Doosan offers the DX350LC-7 Stage V 36-ton crawler excavator. The DX350LC-7 is the first Stage V model to feature Doosan’s D-ECOPOWER technology, providing operators with lower fuel consumption per hour.
Doosan D-ECOPOWER Technology
Doosan’s D-ECOPOWER technology utilizes an electronic pressure-controlled pump within a closed center hydraulic system to minimize up to 12% in fuel consumption, depending on the mode selected. A closed centered main control valve minimizes pressure loss, while the electric pressure-controlled pump manages engine power.
The D-ECOPOWER system uses nine sensors to detect the amount of hydraulic oil necessary for a specific task and meter the amount of oil required rather than continuously forcing a fixed amount of oil through the system. Software is utilized to electronically facilitate the open center hydraulic system. The hydraulic system and engine horsepower are synchronized to reduce losses within the system.
Feedback to the operator through the joystick ensures machine control. The acceleration and deceleration of the excavator workgroup functions allow operators to perform repetitive swinging and digging motions with less jerking movements.
Doosan DL08 Stage V Engine
To meet Stage V engine emission regulations, the new DX350LC-7 excavator is powered by the latest generation Doosan DL08 diesel engine, providing 209 kW of power at 1,800 RPM.
The DL08 engine offers a new solution to meet Stage V regulations without exhaust gas recirculation (EGR), that boosts the quantity of air available during combustion, increasing the temperature of the process and reducing the amount of particulates produced. This is combined with DOC/DPF+SCR after treatment technology to ensure minimal emissions.
Due to the new technology, maintenance of the diesel particulate filter (DPF) has been reduced, with no maintenance required until the machine has operated for 8,000 hours.
The fuel efficiency of the DL08 engine in combination with a new hydraulic main valve and the new generation SPC3 Smart Power Controls, provides overall fuel efficiency increases of +10% in S mode and +6% in P+ mode, compared to the previous generation machine.
These are two in a range of four power modes now available on the DX350LC-7. The operator is able to set the power mode (P+, P, S or E) in both one-way and two-way working modes.
Cab Features
- New 8-inch touch-enabled color LCD gauge panel, providing more information via a 30% larger screen
- Stereo system integrated in the gauge panel
- Smart keyless start system (option)
- Improved interior cab design
- Ultrasonic sonic detection of obstacles (option)
- LED lights (option)
- Side protection (option)
- Air compressor (option)
Excavator Specifications
- Operating weight: 36 tons
- Bucket capacity: 2.0 m3
- Digging depth: 7540 mm
- Digging reach: 10980 mm
- Digging height: 10325 mm
- Overall width (with 600 mm shoes): 3200 mm
- Height: 3390 mm
- Overall length in travel position: 11350 mm
- Tail swing radius: 3530 mm
- Digging force over bucket (ISO): 25.9 tons
- Digging force over arm (ISO): 18.9 tons
- Travel speed: low range – 3.5 km/h high range – 5.7 km/h
- Engine (SAE J1995 net): 6-cylinder Doosan DL08 Stage V, 209 kW (284 HP) at 1800
