Rock to Road

Equipment Heavy Equipment
Doosan releases Tier 4 Final excavators


April 21, 2015
By Rock to Road

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doosan-dx190w-5April 21, 2015 – Doosan has expanded its Tier 4 excavator
lineup with two new wheel models — the DX140W-5 and DX190W-5 — for applications
that require an excavator with rubber tires. The “dash-5” excavators replace
the “dash-3” (interim Tier 4) models. In addition to a Tier 4 diesel engine,
these models feature improved fuel efficiency from a new Smart Power Control
(SPC) selectable engine mode and multiple product enhancements.

doosan-dx190w-5April 21, 2015 – Doosan has expanded its Tier 4 excavator
lineup with two new wheel models — the DX140W-5 and DX190W-5 — for applications
that require an excavator with rubber tires. The “dash-5” excavators replace
the “dash-3” (interim Tier 4) models. In addition to a Tier 4 diesel engine,
these models feature improved fuel efficiency from a new Smart Power Control
(SPC) selectable engine mode and multiple product enhancements.

  

The 132-net-horsepower DX140W-5 and 168-net-horsepower
DX190W-5 wheel excavators are often used in highway / street development,
building, manufacturing operations, site development and land improvement. For
example, a wheel excavator customer can drive on the shoulder of a road to dig
in an adjacent ditch or use a bucket and clamp to pick up materials and load
them into a truck for disposal.

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Machine efficiency and productivity

A new selectable feature, SPC engine mode, is standard on
the DX140W-5 and DX190W-5. SPC consists of two systems — Variable Speed Control
and Pump Torque Control — that work together to improve machine efficiency
while maintaining productivity and reducing fuel consumption. The engine
control unit automatically manages SPC when SPC is engaged. Each of the four
power modes will function with SPC engaged or disengaged; however, SPC can be
active only in the Digging work mode.

          Variable
Speed Control: Reduces engine rpm during low workload requirements such as
during the swing portion of a dig cycle. This reduces the total energy required
to perform a task and improves fuel efficiency by up to 3 to 7 percent.

          Pump Torque
Control: Efficiently matches hydraulic pump torque and engine response to the
task, preventing engine overload and excess fuel consumption, improving
efficiency.

 

Machine updates

New DX140W-5 and DX190W-5 excavators offer customers
multiple product enhancements over their “dash-3” predecessors.

          Ergonomic
joystick: improves operator comfort and ease of use

          Relocated
rear camera: enhances rear visibility

          Camera
monitor: allows operators to monitor machine information while camera is on

          Floor pedal:
adds optional way for operators to activate two-way auxiliary hydraulics

          Alternator
upgrade: provides 80 amps for improved performance

          Emergency
stop relocated: makes it easier for operators to reach on the seat base

 

Tier 4 solution

The Doosan DX140W-5 and DX190W-5 wheel excavators comply
with Tier 4 emission standards. Both models are fitted with Doosan DL06 diesel
engines and aftertreatment technologies, and do not require a diesel
particulate filter (DPF). The engines are optimized for use with a
high-pressure common-rail fuel delivery system and a cooled exhaust gas recirculation
(CEGR) system. They use a diesel oxidation catalyst (DOC) to reduce particulate
matter and selective catalyst reduction (SCR) aftertreatment to reduce nitrogen
oxides. Additionally, a variety of aftertreatment systems have been implemented
as part of the Tier 4 compliance, such as diesel exhaust fluid, which is used
with SCR technology.

 

Doosan Telematics

Doosan excavators come with a standard three-year
subscription to Doosan Telematics, which allows equipment owners and fleet
managers to remotely monitor machine location, hours, fuel usage, engine idle
versus work time and error codes, as well as engine and hydraulic temperatures.
Machines can be monitored via an online Doosan Telematics account. In addition,
Doosan dealers can provide improved customer support using the system by
responding to machine warning messages and alerts, troubleshooting machine
issues, and then sending a field service vehicle to help with repairs and
deliver the proper parts.


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