As a leader in the 40-50 metric ton size class, the Doosan® DX420LC-5 provides solid performance, excellent fuel efficiency, an operator-focused working environment and exceptional durability to deliver consistent results.
Designed for long life with an extra-sturdy frame and reinforced superstructure, the DX420LC-5 is built for reliability. The boom design and x-chassis frame are designed for greater integrity and durability.
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. Monitor your Doosan heavy equipment and manage maintenance to reduce operating costs with Doosan Connect Telematics.
Controls for machine functions are simple and placed for your convenience. Easily change the control pattern from ISO to BHL to match your preference. Two-way auxiliary hydraulics can now be controlled via a joystick switches or the new optional foot pedal control.
Select the correct auxiliary flow rate using a switch on the control pattern. A straight travel option is ideal for straight forward and backward travel in trenching applications.
A spacious cab provides unmatched visibility and operator comfort. An adjustable air suspension seat and high-performance air conditioning with five operating modes. An emergency engine stop is located at the base of the seat.
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. A rear view camera and optional side camera give you more visibility to your work.
To reach Tier 4 emissions standards, the DX420LC-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.
Learn about all of the other performance, reliability, and comfort features by viewing the crawler excavator product section.
|Rated Flywheel Power (Gross)
||344.6 hp @ 1,800 rpm (ISO-9249)
|Rated Horse Power (Net)
||337.9 hp @ 1,800 rpm
|Max. Torque (Net)
||1176 lbf·ft @ 1,300 rpm
|Engine Emissions Tier (EPA)
|Main Pump: Displacement
|Control Valve: Relief Valve Pressure (Normal)
|Control Valve: Relief Valve Pressure (Boost)
|Main Pump: Max. Flow Rate (each)
|Upper Rollers: Quantity Per Side
|Lower Rollers: Quantity Per Side
|Track Link: Track Gauge
|Swing Performance: Max Swing Torque
|Swing Performance: Max Swing Speed (At Efficiency)
Travel System/Drive Mechanism
|Travel Performance: Traction Force (Highest Value)
|Travel Performance: Traveling Speed - Low (XXX)
|Travel Performance: Traveling Speed - High (XXX)
|Travel Performance: Gradeability
|Standard Boom Length
|Standard Arm Length
|Standard Bucket Size
|Shipping Height - Hose (With Attachment)
|Shipping Length (Without Attachment)
|Shipping Width (Standard)
|Overall Height Over Cab
|Max Digging Reach (Ground)
|Max Digging Depth
|Max Loading Height
Digging Force (ISO)
|Arm Digging Force - Pressure Up
|Bucket Digging Force - Pressure Up
|Arm Digging Force - Normal
|Noise Level: Guaranteed Sound Power Level
|Noise Level: Operator
|Lifting Capacity over Front @ Horizontal Distance - 10 ft Above Ground
||31,820 lb @ 20 ft
|Lifting Capacity over Front @ Horizontal Distance - Ground Level
||37,380 lb @ 20 ft
|Lifting Capacity over Front @ Horizontal Distance - 10 ft Below Ground
||35,010 lb @ 20 ft
- Diesel Powered Coolant Heater
- Block Heater
- Auxiliary Hydraulics, Two-Way w/ Optional Pedal Control
- Intelligent Floating Boom
- Boom Lock Valve
- Rain Shield
- Guard, FOGS
- Guard, Front Window
- Vandalism Covers
- Work Lights
- Rotating Beacon
- Track Shoe Sizes
- Straight Travel
- Air Compressor