January 18, 2012
Doosan Infracore Construction Equipment says its new DA40 articulated dump truck is the first in a new family of Doosan ADTs offering increased engine power and torque, higher payloads, lower fuel consumption, enhanced operator comfort, and faster travel speeds.
The truck is powered by a six-cylinder interim Tier 4-compliant diesel engine with a gross power output of 500 horsepower at 2,100 rpm, offering a 10-percent increase in engine power and an 8-percent decrease in fuel consumption compared to previous MT41 models. Said to be “best in class” in the ADT market, the truck offers a 22-percent increase in gross torque to 1,750 pound-feet at 1,300 rpm. The new transmission offers eight forward speeds and four reverse speeds, as well as a top speed of 36 miles per hour. The truck has an increased body capacity of 31.9 cubic yards, and the payload has been boosted to 40 metric tons without a tailgate, an increase of more than 15 percent over the MT41.
Permanent six-wheel drive offers equal power distribution, while the free-swinging rear tandem bogie and special articulation system offer great driving performance in difficult terrain. A new hydro-gas front suspension ensures a smooth ride. Independent front suspension allows free movement on one side without movement on the other side, providing maximum ground contact and shock absorption. The articulation hinge is positioned behind the turning ring to provide equal weight distribution and ensure maximum front wheel contact with the ground.