Doosan DX420LC Crawler Excavator
Specifications of DX420LC excavator
Summary
Motivation: Traditional motivation
Bucket: Backhoe
Tonnage (tons):42
Working weight of the machine (kg):41500
Bucket capacity (m³):1.9
Arm length (mm):6700
Bucket rod length (mm):3250
Country of Origin: South Korea
Performance
Rotary speed (RPM):9.1
Rotary torque (kN/m):127
Walking speed (km/h): 5.5/3.3
Ground specific voltage (kPa):73.6
Bucket excavating force (kN):270
Bucket rod digging force (kN):201
Power system
Engine model: Doosan DE12TIS
Rated power (kW/RPM):218(293) / 2000
Displacement (L) : 11
Number of cylinders :6
Cylinder diameter × stroke (mm):123×155
Working form: mechanical full speed regulation
Hydraulic system
Main pump type: variable piston pump
Type of hydraulic motor: axial plunger type ×2
Rotary hydraulic motor type: axial plunger type x 1
Maximum flow of main pump (L /min):2×315
Working hydraulic oil circuit (MPA):31.4/ pressurized
34.3
Travel hydraulic circuit (MPA):31.4/ pressurization 34.3
Rotary hydraulic circuit (MPa):26.7
Set pressure of main overflow (MPa):31.4
Boom cylinder - number × cylinder diameter × stroke
(mm):2-165×115×1,460
Bucket rod cylinder - number × cylinder diameter × stroke
(mm):1-180×120×1,820
Bucket cylinder - number × cylinder diameter × stroke
(mm):1-160×110×1,320
Fuel hydraulic oil capacity
Fuel tank (L) : 550
Hydraulic tank (L):390
Hydraulic System (L):420
Engine oil change quantity (L):28
Coolant (L):29.5
Body size
Total length of transportation (mm):11660
Total width of transportation (mm):3350
Transport total height (mm):3,350(to the top of the big
arm)
Cab full height (mm):3350
Load width (mm):2,990
Total length of track (mm):5,200
Crawler plate width (mm):600
Track gauge (mm):4,250
Minimum ground clearance (mm):540
Balance weight ground clearance (mm):1,265
Minimum turning radius of front working device (mm):4,380
Rear-end turning radius (mm):3,660
Operating range
Maximum excavation radius (mm) : 11495
Maximum excavating radius of stop face (mm) : 11,290
Maximum excavation depth (mm) : 7730
Maximum excavation height (mm) : 10920
Maximum unloading height (mm) : 7795
Maximum vertical excavation depth (mm) : 4350
