Product Description
Built for demanding excavation work, this 2011 Hyundai R215-7 delivers reliable performance across digging, grading, and material handling operations. Operating at 21 tons with a 0.92 m³ bucket capacity, this machine tackles site challenges with proven hydraulic power and precision control. The Hyundai D6BT-C engine generates 110 kW at 1950 rpm through a water-cooled, six-cylinder turbocharged system, providing consistent power for extended work cycles.
Equipped with a 5650 mm boom and 2920 mm arm, the R215-7 reaches a maximum digging radius of 9930 mm and achieves depths up to 6800 mm. Bucket digging force measures 123.3 kN, while the arm delivers 95.1 kN for breaking through compacted materials. Dual variable axial piston pumps supply 2 × 220 l/min flow to the hydraulic system, ensuring responsive operation under load.
Key operational specifications include:
- Maximum digging height: 9730 mm for efficient truck loading
- Travel speeds: 3.5/5.2 km/h for site mobility
- Climbing ability: 70% (35°) for challenging terrain
- 320 L fuel capacity for extended runtime
- Currently located in Hangzhou, Zhejiang, ready for deployment
| Specifications | Value |
|---|---|
| No. | 997741 |
| Tonnage (tons) | 21 |
| Working weight (kg) | 20700 |
| Bucket capacity (m³) | 0.92 |
| Boom length (mm) | 5650 |
| Rod length (mm) | 2920 |
| Country of origin | Jiangsu (Province) |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Hyundai D6BT-C |
| Rated power (kw/rpm) | 110/1950 |
| Cooling mode | water-cooling |
| Cylinder diameter × stroke (mm) | 118 x 115 |
| Number of cylinders (PCS) | 6 |
| Displacement (L) | 7 |
| Working form | Six-cylinder four-stroke turbocharged direct injection engine |
| Ground specific pressure (Kpa) | 47 |
| Rotation speed (rpm) | 12.5 |
| Climbing ability (%) | 70/35 ° |
| Bucket digging force (kN) | 123.3 |
| Rod digging force (kN) | 95.1 |
| Travel speed (km/h) | 3.5/5.2 |
| Main overflow set pressure (Mpa) | 47 |
| Rotary hydraulic motor type | Quantitative swash plate axial piston motor |
| Type of walking hydraulic motor | Variable swash plate axial piston motor |
| Maximum flow of main pump (l/min) | 2 x 220 |
| Traveling Hydraulic Circuit (Mpa) | 280 |
| Rotary Hydraulic Circuit (Mpa) | 240 |
| Main pump type | 2× variable axial piston pump + gear pump |
| Working Hydraulic Circuit (Mpa) | 280 |
| Pilot Oil Circuit (MPa) | 35 |
| Bucket cylinders - Number × diameter × stroke (mm) | 120 * 80 * 1120 |
| Bucket rod cylinders - Number × diameter × stroke (mm) | 140 * 95 * 1570 |
| Boom cylinders - Number × diameter × stroke (mm) | 125 * 85 * 1320 |
| Fuel Tank (L) | 320 |
| Hydraulic Tank (L) | 165 |
| Engine Oil changes (L) | 16.3 |
| Coolant (L) | 32.7 |
| Hydraulic System (L) | 270 |
| Total transport length (mm) | 9510 |
| Total transport width (mm) | 2800 |
| Total transport height (mm) | 2990 |
| Full cab height (mm) | 2920 |
| Counterweight ground clearance (mm) | 1060 |
| Minimum ground clearance (mm) | 480 |
| Back end turning radius (mm) | 2830 |
| Total track length (mm) | 4160 |
| Track gauge (mm) | 2200 |
| Track plate width (mm) | 600 |
| Total track width (mm) | 2800 |
| Track ground length (mm) | 3360 |
| Maximum digging radius (mm) | 9930 |
| Maximum digging depth (mm) | 6800 |
| Maximum excavation height (mm) | 9730 |
| Maximum unloading height (mm) | 6910 |
| Maximum vertical digging depth (mm) | 6060 |
| Bulldozer lift or depth (mm) | There is no |
| Dodging plate width × height (mm) | There is no |
| Maximum excavation radius of stop surface (mm) | 9760 |
| Maximum effective digging depth (mm) | 6610 |
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