Skip to main content

Doosan’s new DX140LC-3 and DX160LC-3 crawler excavators

Both machines are powered by Doosan’s DL06K ‘common rail’ six-cylinder turbocharged diesel engine, said to meet 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 5,890cm³ and is said to deliver 15% more power [82 kW @ 1850RPM] than previous Stage IIIA models. The engine also delivers 11% more torque (49.5kgf.m) in the DX160LC-3 model. Doosan said that factory tests had
June 24, 2013 Read time: 3 mins
Both machines are powered by 695 Doosan’s DL06K ‘common rail’ six-cylinder turbocharged diesel engine, said to meet 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 5,890cm³ and is said to deliver 15% more power [82 kW @ 1850RPM] than previous Stage IIIA models.  The engine also delivers 11% more torque (49.5kgf.m) in the DX160LC-3 model.  Doosan said that factory tests had shown 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-per cent 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.

The new Roll Over Protection Structure (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.  

The DX140LC-3 and DX160LC-3 crawler excavators are said to 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 by using reinforced bushings.  

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

There is an expanded choice of options for both models. These include a floating boom that is particularly useful in loading cycle and breaking work; an inside cab microphone for increased safety; and a straight travel pedal that is a must when trenching or travelling a long distance.

The DX140LC-3 excavator is available as standard with a 2.5m 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 (2.8m width) or narrow tracks (2.5m 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, recycling and demolition.

For more information on companies in this article

Related Content

  • Developments in asphalt paving machines increases competition
    April 10, 2012
    With the asphalt paving segment split broadly into two methods, American or European,. it is no surprise that manufacturers. from these countries have dominated the market for some years. An interesting development in recent times has been seen with various European firms developing asphalt pavers to suit North American needs, including BOMAG, Dynapac and Vögele. Caterpillar and Volvo by comparison both offer both European and US-style pavers, with separate model ranges that have been developed over many ye
  • Doosan’s powerful new compressor suits duties in extraction markets
    January 31, 2013
    Doosan Portable Power is offering its new large 25/280 portable compressor, which meets Stage IIIB/Tier 4 Interim emission regulations. The 25/280 portable compressor has a free air delivery of 28.3m³/min at a rated operating pressure of 25.1bar. Dual pressure regulation is a standard feature of the 25/280 compressor, allowing it to supply compressed air at operating pressures of both 25.1 or 17.2 bar. Dual pressure regulation expands the scope of applications for the 25/280 compressor which includes poweri
  • Caterpillar’s versatile, short tailswing excavator
    March 9, 2016
    Caterpillar claims that its new 25tonne compact radius excavator offers increased performance and capabilities over the firm’s earlier model in this class. The 325F is powered by a Cat C4.4 ACERT engine rated at 120kW and which meets the Tier 4 Final/Stage IV emissions requirements while the excavator also benefits from an upgraded hydraulic system. The machine has a full-size, ROPS-equipped cab said to offer safety and comfort, as well as good all-round visibility. The machine is available with technolo
  • Versatile small construction equipment
    February 9, 2012
    Smaller construction equipment offers versatile options, particularly on highway repair and maintenance projects. Patrick Smith reports. Visitors to any highway construction site across the world will see a sizeable amount of utility equipment in action carrying out a variety of tasks. Indeed, because of its smaller, more compact size, such multi-task equipment is essential when repair and maintenance projects are being carried out, particularly in urban areas where space may be limited.