Press releases

17/04/2013

Doosan Aims for Increased Share of 14-16 Tonne Excavator Market With Launch of new DX140LC-3 and DX160LC-3 Crawler Models

New DX140LC-3

Doosan Construction Equipment is aiming for an increased share of the dynamic 14 to 16 tonne crawler excavator market with the launch of the company’s new Stage IIIB compliant DX140LC-3 and DX160LC-3 models.

Higher Power and Fuel Efficiency

The new DX140LC-3 and DX160LC-3 crawler excavators are powered by the Doosan DL06K ‘common rail’ 6-cylinder turbocharged diesel engine meeting Stage IIIB engine emission regulations through the use of EGR (Exhaust Gas Recirculation) and Diesel Particulate Filter (DPF) after-treatment technologies.

The engine has a displacement of 5890 cm³ and delivers 15% more power [82 kW (109 HP) @ 1850 RPM (SAE J1995)] than that in the previous Stage IIIA models.  The engine also delivers 11% more torque (49.5 kgf.m) in the DX160LC-3 model.  Factory tests show a reduction of up to 17.5% in fuel consumption, depending on the operating mode selected and the work being undertaken.

Contributing to the overall reduction in fuel consumption is the improved cooling efficiency and the installation of a new fan clutch with electrically controlled fan speed.  The latter is dictated by the coolant, hydraulic oil and cooled charged air temperatures and target engine speeds; and the electrically controlled fan speed results in much lower fan noise and better fuel efficiency.
 
In addition, a new ECO Gauge on the control panel also helps the operator to lower fuel consumption by providing real time monitoring of fuel rate and actual engine-percent load.  Two new operating modes (P+ mode: Power Plus and L: Lifting) also improve controllability and efficiency with additional sensors which further allow owners/operators to optimise management of pump/engine/main control valve according to their needs.

To increase performance in rough terrain conditions, the drawbar pull has been increased by 5% in the DX140LC-3 model and by 34% in the DX160LC-3 excavator, while swing speed and torque have been increased by up to 12% on both models.

By incorporating these substantial improvements and many others including those below, the new DX140LC-3 and DX160LC-3 crawler excavators are designed to exceed customer expectations for productivity, fuel efficiency, comfort, reliability, durability and reduced operating costs.  Both new models are ideal for all types of trenching, digging, breaking, levelling, materials handling, general drainage, landscaping and road maintenance applications.  The new DX140LC-3 and DX160LC-3 models will therefore appeal to contractors, owner/operators and rental companies looking to increase their profits and return on investment.

Increased Operator Comfort 

The new ROPS and OPG certified cab offers more space (+6%) for the operator and several convenient features such as direct control through the joysticks, which have new proportional thumb wheel switches and integrated buttons to provide precise, proportional control of attachments.  New highly responsive joystick controls improve the controllability and productivity of the machine.

A new 7-inch colour high quality visual control console offers an attractive display and excellent functionality.  All functions can be controlled both from the instrument panel as well as via a new jog/shuttle control next to the joystick, a feature exclusive to Doosan excavators.  A new function allowing the operator to select and set hydraulic flow and pressure for attachments, with several preset positions, is a standard feature. The control panel offers a new ergonomic layout with the most used switches located within easy reach on the right hand console. 

The windows on the right-hand side of the cab have been enlarged, giving improved visibility to the right side of the machine.

A new high quality, heated air suspension seat can slide forwards or backwards by 160 mm, together with the right and left hand control stands.  Height and lumbar adjustments allow the operator to adjust the seat for optimum comfort.  A new cab suspension system cuts vibration by 20% and reduces the sound level in the cab to just 70 dBA. 

The cab is pressurised to prevent particles from entering the cab.  Other standard features include fully automatic climate control, a USB port to play music and videos, and more storage compartments for paperwork and other items.  Lighting capability has been increased by 100% to enhance working at night.  A side camera is also available as a safety option. 

Durability and Serviceability

The new DX140LC-3 and DX160LC-3 crawler excavators have a more robust undercarriage with reinforced components, including track links, track springs and sprockets.  The boom and arm have been strengthened by increasing the metal thickness at critical points and using reinforced bushings. 

The engine bonnet is split into several parts to improve serviceability, whilst components such as filters, valves and batteries are all within easy reach for service work. 

As well as offering more standard features than other excavators of their size on the market, there is an expanded choice of options for both models.  These include a floating boom which is particularly useful in loading cycle and breaking work; a inside cab microphone for increased safety; a straight travel pedal which is a must when trenching or travelling a long distance; an engine coolant heater for use in very cold areas; a dual pump flow combination for attachments requiring very high hydraulic output and 500 mm rubber pads (DX140LC-3 model only) for reducing damaging to asphalt surfaces on urban roads.

The DX140LC-3 excavator is available as standard with a 2.5 m width undercariage and can be combined with monobloc or optional articulated front working equipment and different sizes of dozer blade and arm options.

The DX160LC-3 model can be supplied with either standard (2.8 m width) or narrow tracks (2.5 m width); monobloc or articulated front working equipment; different sizes of dozer blades and arms and a high track undercarriage offering a higher ground clearance for work in, for example, forests, swamp land, recycling and demolition.

 
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