Twist reduced of the voladizo, greater power and productivity in spaces reduced

Doosan Construction Equipment launches the new excavator of caterpillars DX140LCR-3 of 15,3 tonnes with twist reduced of the voladizo and satisfied with the phase IIIB. The new model satisfies the increasing demand of machines with little radio, like alternative to the conventional models, for his use in urban works, channelling, roads, railway industrys, bridges and other works of construction in spaces reduced.

Designed to surpass the expectations of the customers regarding productivity, comfort, reliability, durability and low operative costs. The new excavator DX140LCR-3 is ideal for engineers of ways, contractors, companies of supplies, companies for hire, paisajistas and many others possible customers that look for to increase the profits and rentabilizar to the maximum his investment.

The excavator DX140LC-3 is instrumented with the engine diesel turboalimentado and with common rail Cummins QSB 4.5, endowed of a catalyst of oxidation diesel without maintenance (DOC) to fulfil with the requirements of the rule on broadcasts of motors Stage IIIB.

This catalyst, which is free of maintenance, uses a revestimiento catalytic and a sustrato only created for this generation of motors. It carries out the passive oxidation of present particles in the gases of leakage with the simplicity of a small flow through the catalyst. Doosan Has been able to use the new engine Cummins to reach the levels of broadcasts of the Phase IIIB without engaging the transitory answer of the engine or the reliability of the factors of load higher even in the most demanding applications. The system of passive catalyst is simpler, more effective with the treatment of gases of leakage in this range of power and offers the lower cost by operation, as well as that lacks the need of interaction by part of the operator. It offers luminous indicators, regeneration, burners or a filter of particles diesel.

The engine works to 2.200 rpm, surrenders 11% more than power [81 kW (108 CV) (SAE J1995)] and produces 10% more than pair engine (49,8 kgf.m) Regarding the previous model DX140LCR, satisfied with the phase IIIA, what represents an increase of 5% of the relation between productivity (m³/h) and consumption of fuel (l/h), depending of the way of operation selected and of the work that do .

The strength of the balancín and of the ladle has increased until in 8%, whereas the speed of trip can arrive now to 3,2 and 5,3 km/h in first and in second, respectively. To consequence of the incorporation of a counterweight 400 heavier kg (3.500 kg), the capacity of elevation of the DX140LCR-3 also has increased 7%.

The global reduction of consumption of fuel is related with the improvement of the efficiency of refrigeration, consequence of the setting of a new fan with embrague, whose speed is controlled electronically. Basing in the temperature of the liquid refrigerante, of the hydraulics oil and the one of the air of admission as well as the diet of twist selected for the engine, the speed of the fan controls electronically resulting in a lot of lower noise of the fan and better efficiency of fuel.

The new cabin with certification ROPS and OPG offers more space for the operator and several useful characteristics, like the direct control by means of the joysticks, that have new switches giratorios proportional and integrated buttons to allow a handle precise of the implementos.

A new console of control includes of series a new control for implementos that allows that the operator register and select parameters of pressesure and hydraulics discharge to handle until 10 implementos different.

Between the characteristics of series are the system regulable of air conditioned and a new seat with pneumatics suspension calefactado of big quality.

The new excavator of caterpillars DX140LC-3 has an inferior train more robust with components reinforced, such as the toothed wheels or the links and docks of the caterpillars. The feather and the balancín also have reinforced by means of the increase of the thickness of the metal in critical points and the use of casquillos reinforced.

Has loaned special attention to improve the access to the components during the maintenance, by what can arrive to the engine, the bomb, the filters, the radiator, the valves and the batteries easily through several compartments delivered by the machine.

The excavator DX140LCR-3 offers with an arm type monobloque or articulated (optional); other options are the leaf dózer or the swearwords of rubber of 500 mm for the caterpillars. The swearwords have by object reduce the deterioration of the asphalt in urban works.