal load distribution on all the wheels making these machines the best haulers for soft terrain work. The design of the articulation also provides equal load distribution on the wheels on both the left and right-hand side when turning, which is very important for the traction and stability of the machines.