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

  • Hitachi revamps excavators to boost performance
    January 15, 2016
    Hitachi Construction Machinery (Europe) says that its new ZX350LC-6 excavator offers durability and efficiency The machine comes with added protection for key components and is said to offer reliability and high availability. Enlarged track guards reduce potential damage to track links. The front attachment’s durability has been enhanced by HN bushings to strengthen the brackets on the boom end and foot, and reinforced resin thrust plates on the boom. The 210kW Zaxis-6 medium excavator incorporates hi
  • Volvo’s L45H and L50H are fully loaded for all-round performance
    March 16, 2016
    The new L45H and L50H wheel loaders from Volvo Construction Equipment are well balanced machines, built to a solid design that ensures the strongest performance even in confined jobsites. The H-series wheel loaders have Volvo’s Torque Parallel (TP) linkage to deliver high breakout torque and excellent parallel movement throughout the lifting range. A long wheel base, low center of gravity and good weight distribution give the machine superior stability on rough and uneven terrain. A robust, compact d
  • Caterpillar’s broad range for China
    November 21, 2018
    Caterpillar is offering a broad range of new machines in China. The company has an array of new general construction, road construction and SEM-branded equipment. The company has 11 hydraulic excavator models, featuring both wheeled and tracked undercarriages. These range from the 313D2, with a maximum operating weight of 14.6tonnes, to the 390F L with its maximum operating weight of 96.275tonnes. Seven of the excavators, the 330, 330 GC, 336, 336 GC, 345 GC, 320 and 323, are Cat Next Generation models,
  • Cat's new mini excavators
    February 7, 2012
    The new Caterpillar D Series mini hydraulic excavators, (303.5D CR, 304D CR, 305D CR and 305.5D CR) are said to be powerful, versatile, compact-radius machines that work comfortably in confined spaces and build on the quality design and reliability of their C Series predecessors (303C CR, 303.5C CR, 304C CR and 305C CR). With model designations closely reflecting their operating weights (3.5-5.5tonnes), the new machines feature enhanced stability for greater productivity, a redesigned work-tool coupler, loa