Doosan expands its Tier 4 excavator lineup with two new wheel models, the DX140W-5 and DX190W-5, for dx140w-5_1applications 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 stand out from other excavating equipment with their rubber tires, making them a popular choice for customers who regularly drive on finished concrete or asphalt surfaces. Doosan wheel excavators are often used in highway / street development, building, manufacturing operations, site development and land improvement.

Machine efficiency and productivity
• Variable Speed Control
• Pump Torque Control

Machine updates
• Ergonomic joystick
• Relocated rear camera
• Camera monitor
• Floor pedal
• Alternator upgrade
• Emergency stop relocated

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. A variety of after treatment systems have been implemented as part of the Tier 4 compliance, such as diesel exhaust fluid, which is used with SCR technology.