Technical Parameter
| Conventional parameters | |
|---|---|
| Equipment Model | R520L-9VS |
| Model Abbreviation | 520 |
| Excavator Weight (t) | 52.2 |
| Traveling Method | Crawler |
| Bucket Type | Backhoe |
| Operating Conditions | Mining |
| Engine (Fuel) | |
| Engine Brand | Cummins |
| Model | QSM11 |
| Type | 6Cylinder、4Stroke、Water-cooled、Inline Direct Injection Turbo turbocharged air-to-air intercooled engine |
| Rated Power (kW) | 266 |
| Rated Speed (r/min) | 1900 |
| Maximum Torque (N·m) | 171kgf.m |
| Total Displacement (L) | 10800cc |
| Bore × Stroke (mm) | 125×147.1 |
| Performance Parameters | |
| Operating Weight (kg) | 52200 |
| Bucket Capacity (m³) | 3 |
| Travel Speed (High/Low) (km/h) | 5.0/3.2 |
| Swing Speed (rpm) | 9 |
| Slope Climbing Ability(%) | 70 |
| Bucket Digging Force (kN) | 286.4 |
| Arm Digging Force (kN) | 291.3 |
| Arm Length (mm) | 6550 |
| Boom Length (mm) | 2400 |
| Machine Dimensions | |
| Length × Width × Height (Transportation Status) (mm) | 11810×3540×4090 |
| Clearance Over Counterweight (mm) | 1300 |
| Track Ground Length (mm) | 4470 |
| Total Track Length (mm) | 5480 |
| Track Gauge (mm) | 2880 |
| Minimum Ground Clearance (mm) | 559 |
| Minimum Turning Radius (Front Work Device) (mm) | 4650 |
| Rear End Swing Radius (mm) | 3780 |
| Working Range | |
| Maximum Digging Radius (mm) | 10590 |
| Maximum Digging Radius at Ground Level (mm) | 10320 |
| Maximum Digging Depth (mm) | 6130 |
| Maximum Digging Height (mm) | 10260 |
| Maximum Dumping Height (mm) | 6920 |
| Maximum Vertical Digging Depth (mm) | 4390 |
| Fluid Capacities | |
| Fuel Tank (L) | 621 |
| Hydraulic Tank (L) | 262 |
| Engine Oil Replacement Volume (L) | 38 |
| Coolant Capacity (L) | 45 |
| Hydraulic System | |
| Main Pump Type | Two variable piston pumps |
| Travel Hydraulic Motor Type | with brake valve and parking brake Two-speed axial piston motor |
| Swing Hydraulic Motor Type | Axial piston motor with automatic brake |
| Working Hydraulic Circuit (Mpa) | 33 |
| Travel Hydraulic Circuit (Mpa) | 36 |
| Swing Hydraulic Circuit (Mpa) | 28.5 |
| Arm Cylinder - Bore × Stroke (mm) | 2-ø170×ø115×1570 |
| Boom Cylinder - Bore × Stroke (mm) | 1-ø190×ø130×1820 |
| Bucket Cylinder - Bore × Stroke (mm) | 1-ø170×ø115×1370 |