Doosan displaying new Tier 4 Final equipment at CONEXPO

New excavators and wheel loaders from Doosan will be on display at CONEXPO, including new Tier 4 Final models.

Doosan New Excavatorsat Conexpo

The Doosan stand at the CONEXPO-CON/AGG Exhibition in Las Vegas, USA from March 4 to 8, 2014, will provide the launch pad for the very latest excavators, wheel loaders and articulated dump trucks from the company. The lineup of new Tier 4 Final?/Stage IV compliant machines at the Doosan Booth No. 1501 will be revealed on the first day of the show, but the Doosan booth will also feature a number of recently launched Tier 4 Interim/Stage IIIB compliant excavators and wheel loaders being shown for the first time at CONEXPO-CON/AGG, including the new DX140LCR-3 crawler excavator, the DX190W-3 wheeled excavator and the DL200-3 wheel loader.

Higher Power and Productivity

The new DX140LCR-3 excavator meets an increasing demand for reduced radius machines as an alternative to conventional models for work on urban, utility, highway, rail, bridge and other confined space construction sites. Designed to exceed customer expectations for productivity, comfort, reliability, durability and reduced operating costs, the new DX140LCR-3 excavator will appeal to civil engineers, contractors, utilities, rental companies, landscapers and many other potential customers looking for increased profits and an unbeatable return on investment.

The DX140LCR-3 excavator is powered by the Cummins QSB 4.5 common rail 4-cylinder turbocharged diesel engine featuring the latest evolution in maintenance-free Diesel Oxidation Catalyst (DOC) aftertreatment technology to meet Stage IIIB engine emission regulations. The engine runs at 2,200 rpm and delivers 11% more power [81 kW (108 hp) (SAE J1995)] and 10% more torque (49.8 kgf.m) compared to the previous Stage IIIA compliant DX140LCR model, delivering up to a 5% increase in the productivity (m3/h) to fuel consumption (l/h) ratio, depending on the operating mode selected and the work being undertaken. 

Arm and bucket forces have been increased by up to 8% along with the travel speed which can now reach 3.2 and 5.3 km/h in the low and high range, respectively. Owing to the incorporation of a 400 kg heavier counterweight (3,500 kg), the lifting capacities for the new DX140LCR-3 excavator have also been boosted by up to 7%. 

Substantial Performance Increase 

With operating weights varying from 18.4 to 20.3 tonnes, the new Doosan DX190W-3 wheeled excavator is a true 18 to 19 tonne class machine. 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 129.4 kW (174 hp) at 1,900 rpm (SAE J1349), the DX190W-3 model offers more power than other machines in this class. This is combined with a huge hydraulic capacity to produce the highest arm and bucket forces together with the highest traction force on the market.  

The new DX190W-3 wheeled excavator provides much higher performance than the Stage IIIA model: 

  • Engine power sharply increased by 9% while torque is up by 4%
  • Traction force increased by 6% while swing torque is boosted by 16%
  • Digging forces increased by 3% (bucket) and 13% (arm)
  • Lifting capacities are sharply up in both the monobloc and articulated versions; Monobloc - 3% increase over the front, 24% over the side, Articulated - 53% over the front and 22% over the side 
  • In-cab noise levels reduced to 71 dBA (from 74.9 dBA)
  • Up to 12% fuel consumption reduction

The DX190W-3 model is also a very efficient machine, with factory tests showing up to a 12% reduction in fuel consumption, depending on the mode selected and the work being done.  

High Operator Comfort

Like all Doosan new generation machines, the DL200-3 wheel loader features a new cab design offering better visibility thanks to a wider front glass section and an extended wiper blade area. Now that the reservoir for the wiper water is located on the outside of the cab, space inside has been increased, providing more foot room. The air conditioning system is regulated automatically by a temperature sensor.

A new instrument panel has an integrated VCU (vehicle control unit). The control panel has been redesigned for more convenience, allowing the operator to choose the information they wish to have displayed. Using the Main Menu, the operator has access to several functions and machine information. Data such as pressure, temperature and engine speed can be monitored in real time. The operator and service staff are able to get detailed information via the Special Menu.

New ZF limited slip Type II differential axles provide more durability and a longer lifetime. Rolling resistance for the axles is reduced, improving traction and decreasing fuel consumption. As an option, customers can choose ZF axles with a hydraulic differential lock. This function is engaged via the operator pedal or in automatic mode, depending on the torque resistance in 1st and 2nd gear. The hydraulic lock system offers less rolling resistance than the limited slip system.

Powered by the Doosan DL06K common rail 6-cylinder turbocharged diesel engine delivering 119 kW at 2,100 rpm, the DL200-3 wheel loader combines high engine power with a number of new features to minimize fuel consumption and provide better operator comfort, exceptional performance, ease of handling, easier serviceability and extended durability.