(Photo courtesy of Doosan Infracore North America)
Doosan Infracore North America has introduced its next-generation -7 Series wheel excavators. The Doosan DX140W-7, DX190W-7 and DX210W-7 aim to balance power and fuel efficiency and are equipped with upgraded comfort features, intelligent controls and smart machine functionality. The line is the company’s replacement for its “dash 5” models.
The excavators have a modular design that allows owners to easily configure the machine’s undercarriage to level, backfill material with the front dozer blade, or stabilize the machine when digging. Owners can choose from four independent outriggers or a front dozer blade and independent rear outriggers.
Technology advances on the machines includes the company’s Smart Power Control (SPC), which is designed to improve efficiency while maintaining productivity through variable speed control and pump torque control. Each of the four power modes will function with SPC engaged or disengaged, however, SPC is only active in the digging work mode.
Four work modes, auto idle, auto shutoff and machine diagnostics help wheel excavator owners manage their fuel costs. In addition, each machine is equipped with engine auto shutdown to save fuel and help lower warranty hours.
The redesigned cab offers more floor space, automotive-style heating and air conditioning and ample visibility through the front, rear and overhead windows. Inside the cab is an optional deluxe air-suspension seat that is heated and cooled, ergonomically designed joystick controls and a new user-friendly, eight-inch Smart Touch screen.
The multilingual Doosan Smart Touch screen, standard on -7 Series excavators, displays important settings and information on one screen. From the easy-to-read touch screen, operators can monitor critical machine functions and control machine settings, rearview camera, heating and cooling, radio and Bluetooth wireless technology.
An optional 360-degree all-around view monitoring (AVM) camera system displays a full view of the machine’s surroundings, giving operators greater confidence when operating or positioning the machine in tight work areas. Five unique visual perspectives can be seen from the separate AVM monitor: top view, rear view, top+right view, rear+corner view and 3-D view. The AVM camera system can be linked with optional ultrasonic detection sensors for an additional level of awareness of objects behind the machine.
The optional load isolation system engages automatically at 3.1 mph (5 km/h), reducing attachment and machine bouncing when traveling on uneven road surfaces.
DoosanCONNECT Telematics, to remotely monitor and maintain machines, is standard on all -7 Series wheel excavators.
The DX140W-7 replaces the company’s DX140W-5 and offers 137 hp (102 kW) at 2,000 rpm, has an operating weight of 34,760 lb. (15,800 kg), a maximum digging depth of 14 ft. 8 in. (4.5 m), maximum digging reach (ground) of 24 ft. 2 in. (7.4 m), and a maximum loading height of 19 ft. 4 in. (6 m).
The DX190W-7 replaces the DX190W-5 and makes 159.6 hp (119 kW) at 1,900 rpm. It has an operating weight of 46,187 lb. (20,950 kg), a maximum digging depth of 18 ft. 9 in. (6 m), a maximum digging reach (ground) of 29 ft. 8 in. (9 m), and maximum loading height of 22 ft. 2 in. (6.8 m).
And the DX210W-7 is designed to replace the DX210W-5. It offers 171.2 hp (127.7 kW) at 1,900 rpm, has an operating weight of 50,706 lb. (23,000 kg), maximum digging depth of 19 ft. 4 in. (5.9 m), maximum digging reach (ground) of 31 ft. 2 in. (9.5 m), and a maximum loading height of 23 ft. 4 in. (7.2 m).
