Hydraulic Excavator
Peak Power & Torque for Unmatched Productivity：At the heart of this machine lies a significantly upgraded Cummins QSM11 engine, now rated at 280 kW / 375 HP. This substantial power increase delivers immense torque reserves, enabling it to effortlessly drive the larger 2.5–3.5 m³ bucket through the toughest materials and maintain consistent high-performance cycles, setting a new benchmark in its class for raw excavation power.
Maximized Mass & Counterbalance for Extreme Stability：With an operating weight increased to 50,500 kg, this model achieves an exceptional level of intrinsic stability. This substantial mass acts as a perfect counterweight to the powerful digging forces (292 kN bucket force), virtually eliminating rear-end lift during aggressive digging or heavy lifting, ensuring a planted, secure platform for all operations.
This machine represents the apex of 50-ton+ class hydraulic excavator engineering, purpose-built to dominate the most challenging mining and heavy excavation sites. It is defined by a transformative power upgrade—a 280 kW Cummins engine—that unleashes class-leading breakout forces and effortlessly powers its massive 2.5–3.5 m³ bucket, creating an unparalleled productivity package. Every component is scaled and reinforced to match this power: a 50.5-ton counterweight ensures rock-solid stability, an extended boom provides greater vertical and horizontal reach, and a fortified turntable handles immense stresses. Beyond brute strength, it incorporates intelligent engineering for endurance, such as a high-capacity cooling system and an optimized undercarriage for excellent ground contact. This excavator is not merely an evolution; it is a definitive solution engineered to deliver maximum return on investment through relentless, reliable, and superior performance in the world's most demanding applications.
Extended Boom & Enhanced Working Ranges
The machine features an optimized boom geometry, providing a maximum digging height of 11.22 meters and a maximum digging reach of 11.77 meters. These extended ranges allow operators to work from a single position over a wider area, efficiently loading higher-sided haul trucks and tackling deep excavations or high walls without frequent repositioning.
Reinforced Turntable & Structural Integrity
The critical turntable structure has been strengthened, indicated by the increased turntable width of 3,322 mm and a larger tail swing radius of 4,110 mm. This enhanced design distributes immense torsional and moment loads more effectively during simultaneous swing and lifting operations, significantly boosting structural longevity and reliability under constant, severe-duty stress.
High-Capacity Cooling for Sustained Performance
Engineered for continuous operation in high-ambient temperatures, this model is equipped with a larger 39L cooling system capacity. This upgrade ensures optimal thermal management for both the high-output engine and the high-flow hydraulic system, preventing power deration and maintaining peak performance and efficiency throughout prolonged, demanding work shifts.
High-Flow Hydraulic System for Faster Cycle Times
Supported by a total hydraulic system capacity of 475 liters and dual high-output piston pumps, the machine delivers exceptional hydraulic responsiveness and speed. This results in noticeably faster boom and stick movements, quicker bucket curling, and reduced overall cycle time, translating directly into higher material moved per hour (MPH).
Optimized Weight Distribution & Ground Contact
Despite the increased overall weight, the machine maintains excellent flotation through its long track length of 5,480 mm and wide 600 mm shoes. The calculated ground pressure of 84 kPa demonstrates an optimal balance between machine weight and track contact area, ensuring superior traction and minimal ground disturbance even on softer surfaces, while retaining the stability needed for heavy-duty work.
SH520 excavator adopts Linde hydraulic system, which is not only an external upgrade, but also an internal function upgrade of the machine. Due to the customized load sensing system, the fuel consumption per hour is further reduced, and the work efficiency and fuel efficiency are greatly improved. In the corresponding application, three working modes can be optimized and matched, thus saving energy and improving work efficiency.
| Item | Value |
|---|---|
| Stick Type | |
| Overall Length (mm) | 12545 |
| Ground Length (during transportation) (mm) | 6723 |
| Total Height (to top of boom) (mm) | 3590 |
| Total Width (mm) | 3490 |
| Total Height (to top of cab) (mm) | 3286 |
| Counterweight Ground Clearance (mm) | 1331 |
| Minimum Ground Clearance (mm) | 696 |
| Tail Swing Radius (mm) | 4110 |
| Tread (mm) | 4414 |
| Track Length (mm) | 5480 |
| Track Gauge (mm) | 2890/2392 |
| Track Width (mm) | 3490/2992 |
| Track Shoe Width (mm) | 600 |
| Hood Height (mm) | 2855 |
| Turntable Width (mm) | 3322 |
| Distance from Swing Center to Rear End (mm) | 4110 |
| Engine | |
| Model | Cummins QSM11 |
| Type | 6-cylinder, in-line, turbocharged & intercooled |
| Cylinders × Bore × Stroke (mm) | 6×125×150 |
| Displacement (L) | 11 |
| Power Rating (kW/rpm) | 280/2000 |
| Bucket | |
| Bucket Capacity (m³) | 2.5 – 3.5 |
| Bucket Width (mm) | 1706 |
| Digging Force | |
| Bucket Digging Force (kN) | 292 |
| Stick Digging Force (kN) | 251 |
| Hydraulic System | |
| Hydraulic Pump Type | 2 variable piston pumps + 1 gear pump |
| Max Working Flow (L/min) | 2×360 + 27 |
| Travel Circuit Pressure (MPa) | 31.4 |
| Swing Circuit Pressure (MPa) | 28.4 |
| Control Circuit Pressure (MPa) | 3.9 |
| Travel System | |
| Travel Motor | Axial variable piston motor |
| Track Plates | 2×50 |
| Travel Speed (km/h) | 3.2 / 5.3 |
| Drawbar Pull (kN) | 330 |
| Gradeability | 70% (35°) |
| Carrier Rollers | 2×9 |
| Idlers | 2×2 |
| Operating Weight & Ground Pressure | |
| Operating Weight (kg) | 50500 |
| Ground Pressure (kPa) | 84 |
| Swing System | |
| Swing Speed (r/min) | 9.3 |
| Braking Type | Pressure release, mechanical brake |
| Oil Capacity | |
| Fuel Tank Capacity (L) | 650 |
| Cooling System (L) | 39 |
| Engine Oil Capacity (L) | 37.8 |
| Hydraulic Oil Tank / System Capacity (L) | 350 / 475 |
| Boom Type | |
| Max Digging Height (mm) | 11220 |
| Max Dump Clearance (mm) | 7814 |
| Max Digging Depth (mm) | 7344 |
| Max Vertical Digging Depth (mm) | 6502 |
| Max Digging Reach (mm) | 11774 |
| Max Ground Digging Reach (mm) | 11552 |
| Min Swing Radius of Working Device (mm) | 4919 |
