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New Stage IIIB Doosan 22 tonne Excavator

Digger Blogger | 13:23, Tue May 07 2013

Doosan has launched the new Stage IIIB compliant DX225LC-3 22 tonne excavator.

Applications for the new DX225LC-3 excavator are diverse, from clearing land, site clearance, excavating for foundations and trenching for utilities to earthmoving and maintenance work for highway, civil engineering and general construction projects.

The new DX225LC-3 excavator offers a number of improvement in performance compared to the previous generation machine:

•        Traction force up by 8%

•        A 10% increase in power, with 10% more engine torque

•        An 18% reduction in fuel consumption and 13% increase in productivity

•        Overall an 18% increase in the productivity/fuel consumption ratio

•        Up to 7% increase in machine speed

•        Up to 7% increase in bucket and arm forces

•        An increase of up to 8% in lifting capacities

At its heart is a 6-cylinder, turbocharged Doosan DL06K water-cooled diesel engine meeting emission regulations through the use of cooled exhaust gas recirculation (EGR), diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) after-treatment technologies.  Featuring a high-pressure common-rail design with direct fuel injection and electronic control, the DL06K engine has a power output of 124 kW (167 HP) at 1800 rpm.

The 124 kW DX225LC-3 excavator has an operating weight of 21.9 tonne with the standard boom and arm and a 0.92 m3 bucket.  Bucket breakout force is 15.2 tonne (ISO), while the arm breakout force is 10.8 tonne (ISO).  In the standard monobloc configuration, the maximum digging depth is 6.58 m and maximum digging reach is 9.8 m at ground level.  The latter figure rises to 10.1 m in the articulated configuration and to 15.3 m with super long reach front equipment installed.

New hydraulic pumps and valves deliver higher hydraulic flow, which combined with a boost in system pressure, provides an overall increase in hydraulic performance, resulting in enhanced front and power functions, increased lifting capabilities, lower cycle times and higher breakout forces.  The combination of the new generation hydraulic systems and new highly responsive controls greatly improves the productivity of the DX225LC-3 excavator.

Doosan has gone further than just meeting the Stage IIIB regulations with the new design. They have also looked out for the operators improving our comfort with a number of enhancements, including expanding the space available for the us by 6%.  In addition, a seat-height lever and a tilting function are both incorporated in the seat to allow the operator to find an optimum seating position.

A new attachment select and setting function is a standard feature of the controls, with 10 recordable preset values.  The joysticks have proportional thumb wheel switches and integrated buttons to provide precise control of attachments.  The controls have an improved layout, with the most important switches grouped together within easy reach on the right console.

The cab is pressurized to prevent the ingress of dust and dirt.  Lighting capability has been greatly increased to facilitate working at night.  A rearside camera is standard and a side camera is available as a safety option.  An increased area of glass in the windows of the cab ensures the operator always has excellent all round visibility.  Other features include a fully automatic climate control system, a USB port to play music and videos and more storage compartments for paperwork and other items.

A new straight travel option streamlines the travel and transport of the new DX225LC-3 excavator.  This feature is ideal for the straight forward-and-backward travel common in trenching applications, as it provides a single foot pedal in the front right corner of the cab floor that operates both tracks.  A dual pump option for heavy duty applications provides extra flow for high flow attachments.

Related Information

Brief specifications for the Doosan DX225LC-3 excavator

•        Buckets:                                              0.39 – 1.49 m3

•        Operating weight:                                21.9 – 23.9 t

•        Digging depth (std front):                     6585 mm

•        Digging reach (std front):                     9885mm

•        Digging height (std front):                    9560 mm

•        Overall width:                                       2990 mm

•        Height (std front):                                 3005 mm

•        Overall length in travel position (std front):         9490 mm

•        Rear swing radius:                                2790        mm

•        Drawbar pull:                                        22.4 t

•        Digging force over bucket (ISO):         15.2 t

•        Digging force over arm (ISO):              10.8 t

•        Lifting capacity at ground level (over front):     7.26 t at 6.0 m

•        Travel speed:                                         low range – 3 km/h   - high range – 5.5 km/h

•        Engine (SAE J1995  net):                      6-cylinder Doosan DL06KB Stage IIIB (EGR),  124 kW (167 HP) at 1800 rpm

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