Product Description
Engineered with Hyundai's proven D6BT-C turbocharged diesel engine, this 2020 R215-7 delivers 110 kW of rated power at 1950 rpm through a six-cylinder, water-cooled configuration. Hydraulic performance centers on a dual variable axial piston pump system providing 2×220 L/min flow capacity, operating at 280 MPa working circuit pressure for consistent breakout force. Bucket digging force reaches 123.3 kN, while arm digging force achieves 95.1 kN—sufficient for demanding excavation in varied soil conditions.
Operating specifications include:
- 21-ton class with 20,700 kg working weight and 0.92 m³ bucket capacity
- Maximum digging reach of 9,930 mm and depth capacity to 6,800 mm
- 12.5 rpm rotation speed with quantitative swash plate axial piston motor
- 5,650 mm boom and 2,920 mm arm configuration for extended working envelope
- 70% (35°) grading capability with 47 kPa ground pressure distribution
Currently located in Lishui, Zhejiang Province. Joint venture manufacturing from Jiangsu ensures factory-standard build quality throughout major assemblies and hydraulic components.
| Specifications | Value |
|---|---|
| No. | 1047461 |
| 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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