Hæhre Entreprenør AS has purchased 10 new Doosan DA40 Stage IV/Tier 4 Final compliant articulated dump trucks (ADTs) from Doosan Bobcat AS.
The new DA40 trucks will replace five Doosan MT41 ADTs, each of which has provided between 12-15 000 hours of continuous hauling work on Hæhre projects throughout Norway.
Lars Hæhre, Managing Director of Hæhre Entreprenør AS, based in Vikersund in Norway, commented: “The high productivity of the DA40 ADTs we previously purchased has been very pleasing and was obviously a key factor in the decision to buy more DA40 machines from Doosan Bobcat AS. The existing DA40s have provided excellent reliability and fuel efficiency in operation, with a design that ensures that all six wheels are always in contact with the ground for unbeatable stability, traction and ground clearance on the uneven terrain we work on in Norway.”
Roy Haaker, Product Line Director for the Doosan ADT and wheel loader ranges in Europe, added: “We are delighted with the new order for 10 DA40s, which reflects the confidence shown by Hæhre in the Doosan ADT range. Hæhre has purchased over 80 ADTs from Moxy and Doosan since the company was formed in 1974 and with so much experience in the market, Hæhre has developed its own specifications for ADTs which the new machines will meet, with tailor-made features such as LED lights, reinforced body, protected driveline, full winter package and modified tailgates.”
The DA40 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 guarantees permanent 6-wheel contact and drive for equal power distribution and excellent performance on difficult terrain.
The ‘best-in-class’ fuel consumption of the Doosan DA40 ADT is down to a combination of features including the Scania DC13 368 kW (493 HP) Selective Catalytic Reduction (SCR) and Exhaust Gas Recirculation (ECR) diesel engine and the ZF EP transmission, improving the transfer of power from the engine to the wheels for outstanding traction, with an electronic engine brake system, one of four brake systems on the trucks.
Specifically designed by ZF for use on ADTs, the ZF EP countershaft transmission with automatic retarder provides eight forward speeds and four reverse speeds. In the DA40 model, the front differential is mounted directly onto the transmission, so there is no driveline that requires greasing. With smaller equal gear steps between gears, and a higher overall gear spread, the transmission works optimally with the engine for better fuel efficiency.
Edited from press release by Angharad Lock