Product Description
Built for high-capacity excavation and grading operations, this 21-ton crawler excavator delivers consistent hydraulic power across demanding jobsites. Powered by a Hyundai D6BT-C water-cooled diesel engine producing 110kW at 1950 rpm, this machine handles earthmoving, trenching, and demolition tasks with proven reliability. The 0.92m³ bucket capacity and 123.3kN bucket digging force cut through compacted soil and rocky terrain efficiently, while the 9.93m maximum digging radius covers extensive work areas from a single position.
- Operating weight: 20,700kg with stable 47kPa ground pressure
- Reach specifications: 6.8m digging depth, 9.73m excavation height
- Dual variable piston pumps: 2×220 L/min flow at 280 MPa working pressure
- Swing speed: 12.5 rpm for fast cycle times
- Travel speeds: 3.5/5.2 km/h for efficient repositioning
- 70% gradeability handles steep terrain and loading ramps
- 320L fuel capacity extends operational hours between refills
Currently located in Wuxi, Jiangsu Province, this R215-7 arrives site-ready with factory hydraulic systems and provenComponent durability for immediate deployment on infrastructure, utility, or commercial development
| Specifications | Value |
|---|---|
| No. | 1048604 |
| 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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