With its operating weights varying from 18.4 to 20.3tonnes, the DX190W-3 is powered by the well-proven Stage IIIB compliant Doosan DL06KB 6-cylinder ‘common rail’ diesel engine, fitted with a waste gate turbocharger with intercooler as standard and developing 129.4kW at 1,900RPM. The DX190W-3 model is said by Doosan to offer more power than other machines in this class. This is combined with a huge hydraulic capacity to produce what Doosan claims is the highest arm and bucket forces together with the highest traction force on the market.
Doosan says factory tests show that the DX190W-3 offers an up to 12% reduction in fuel consumption, depending on the mode selected and the work being done. A new ECO Gauge on the control panel monitors in real time the rate of fuel consumption and actual engine percentage load to help guide the operator to select the best operating mode for fuel economy. Two new operating modes (P+ mode: Power Plus and L: Lifting) improve controllability and efficiency. The Lifting mode is intended to facilitate the handling of heavy objects and materials on construction sites, a feature especially useful when working in narrow and confined spaces.
Three idling steps are now available, the first offering automatic idling to 1100rpm after three seconds of no machine use; a low idle which can be set as low as 800rpm and a One Touch Deceleration switch on the left joystick, giving the operator idling whenever they desire. These idling capabilities and other features such as reduced fan operations owing to a new electronic clutch, contribute to the high fuel efficiency of the new excavator.
The DX190W-3 wheeled excavator’s new ROPS and OPG certified cab offers 6% more space for the operator, while a new cab suspension system helps to cut vibration by 20%. Combined with a new cooling and fan system, this has helped to reduce the noise level in the cab from 74.9 to 71dBA. The excavator also features as standard a fully adjustable heated air suspension Seat designed to reduce operator fatigue.
The new DX190W-3 is said to offer a greatly expanded choice of options, including a new floating boom system for easy levelling and finishing work. For heavy-duty applications, there is a dual pump option providing extra flow for high flow attachments. Other options available include monobloc or articulated front working equipment, dozer blades, outriggers, cradle support, auxiliary hydraulic lines, an additional tool box, an air gun and compressor for cleaning and a microphone/speaker for increased safety on worksites.
