Product Description
Built for precision and power, this 2018 Doosan DX420LC delivers exceptional performance in demanding excavation environments. Operating at 42 tons with a robust 218 kW Doosan DE12TIS engine, this crawler excavator combines Korean engineering with proven reliability. Currently located in Luzhou, Sichuan, it offers a strategic reach of 11,495 mm and digging depth of 7,730 mm, making it ideal for large-scale earthmoving and infrastructure projects.
Operator-focused design ensures productivity throughout extended shifts. The spacious cab provides commanding 360-degree visibility, while intuitive hydraulic controls deliver responsive handling through dual 315 L/min variable piston pumps. Ground-level stability is maintained via optimized 73.6 kPa ground pressure and a 3,660 mm rear turning radius, enabling confident maneuvering on varied terrain. The 1.9 m³ backhoe bucket generates 270 kN digging force, supported by a 6,700 mm boom and 3,250 mm arm for versatile material handling.
- Working Weight: 41,500 kg with balanced counterweight clearance
- Hydraulic Efficiency: 31.4 MPa working circuit with supercharge capability
- Travel Performance: Dual-speed 5.5/3.3 km/h with axial plunger motors
- Fu
| Specifications | Value |
|---|---|
| No. | 1029062 |
| Tonnage (tons) | 42 |
| Working weight (kg) | 41500 |
| Bucket capacity (m³) | 1.9 |
| Boom length (mm) | 6700 |
| Rod length (mm) | 3250 |
| Country of origin | Korea |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Doosan Doosan DE12TIS |
| Rated power (kw/rpm) | Net 218(293) / 2000 |
| Cylinder diameter × stroke (mm) | 123 x 155 |
| Number of cylinders (PCS) | 6 |
| Displacement (L) | 11 |
| Working form | Mechanical full speed regulation |
| Ground specific pressure (Kpa) | 73.6 |
| Rotation speed (rpm) | 9.1 |
| Bucket digging force (kN) | 270 |
| Rod digging force (kN) | 201 |
| Travel speed (km/h) | 5.5 / 3.3 |
| Turning torque (Nm) | 127 |
| Main overflow set pressure (Mpa) | 31.4 |
| Rotary hydraulic motor type | Axial plunger type ×1 |
| Type of walking hydraulic motor | Axial plunger type x 2 |
| Maximum flow of main pump (l/min) | 2 x 315 |
| Traveling Hydraulic Circuit (Mpa) | 31.4/ Supercharging 34.3 |
| Rotary Hydraulic Circuit (Mpa) | 26.7 |
| Main pump type | Variable piston pump |
| Working Hydraulic Circuit (Mpa) | 31.4/ Supercharging 34.3 |
| Bucket cylinders - Number × diameter × stroke (mm) | 1-160 x 110 x 1320 |
| Bucket rod cylinders - Number × diameter × stroke (mm) | 1-180 x 120 x 1820 |
| Boom cylinders - Number × diameter × stroke (mm) | 2-165 x 115 x 1460 |
| Fuel Tank (L) | 550 |
| Hydraulic Tank (L) | 390 |
| Engine Oil changes (L) | 28 |
| Coolant (L) | 29.5 |
| Hydraulic System (L) | 420 |
| Total transport length (mm) | 11660 |
| Total transport width (mm) | 3350 |
| Total transport height (mm) | 3,350(to top of arm) |
| Full cab height (mm) | 3350 |
| Counterweight ground clearance (mm) | 1,265 |
| Minimum ground clearance (mm) | 540 |
| Minimum turning radius of front working device (mm) | 4,380 |
| Back end turning radius (mm) | 3,660 |
| Onboard width (mm) | 2,990 |
| Total track length (mm) | 5,200 |
| Track gauge (mm) | 4,250 |
| Track plate width (mm) | 600 |
| Maximum digging radius (mm) | 11495 |
| Maximum digging depth (mm) | 7730 |
| Maximum excavation height (mm) | 10920 |
| Maximum unloading height (mm) | 7795 |
| Maximum vertical digging depth (mm) | 4350 |
| Maximum excavation radius of stop surface (mm) | 11,290 |
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