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New Doosan Dump Truck features increase safety & productivity

Doosan Construction Equipment has announced several new developments in the company’s DA30 and DA40 articulated dump trucks (ADTs) aimed at increasing safety and productivity for quarrying, mining, construction and many other hauling applications.

The Doosan range of ADTs features an articulation hinge positioned behind the turning ring to provide equal weight distribution even during maximum turning and ensure full contact between the tyres and the road surface. The trucks also have an exceptionally flexible and agile undercarriage incorporating a free-swinging rear tandem bogie that further guarantees permanent 6-wheel drive for equal power distribution and excellent driving performance in difficult terrain. The sloping body design also enhances the stability of the trucks thanks to its low centre of gravity and allows fast and easy tipping, even in the most demanding conditions.

The combination of 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.

New Features to Increase Safety
With this unique mixture of features, the Doosan range of ADTs could already be claimed to be the safest on the market. But the new Levelling Meter developed by Doosan to meet increased safety requirements in the quarry industry will help to raise the safety bar even further.

The system utilises rotation sensors installed on the front and body of the truck, which provide a continuous stream of data which is converted into clear graphical readouts on the control panel giving the status to the driver, telling them whether or not it is safe to drive the truck forward and to stop if there is a danger of turning the body of the truck over.

Other safety features being added by Doosan are Lexan headlight guards providing improved protection when working on applications in poor light or at night. These systems have long lifetime components requiring less maintenance. The company is also offering a limited maximum speed option for improved safety particularly in the quarrying and mining industries.

To complement the safety features of Doosan ADTs, the company has developed new systems to provide immediate fault detection in several languages. Providing immediate fault indication via larger symbols on the control monitor for greater visibility, the new fault detection systems also offer full trouble shooting to reduce downtime for the end user. In addition, the fault detection systems have easy to update software to safeguard future truck performance.

New Payload and Cycle Count Meter
Doosan has developed a new Payload and Cycle Count Meter for the DA30 and DA40 ADTs. The new system utilises load sensors on the front and body sections of the machine which provide an immediate readout on the cab’s control monitor of the payload with an accuracy of +/- 5%. The load is registered and counted in the Vehicle Control Unit if the weighing value is at least 3.0 tonne.

To avoid more than one registration per load the next registration is not possible before the vehicle has travelled more than 50 m or after a timeout of 3 minutes.

The payload is recorded on the colour monitor under the following columns:
Total = Total load carried
Trip A = Load carried over a certain period eg 1 day (as specified by the operator)
Trip B = Load carried over a certain period eg 1 particular haul (as specified by the operator)

The data can be downloaded to a USB memory stick or sent as an attachment by GPS. The data is in Wordpad format and can be easily identified and tracked by assigning it with a unit serial number.

New Fuel Saving Economy Mode
The new Economy mode developed by Doosan controls the engine rated speed on the company’s DA range ADTs automatically when it is activated. It is ideal for fuel saving on long distance haul roads. The new improved powertrain and electronics on the DA30 and DA40 models allows Doosan to decrease the rated speed for the engine, and work with optimal power and torque to further improve fuel efficiency.

The new DA models bring together well over 40 years of expertise in the ADT market and are optimised for extreme off-road performance using quality components from world-class suppliers such as Scania, ZF, NAF and Parker.

Operator Comfort and Convenience
Both ADTs have a completely new cab providing more space and improved visibility for the operator, ‘best in class’ noise levels and a fully automatic climate control system. For easier operation, Doosan has introduced new electronic systems and simplified fingertip controls with a digital display of all desired machine functions.

For routine maintenance and service, the cab can be tilted backwards to provide easy access to components. Easier service access and longer service intervals result in lower operating costs. A fully automatic central greasing system and rear view camera are standard.

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