26 April 2018, 13:30
At Intermat 2018, Doosan Construction Equipment will be presenting a new version of the company’s DA30 30 tonne class Articulated Dump Truck (ADT). The changes in the new DA30 ADT model are signified by a new colour scheme for the machine that also aligns it with other products in the Doosan Heavy range. Most of the changes are aimed at enhancing operator comfort and the controllability of the machine, but there are also changes in the driveline and electrical systems.
New Hydro-Gas Self-levelling Suspension
The most important development is in the suspension of the DA30 which is being upgraded to a hydro-gas self-levelling system to provide outstanding performance and superior shock absorption for better driving comfort, especially when the truck is being driven when it is empty. To complement this, the operator will now benefit from a Grammer Actimo XXL seat in the cab as standard with its own independent low-frequency pneumatic and wide scissors-type suspension.
The Grammer seat is not the only change in the new state-of-art operator’s cab on the DA30 which has been redesigned to provide better ergonomics and more operator comfort. The dashboard has a completely new layout and soft-touch material composition that is easier to clean and features a new display as well as a high quality finish and appearance.
The cab also offers new safety and performance functions with a new control panel, a new easy-to-use lever for retarder steering, a new more precise brake system for increased sensitivity and performance, an extra hand grip on the right hand side, a USB charger and a 12V/24V power socket, together with more convenient compartment storage and electrically adjustable mirrors as standard.
On the outside of the cab, a new all-round hand grip rail has been installed for improved safety for moving round the outside of machine for cleaning and other tasks. Doosan has also introduced a new position and solution for the power cut off switch.
According to Doosan, in the new version of the DA30, there will also be lower maintenance costs involved as there are fewer different oil types in the driveline and increased intervals for transmission oil change.
With these new features incorporated, the DA30 establishes 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.
Like all Doosan ADTs, the DA30 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 guarantees permanent 6-wheel contact and drive for equal power distribution and excellent performance on difficult terrain.
Collectively, the forward turning point, the unique tandem bogie and the sloping rear frame results in ‘best in class’ rough and soft terrain capabilities and avoids the need for electronic aids such as traction control.
Unmatched Fuel Consumption
The ‘best-in-class’ fuel consumption of Doosan ADTs is down to a combination of features including the Scania diesel engine and a ZF EP transmission, improving the transfer of power from the engine to the wheels for outstanding traction. When this is coupled with the enhanced rear differential system which reduces engine rpm and further increases machine durability, customers are ensured of an improved cost per tonne carried with the Doosan ADT range.
The Doosan DA30 is powered by the Scania DC9 276 kW (370 HP) diesel engine, meeting the Stage IV/Tier 4 Final emission regulations through the use of both Selective Catalytic Reduction (SCR) and Exhaust Gas Recirculation (EGR) technologies, with an electronic engine brake system, one of four brake systems on the trucks. Doosan’s Stage IV/Tier 4 Final ADTs do not need a diesel particle filter (DPF) to meet the emission regulations.
Source: Doosan Construction Equipment