Atlas Copco has upgraded its MT42 mine truck with a newly designed box.
The manufacturer first released its initial truck in 2009, and has now be redesigned with a new tailgate and engine alternative.
The new box is made with high strength steel, and has the same physical envelope size as the previous model but with a reduced dump height.
"The geometry is new with optimized internal plate angles, making it easier for material to be released," Atlas Copco said.
The new tailgate also acts as a spill guard that automatically folds down before dumping without affecting ground clearance or visibility for the rear view camera.
"The gate is hydraulically operated and the status of the gate’s position is presented for the operator on the display in the cabin."
Its engine has also be re-imagined, with a new Cummins QSX15 alternative, that meets the exhaust emissions requirements of both EPA Tier 4 final and EU stage IV levels.
"Compared to Tier 3 emission levels the new engine represents a 90 percent reduction for both PM (particulate matter) and NOx (nitrogen oxides)," Atlas Copco says.
"The engine installation is fully integrated into the design of the Minetruck MT42 and the Atlas Copco’s Rig Control System, RCS. As an example, the status of the particulate filter and the level of the diesel exhaust fluid tank can be monitored on the display in the cabin."
The new MT42 also has an optional electromagnetic retarder braking system.
"When hauling downhill, the retarder creates resistance and retardation, providing wear-free braking.
"Under the right conditions it can also allow for a higher speed, resulting in increased productivity. This solution can be especially useful in applications with a high degree of haulage downhill with load, such as haulage of waste rock fill or in cut and fill applications."
The new truck will hit the market from 2015.