Doosan DX300MH-5 Material Handler

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As the largest material handler in the lineup, the DX300MH-5 is built for the most demanding material handling functions. It features a fixed 6 ft. cab riser with hydraulic tilt, straight boom and droop nose stick, sandwiched counterweight, rotate grapple ready hydraulics, and additional guarding.

Careful design, high-pressure common rail fuel injection and four valves per cylinder deliver increased torque and efficient fuel consumption. High-capacity pumps improve productivity, while the swing drive provides rapid cycles.

In addition to four power modes, the DX300MH-5 includes lifting work mode, which provides increased pump torque, low engine RPMs, and an automatic power boost.

Cooling features of the DX300MH-5 include a variable speed fan and a split cooling system, which utilizes both hydraulic oil and engine coolant.


Rated Flywheel Power (Gross) 270.9 hp @ 1,800 rpm
Rated Horse Power (Net) 358.1 hp @ 1,800 rpm
Engine Emissions Tier (EPA) T4
Hydraulic System  
Main Pump: Displacement 138 cm³/rev
Control Valve: Relief Valve Pressure (Normal) 350 kgf/cm²
Control Valve: Relief Valve Pressure (Boost) 370 kgf/cm²
Main Pump: Max. Flow Rate (each) 65.51 gal/min
Main Pump: Main Relief Pressure 350 bar
Upper Rollers: Quantity Per Side 2
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) 9.9 rpm
Travel System/Drive Mechanism  
Travel performance: Traction Force (Highest Value) 83258 lbf·ft
Travel performance: Traveling Speed - Low (XXX/) 1.86 mph
Travel performance: Traveling Speed - High (/XXX) 3.29 mph
Operating Weight 79,366 lb
Standard Boom Length 25.59 ft
Standard Arm Length 17.72 ft
Shoe Width 2' 7"
Shipping Height - Hose (With Attachment) 11' 4"
Shipping Length (Without Attachment) 36' 1"
Shipping Width (Standard) 11' 1"
Overall Height Over Cab 10' 0"
Working Range  
Max Digging Reach (Ground) 42' 7"
Max Digging Depth 21' 7"
Max Loading Height 46' 3"
Refill Capacities  
Fuel Tank 132.09 gal
Hydraulic System 81.89 gal
Engine Coolant 12.94 gal
Engine Oil 9.51 gal
Hydraulic Tank 43.59 gal


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.