Large Excavator
整机重量
50500KG
铲斗容量
2.5-3.5m³
额定功率
280Kw
The SH520 is a 50-ton class heavy-duty titan engineered for the most punishing mining and high-capacity earthmoving environments. By integrating a premium Linde hydraulic system with high-tensile structural reinforcements, it delivers a superior combination of massive digging force, optimized fuel economy, and unmatched structural durability.
Driven by the high-output Cummins QSM11 engine delivering 280kW of power, the SH520 utilizes an electronically controlled high-pressure fuel injection system. This technology ensures precise combustion and massive torque delivery at low speeds, significantly reducing hourly fuel consumption while maintaining peak productivity.
Equipped with a large-capacity bucket (up to 3.5m³) and a formidable bucket digging force of 292kN, the SH520 is designed to move massive volumes of material. Its superior cutting power and rapid cycle times make it the definitive choice for open-pit mining and large-scale infrastructure projects.
The customized Linde load-sensing system provides a perfect synergy between the engine and the main pumps. This high-flow configuration ensures fluid multi-function synchronization and lightning-fast response times, allowing for precise control during heavy-duty operations while minimizing energy waste.
The SH520 features a "Central Load-Bearing Structure" that transmits operational forces directly to the chassis, significantly reducing structural stress. Coupled with a reinforced "X" type travel frame that offers 35% higher sectional strength than conventional models, this machine provides a rock-solid foundation for high-load cycles.
With three optimized work modes, operators can perfectly match machine performance to the task at hand. Features like automatic idle and synchronous speed control reduce redundant engine RPM under light loads, further lowering fuel costs and ambient noise.
| Specifications | Details |
|---|---|
🚜 Arm Configuration | |
| Overall Machine Length (mm) | 12545 |
| Ground Contact Length in Transport (mm) | 6723 |
| Overall Height to Boom Top (mm) | 3590 |
| Overall Machine Width (mm) | 3490 |
| Overall Height to Cab Roof (mm) | 3286 |
| Counterweight Ground Clearance (mm) | 1331 |
| Minimum Ground Clearance (mm) | 696 |
| Tail Swing Radius (mm) | 4110 |
| Crawler Length (mm) | 5480 |
| Track Gauge (mm) | 2890 / 2392 |
⚙️ Engine System | |
| Model | Cummins QSM11 |
| Engine Type | 6-cylinder In-line, Turbocharged & Intercooled |
| Displacement (L) | 11 |
| Rated Power (kW/rpm) | 280/2000 |
⛏️ Bucket & Digging Force | |
| Bucket Capacity (m³) | 2.5 – 3.5 |
| Bucket Digging Force (kN) | 292 |
| Arm Digging Force (kN) | 251 |
💧 Hydraulic System | |
| Pump Configuration | 2x Variable Piston Pumps + 1x Gear Pump |
| Max. Operational Flow (L/min) | 2×360 + 27 |
| Travel Circuit Pressure (MPa) | 31.4 |
| System Pressure (MPa) | 31.4 |
🛤️ Travel System | |
| Travel Speed (km/h) | 3.2 / 5.3 |
| Tractive Effort (kN) | 330 |
| Gradeability | 70%（35°） |
⚖️ Operating Weight | |
| Operating Weight (kg) | 50500 |
| Ground Pressure (kPa) | 84 |
🛢️ Fluid Capacities | |
| Fuel Tank Capacity (L) | 650 |
| Coolant System Capacity (L) | 39 |
| Hydraulic Tank/System Capacity (L) | 350 / 475 |
🏗️ Working Range | |
| Maximum Digging Height (mm) | 11220 |
| Maximum Dumping Height (mm) | 7814 |
| Maximum Digging Depth (mm) | 7344 |
| Maximum Digging Radius (mm) | 11774 |
1. Features an electronic high-pressure fuel injection system to optimize the injection process and minimize fuel consumption.
2. Synchronous control eliminates unnecessary engine RPM under light loads, further lowering fuel usage and operational noise.
High efficiency and rapid response are hallmarks of the SH520’s main pumps. Featuring massive displacement and high power density, the system provides strong self-priming capabilities and absolute reliability in extreme cycles.
1. Straight-line travel circuit for stability during transitions.
2. Boom and Swing priority logic for fluid multi-tasking.
3. Regeneration circuits for both the bucket and boom to speed up movement cycles.
4. Load-holding valves to maintain position and safety under heavy stress.
1. High-stress points utilize extra high-tensile strength steel plates.
2. Axis-seat positions are constructed from forged components for superior fatigue resistance.
3. The middle section features large-section internal partition welding for structural rigidity.
Forces are transferred through the upper structure directly to the undercarriage, significantly lowering internal structural stress and extending the overall operational life of the machine.
The cross-beam structure has been re-engineered for stress concentration areas, resulting in a 35% increase in sectional strength compared to standard designs.
Critical wear zones (front, sides, and bottom) are reinforced with ultra-wear-resistant welding plates, extending the average bucket lifespan by more than 20%.
