Doosan DH420LC-7 excavator parameter configuration

Specifications

Machine operating weight (kg) 41200

Bucket capacity (m³) 1.44-2.18

Boom length (mm) 6700

Arm length (mm) 2600/3250/4000

Place of origin Yantai, Shandong

Tonnage (tons) 42

Power Traditional power

Bucket backhoe

Manufacturer joint venture/imported

Power Traditional power

Performance

Slewing speed (rpm) 9.5

Travel speed (km/h) 3.3-5.5

Bucket digging force (kN) 242.1/264.6

Arm digging force (kN) 218.5/139.1; 176.4/193.1; 152.9/166.6

Power system

Engine model Doosan DE12TIS

Rated power (kw/rpm) 210/2000

Cooling method Water cooling

Hydraulic system

Main pump type Parallel inclined axis axial piston pump

Main pump maximum flow (l/min) 2×315

Working hydraulic oil circuit (Mpa) Standard 31.4/Boost 34.3

Travel hydraulic circuit (Mpa) 26.5

Slewing hydraulic circuit (Mpa )26.5

Pilot pump flow (L/min)24

Main body dimensions

Total length for transport (mm)11690

Total width for transport (mm)3350

Total height for transport (mm)3575

Total height of cab (mm)3150

Onboard width (mm)2990

Counterweight ground clearance (mm)1277

Track ground length (mm)4250

Total track length (mm)5215

Track shoe width (mm)600

Total track width (mm)3350

Track gauge (mm)2750

Minimum ground clearance (mm)540

Rear end turning radius (mm )3660

Operating range

Maximum digging radius (mm) 11520

Maximum digging radius of parking surface (mm) 11310

Maximum digging depth (mm) 7725

Maximum digging height (mm) 11000

Maximum unloading height (mm) 7845

Maximum vertical digging depth (mm) 4400

Maximum effective digging depth (mm) 7570