Increased versatility is offered by the new Doosan wheeled excavators
High versatility is claimed for the new Doosan wheeled excavators
Aimed at the 14tonne and 16tonne classes, the new Doosan DX140W-3 and DX160W-3 wheeled excavators are said to offer major performance gains over the models being replaced. As with the firm’s new crawler excavators, new cabs provide a more comfortable working environment, with improved controls and ergonomics and in-cab noise levels that are reduced by 5dBA. Both machines are powered by the proven Doosan DL06KB diesel, which delivers a 2% increase in power to 102kW and a 12% increase in torque over the previous engine. The engines meet Stage IIIB/Tier 4 Interim emission regulations and are equipped with exhaust gas recirculation (EGR) and diesel particulate filter (DPF) after-treatment. Other gains in performance are claimed too, compared to the previous generation machines. The main pump flow has increased by 8% and system pressure has risen to 350-370 kg/cm2. Bucket forces have been increased by 16% and arm forces by 6-16%, while lifting capacities have been boosted by 3-12% over the front of the excavators. The machines offer a 10% increase in traction force as well as a 9% reduction in fuel consumption in some operating cycles.