New features allow DA30 and DA40 ADTs to thrive in the most punishing outside temperatures.
NEW versions of Doosan’s DA30 and DA40 articulated dump trucks have been launched.
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 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.
The ‘best-in-class’ fuel consumption of the new Doosan ADTs is down to a combination of features including new Scania Selective Catalytic Reduction (SCR) and Exhaust Gas Recirculation (ECR) diesel engines and a new 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 new Doosan ADT range.
The ADTs are powered by Scania DC9 276 kW (370 HP) and DC13 368 kW (493 HP) diesel engines, respectively, meeting the Stage IV/Tier 4 Final emission regulations through the use of both SCR and EGR technologies, with an electronic engine brake system, one of four brake systems on the trucks.
Specifically designed by ZF for use on ADTs, the new ZF EP countershaft transmission provides eight forward speeds [with a top speed of 55 km/h (34 mph)] and four reverse speeds. In the DA30 and DA40 models, the front differential is mounted directly onto the transmission, so there is no driveline that needs greasing and reducing the overall length of the machine for better weight distribution and a tighter turning circle. With smaller equal gear steps between gears, and a higher overall gear spread (eight forward gears), the transmission works optimally with the engine for better fuel efficiency.
The ROPS/FOPS cab has been designed with simplicity of use and operator comfort in mind.
One of the most spacious on the market, it has ample room for a trainer seat, cool box and cup holder. With a noise level of only 72 dBA, it is also one of the quietest cabs on the market. And the easy-to-use power steering with orbitrol valve amplifies oil flow to both steering cylinders, reducing operator fatigue by making steering light, reactive and easy.