Designed for Power
With impressive digging and high tractive power, the Doosan® DL420-7 wheel loader excels in tough applications. It's designed to take on a wide range of material handling tasks, from loading and transporting granular material (such as sand and gravel) to large general construction applications.
Powered by a powerful Tier 4 diesel engine, it can penetrate tough materials, tilt and lift with ease, and carry more in every cycle. Performance features include a powershift transmission with optimized hydraulic pumps, multiple power modes, Z-bar lift arm, return to dig, and limited slip differentials on both front and rear axles.
The high-lift option offers additional lift height and reach. Added material strengthens each section of the rugged box frame for better balance and improved lifting capacity.
An efficient cooling system features wider radiator fin spacing and a reversible fan to quickly clear debris.
The optional Load Isolation System improves vehicle stability while moving. An optional quick coupler allows you to quickly change many non-hydraulic attachments without leaving your seat. The optional Doosan Smart Load weighing system is ideal for job applications that require accurate information about material weight in the bucket.
Comfort and Visibility
The redesigned cab features a better view of the work thanks to 14% more glass, a full glass door, larger mirrors, optional work lights and a standard rearview camera.
Controls are within easy reach and more intuitive to use. The Doosan Smart Touch screen 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.
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.
It’s easier to stay on top of maintenance with the DL420-7. Centralized lubrication points, plus easy component access and fluid-level checks, make daily checks more convenient.
The available automatic lubrication system offers improved machine reliability.
DoosanCONNECT® Telematics, a powerful equipment diagnostic tool, monitors the health, location and productivity of your Doosan equipment from a user-friendly mobile app and website. You can quickly and easily 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. And it allows your dealer to offer more proactive service to help maximize machine uptime.
The latest technologies work to improve fuel efficiency. Situation Awareness Technology (SAT) 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.
To comply with Tier 4 emissions standards, the DL420-7 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).
|RATED FLYWHEEL POWER (GROSS)||345 hp @ 1,800 rpm (SAE-J1995)|
|RATED HORSE POWER (NET)||345 hp @ 1,800 rpm|
|MAX. TORQUE (NET)||1180 lbf·ft @ 1,300 rpm|
|MAIN PUMP: DISPLACEMENT||8.54 in³/rev|
|BOOM SPEED - UP (LOADED)||6 s (±0.5 s)|
|BOOM SPEED - DOWN||2.7 s (±0.4 s)|
|BUCKET SPEED - DUMP||1.6 s (±0.3 s)|
|MAIN PUMP: MAX. FLOW RATE (EACH)||70 gal/min|
|MAIN PUMP: MAIN RELIEF PRESSURE||4,641 psi|
|TOTAL CYCLE TIME||--|
|Travel System/Drive Mechanism|
|TRAVEL PERFORMANCE: GRADEABILITY||27° @ 51 %|
|TRAVELING PERFORMANCE: MAX. TRACTIVE EFFORT||49,384 lb|
|OPERATING WEIGHT||51,553 lb|
|BUCKET CAPACITY||5.5 yd³|
|BUCKET WIDTH||10' 8"|
|HINGE PIN HEIGHT||13' 11"|
|DUMP REACH AT 45° (FULLY RAISED)||4' 1"|
|DUMP HEIGHT AT 45° (FULLY RAISED)||10' 0"|
|OVERALL HEIGHT||12' 0"|
|OVERALL LENGTH||29' 11"|
|WHEEL BASE||11' 6"|
|GROUND CLEARANCE||1' 7"|
|EXTERNAL TURNING RADIUS AT BUCKET EDGE||22' 11"|
|STATIC TIPPING LOAD (STRAIGHT)||42,719 lb|
|STATIC TIPPING LOAD (FULL TURN)||37,686 lb|
|BREAKOUT FORCE||41,365 lbf|
|REAR AXLE OSCILLATION||24°|
|TRAVEL SPEED FORWARD - 1ST GEAR||4.47 mph|
|FUEL TANK||84.01 gal|
|COOLING SYSTEM||14.48 gal|
|HYDRAULIC SYSTEM||58.91 gal|
|HYDRAULIC TANK||33.02 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.