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Built for contractors who can't afford downtime, this 2020 Doosan DH420LC-7 delivers 42-ton class performance with the reliability your fleet demands. Powered by a Doosan DE12TIS engine producing 210 kW at 2,000 rpm with water-cooling, it handles the heaviest site conditions without hesitation. Currently located in Zhejiang, China and ready for export.
With a maximum digging depth of 7,725 mm and a reach of 11,520 mm, this backhoe excavator covers serious ground on large civil, mining, and infrastructure projects. Bucket digging force peaks at 264.6 kN, backed by dual 315 L/min axial piston pumps and a working hydraulic circuit supercharged to 34.3 MPa.
- Working weight: 41,200 kg | Bucket capacity: 1.44–2.18 m³
- Boom: 6,700 mm | Rod options: 2,600 / 3,250 / 4,000 mm
- Maximum excavation height: 11,000 mm | Unloading height: 7,845 mm
- Travel speed: 3.3–5.5 km/h | Rotation speed: 9.5 rpm
- Track plate width: 600 mm | Track gauge: 2,750 mm
- Transport dimensions: 11,690 × 3,350 × 3,575 mm
Adding a proven 40-ton excavator to your rotation keeps production moving when primary machines are under service. This DH420LC-7 is a practical, high-capacity asset for any contractor scaling up operations or managing multi-site workloads.
| Specifications | Value |
|---|---|
| No. | 1071122 |
| Tonnage (tons) | 42 |
| Working weight (kg) | 41200 |
| Bucket capacity (m³) | 1.44-2.18 |
| Boom length (mm) | 6700 |
| Rod length (mm) | 2600/3250/4000 |
| Country of origin | Yantai, Shandong Province |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Doosan DE12TIS |
| Rated power (kw/rpm) | 210/2000 |
| Cooling mode | water-cooling |
| Rotation speed (rpm) | 9.5 |
| Bucket digging force (kN) | 242.1/264.6 |
| Rod digging force (kN) | 218.5/139.1; 176.4/193.1; 152.9/166.6 |
| Travel speed (km/h) | 3.3-5.5 |
| Maximum flow of main pump (l/min) | 2 x 315 |
| Traveling Hydraulic Circuit (Mpa) | 26.5 |
| Rotary Hydraulic Circuit (Mpa) | 26.5 |
| Main pump type | Parallel inclined axial piston pump |
| Working Hydraulic Circuit (Mpa) | Standard 31.4/ Supercharged 34.3 |
| Pilot pump flow (L/min) | 24 |
| Total transport length (mm) | 11690 |
| Total transport width (mm) | 3350 |
| Total transport height (mm) | 3575 |
| Full cab height (mm) | 3150 |
| Counterweight ground clearance (mm) | 1277 |
| Minimum ground clearance (mm) | 540 |
| Back end turning radius (mm) | 3660 |
| Onboard width (mm) | 2990 |
| Total track length (mm) | 5215 |
| Track gauge (mm) | 2750 |
| Track plate width (mm) | 600 |
| Total track width (mm) | 3350 |
| Track ground length (mm) | 4250 |
| Maximum digging radius (mm) | 11520 |
| Maximum digging depth (mm) | 7725 |
| Maximum excavation height (mm) | 11000 |
| Maximum unloading height (mm) | 7845 |
| Maximum vertical digging depth (mm) | 4400 |
| Maximum excavation radius of stop surface (mm) | 11310 |
| Maximum effective digging depth (mm) | 7570 |
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