Doosan Crawler Excavators
September 9, 2015 by On-Site
Doosan DX140LC and DX140LCR crawler excavators have been added to the Tier 4-compliant lineup, featuring improved performance, operator-focused comfort, fuel economy and jobsite durability. Tier 4-compliant machines replace the interim Tier 4 “dash-3” models. The DX140LCR-5 model offers a shorter tail swing. Both the DX140LC-5 and DX140LCR-5 come standard with permanently sealed and lubricated track links, and the bushings and hard-wear disks are designed for reliability as well as extended service intervals to increase uptime. A new selectable feature, Smart Power Control (SPC), is available on both models and 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 (ECU) 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. Pump Torque Control: Efficiently matches hydraulic pump torque and engine response to the task, preventing engine overload and excess fuel consumption. Both excavators come standard with an improved 7-inch liquid-crystal display (LCD) screen that allows operators to continue monitoring the excavator parameters while viewing the rearview or optional side-view camera image. Critical machine data appears next to the camera view. With an optional side camera, a split screen allows both camera displays to be viewed at once. New additions to the monitor include the diesel exhaust fluid (DEF) gauge. Operators can configure the idle time from 3 to 60 minutes. When enabled, the feature will shut down the excavator’s engine when the preset idle time is met. Other updates include:
• Improved anti-skid plates: for easier engine access for machine maintenance • Emergency engine stop: relocated for easier operator access • Improved serviceability: allows for easier access to components and less time for maintenance • Upgraded alternator: delivers improved power for electrical components • New front window design: provides good visibility to the work area Factory-installed options include: • Straight travel pedal, which allows the operator to travel in a straight line more easily • Two-way auxiliary hydraulic pedal (in addition to joystick control) • Cab guarding for special applications • Additional work lamps • Rotate circuit hydraulic piping • Diesel-powered coolant heater for cold starts (not available on the DX140LCR-5) • Intelligent floating boom (not available on the DX140LCR-5) The Doosan DX140LC-5 and DX140LCR-5 comply with Tier 4 emission standards with modified diesel engines and aftertreatment technologies. The engine is optimized for use with a high-pressure common-rail (HPCR) fuel delivery system and a cooled exhaust gas recirculation (CEGR) system. It utilizes a diesel oxidation catalyst (DOC) to reduce particulate matter (PM) and selective catalyst reduction (SCR) after-treatment to reduce nitrogen oxides (NOx). Additionally, a variety of after-treatment systems have been implemented as part of the Tier 4 compliance, such as DEF, which is used with SCR technology. www.doosanequipment.com
Quick Look: Doosan DX140LC-5 crawler excavator
• Horsepower (net): 113 hp • Operating weight: 32,783 lb.
• Max. digging reach (ground): 27 ft. 11 in. • Max. digging depth: 20 ft. 1 in. • Max. loading height: 21 ft. 1 in. • Bucket digging force: 24,471 lbf. • Arm digging force: 13,288 lbf. • Four power modes • Four work modes Quick Look: Doosan DX140LCR-5 crawler excavator • Horsepower (net): 113 hp • Operating weight: 34,987 lb. • Max. digging reach (ground): 27 ft. 11 in. • Max. digging depth: 19 ft. 7 in. • Max. loading height: 23 ft. 2 in. • Bucket digging force: 24,471 lbf. • Arm digging force: 13,288 lbf. • Four power modes • Four work modes
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