Power and Capacity for Large Jobs
The heavy-duty Doosan® DL550-7 is ideal for work in quarries, mines, demolition and industrial operations.
Performance features include a Z-bar lift arm, return to dig, limited slip rear differential, hydraulic locking front differential, and a stronger box frame for improved lifting capacity.
Options include a quick coupler, additional larger counterweight and Load Isolation System to improve stability when moving. The high-lift option provides additional height for loading into high-sided trucks.
The Doosan Smart Load weighing system is ideal for job applications that require accurate information about material weight in the bucket.
Added Durability for the Toughest Work
Redesigned and reinforced for maximum reliability, the DL550-7 features a hydraulically driven reversible fan, reinforced box frame with an articulating design and large center bearings and self-centering, double-tapered roller bearings stand up to punishing work day after day.
Outboard brakes are located in final reduction where the rotation speed is lower, greatly extending the lifetime of the brake discs.
Added Comfort. All-Around Visibility.
The redesigned cab includes improved comfort and visibility, with 14% more glass, a full glass door, larger mirrors, optional work lights and a standard rearview camera.
The Doosan Smart Touch screen conveniently displays all important settings and information — including the view from the rearview camera. From the screen, operators can monitor critical machine functions and control machine settings, heating and cooling, the Doosan Smart Guidance System and more.
Other controls are located within easy reach and are more intuitive to use.
The exclusive Transparent Bucket option provides a supplemental visual perspective by allowing operators to “see-through” the bucket from an in-cab display.
The Doosan Smart Key fob unlocks the cab and allows push-button engine starts.
Easy to Maintain
DoosanCONNECT® Telematics is a powerful equipment diagnostic tool, monitoring the health, location and productivity of your DL550-7 from a user-friendly mobile app and website. You can check machine location, fleet status, operating hours, error codes, fuel usage, engine idle vs. work time, engine and hydraulic oil temperature and various other data points from anywhere. Your dealership also has access, so they can offer more proactive service to help maximize machine uptime.
When doing maintenance, centralized lubrication points, plus easy component access and fluid-level checks, make daily checks convenient.
The available automatic lubrication system offers improved machine reliability and saves time on daily maintenance.
To comply with Tier 4 emissions standards, the DL550-7 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) with diesel exhaust fluid (DEF).
Several fuel-saving technologies help improve machine efficiency, including Situation Awareness Technology (SAT). It automatically adjusts the engine output in real time to the needs of the drivetrain and hydraulics to help save fuel without compromising performance.
The standard auto-idle feature reduces engine rpm when the steering wheel or joystick isn’t being used, and auto-shutdown turns off the engine after a set amount of time idling.
|RATED FLYWHEEL POWER (GROSS)||380 hp @ 1,800 rpm (SAE-J1995)|
|RATED HORSE POWER (NET)||380 hp @ 1,800 rpm|
|MAX. TORQUE (NET)||1302 lbf·ft @ 1,300 rpm|
|MAIN PUMP: DISPLACEMENT||6.1 in³/rev|
|BOOM SPEED - UP (LOADED)||6.3 s (±0.4 s)|
|BOOM SPEED - DOWN||3.4 s (±0.4 s)|
|BUCKET SPEED - DUMP||1.7 s (±0.3 s)|
|MAIN PUMP: MAX. FLOW RATE (EACH)||55.5 gal/min|
|MAIN PUMP: MAIN RELIEF PRESSURE||3,626 psi|
|TOTAL CYCLE TIME||--|
|Travel System/Drive Mechanism|
|TRAVEL PERFORMANCE: GRADEABILITY||58° @ 30 %|
|TRAVELING PERFORMANCE: MAX. TRACTIVE EFFORT||72,091 lb|
|OPERATING WEIGHT||70,599 lb|
|BUCKET CAPACITY||6.8 yd³|
|BUCKET WIDTH||11' 2"|
|HINGE PIN HEIGHT||15' 7"|
|DUMP REACH AT 45° (FULLY RAISED)||4' 4"|
|DUMP HEIGHT AT 45° (FULLY RAISED)||11' 3"|
|OVERALL HEIGHT||12' 7"|
|OVERALL LENGTH||32' 5"|
|WHEEL BASE||12' 1"|
|GROUND CLEARANCE||1' 6"|
|EXTERNAL TURNING RADIUS AT BUCKET EDGE||24' 6"|
|STATIC TIPPING LOAD (STRAIGHT)||53,273 lb|
|STATIC TIPPING LOAD (FULL TURN)||47,042 lb|
|BREAKOUT FORCE||56,202 lbf|
|REAR AXLE OSCILLATION||20°|
|TRAVEL SPEED FORWARD - 1ST GEAR||3.79 mph|
|FUEL TANK||116.5 gal|
|COOLING SYSTEM||14.27 gal|
|HYDRAULIC SYSTEM||63.93 gal|
|HYDRAULIC TANK||63.93 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.