Develon DX300LC-5

Double tap to zoom



Higher productivity. More efficiency.
In the 28-33 metric ton size class, few machines match the Doosan® DX300LC-5. It has the horsepower to tackle larger projects, but is designed to keep fuel and maintenance costs low.

Its high-pressure common rail fuel injected engine teams with the electronic power optimizing system (EPOS) provide optimum power and fuel efficiency. Choose between four work modes, auto-idle and machine diagnostics. For further fuel savings, auto shutdown helps owners save fuel during non-working conditions.

Comfort and Convenience
Work naturally inside the cab with controls that are placed where you need them. Easily control machine functions with comfortable joysticks. Change between ISO to BHL control patterns. Select the correct auxiliary flow rate using a switch on the control pattern.

A spacious cab provides visibility in all directions, while a standard rear camera gives you an even better view to your work. Choose the optional side camera for the most visibility.

Enter and exit easily through the large door opening. The high-performance air conditioning offers adjustable airflow and five operating modes. The adjustable reclining air suspension seat offers lumbar support. An emergency engine stop is located at the base of the seat.

Reduced, Simplified Maintenance
Designed for long life with a robust frame and reinforced superstructure, the DX300LC-5 is built for reliability. Boom and arm bushings and ultra-hard wear disks are designed for extended service intervals and steady performance. The permanently sealed and lubricated track links maximize uptime and reduce operating costs. Maintenance is simple with fast access to the battery, oil filter, air cleaner, fuel filter, radiators, and other components. Monitor your Doosan heavy equipment and manage maintenance to reduce operating costs with Doosan Connect Telematics.

Further reduce your operating costs with easy access to key checkpoints, the cooling system and other key components. Rely on excellent filter design, efficient air cleaner and centralized grease points.

Tier 4 Technology
To reach Tier emissions standards, the DX300LC-5 incorporates a high-pressure common-rail (HPCR) fuel delivery system as well as cooled exhaust gas recirculation (CEGR) combined with a diesel oxidation catalyst (DOC) and selective catalyst reduction (SCR). Read about our Tier 4 technologies to learn more.


MODEL Doosan DX300LC-5
Rated Flywheel Power (Gross) 270.9 hp @ 1,800 rpm 
Rated Horse Power (Net) 266.5 hp @ 1,800 rpm
Max. Torque (Net) 940 lbf·ft @ 1,300 rpm
Engine Emissions Tier (EPA) --
Hydraulic System  
Main Pump: Displacement 8.42 in³/rev
Control Valve: Relief Valve Pressure (Normal) 4978 psi
Control Valve: Relief Valve Pressure (Boost) 5263 psi
Main Pump: Max. Flow Rate (each) 65.51 gal/min
Upper Rollers: Quantity Per Side 2
Lower Rollers: Quantity Per Side 9
Track Length 16' 2"
Track Link: Track Gauge 8' 6"
Swing Mechanism  
Swing Performance: Max Swing Torque 87787 lbf·ft
Swing Performance: Max Swing Speed (At Efficiency) 9.68 rpm
Travel System/Drive Mechanism  
Travel performance: Traction Force (Highest Value) 2,398,268 lbf
Travel performance: Traveling Speed - Low (XXX/) 1.86 mph
Travel performance: Traveling Speed - High (/XXX) 3.29 mph
Travel performance: Gradeability 35° @ 70 %
Operating Weight 71300 lb
Standard Boom Length 20.49 ft
Standard Arm Length 12.3 ft
Standard Bucket Size 1.35 yd³
Shoe Width 2' 9"
Shipping Height - Hose (With Attachment)  11' 8"
Shipping Length (Without Attachment)  35' 1"
Shipping Width (Standard)  11' 3"
Overall Height Over Cab  10' 0"
Working Range  
Max Digging Reach (Ground)  36' 3"
Max Digging Depth  26' 0"
Max Loading Height  24' 3"
Digging Force (ISO)  
Arm Digging Force - Pressure up 2788 lbf
Bucket Digging Force - Pressure up 4496 lbf
Arm Digging Force - Normal 2630 lbf
Refill Capacities  
Fuel Tank 132.09 gal
Hydraulic System 81.89 gal
Engine Coolant 12.94 gal
Engine Oil 9.51 gal
Hydraulic Tank 73.97 gal
Noise Level: Guaranteed Sound Power Level 104 dBA
Noise Level: Operator 71 dBA
Lift Capacity  
Lifting Capacity over front @ Horizontal Distance - 10 ft Above Ground 18670 lb @ 20 ft
Lifting Capacity over front @ Horizontal Distance - Ground Level 24650 lb @ 20 ft
Lifting Capacity over front @ Horizontal Distance - 10 ft Below Ground 26000 lb @ 20 ft


WARNING: This product can expose you to chemicals including engine exhaust (including diesel engine exhaust when equipped), lead and lead compounds, mineral oils, soots, phthalates, and carbon monoxide which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.