Introducing the ZG520 Crawler Hydraulic Excavator, engineered to deliver unmatched performance and reliability in demanding excavation applications. Equipped with a Cummins EFI engine, compliant with Ⅲ-stage emission regulations, this excavator boasts robust power, energy efficiency, and exceptional durability. Its advanced negative flow hydraulic system ensures comfortable operation, high efficiency, and outstanding cost-effectiveness. With full power control and four adaptable power modes, it excels in various working conditions, making it the top choice for contractors and operators seeking productivity and efficiency.
Key Specifications:
- Operating Weight: 50460kg
- Power: 280kW/2100rpm
- Rated Bucket Capacity: 3.2m3
Introduction:
The ZG520 features a Cummins EFI engine, complying with Ⅲ-stage emission regulations, ensuring powerful performance, low fuel consumption, and high reliability. Its advanced negative flow hydraulic system, coupled with full power control, guarantees superior performance and comfort during operation. The precise fuel injection system ensures optimal combustion, enhancing fuel efficiency. Additionally, state-of-the-art 3D modeling and finite element analysis technology ensure the structural parts' reliability and stability.
Characteristics:
1. Equipped with Cummins' latest high-power EFI engine, delivering robust performance, low fuel consumption, and high reliability.
2. New-generation hydraulic system with a large displacement main pump and flow main valve, ensuring better coordination and easier operation.
3. Large-caliber cylinders and optimized hinge point arrangement enhance the machine's digging force, with an automatic supercharging function to increase digging force as the load increases.
4. The new generation control system intelligently adjusts hydraulic absorption power according to working conditions, optimizing system matching for maximum performance.
5. Features an 8-inch color anti-glare monitoring instrument and intelligent electronic monitoring system, providing vehicle maintenance information prompts, fault self-diagnosis, and alarms.
6. Comes with a safe and reliable new cab equipped with automatic air conditioning for operator comfort.
The ZG520 Crawler Hydraulic Excavator sets a new standard for power, efficiency, and durability, making it the ultimate solution for demanding excavation tasks across various industries.
Technical specification
| ITEM | UNIT | Specifications | |
| ZG520H | |||
| Operating weight | Kg | 50460 | |
| Rated power | kW/rpm | 280/2100 | |
| Rated bucket capacity | m3 | 3.2 | |
| Length | A | mm | 11657 |
| Width(600mm track) | B | mm | 3340/3562(Pedal) |
| Height | C | mm | 3998 |
| Turntable width | D | mm | 3214 |
| Height of cabin | E | mm | 3438 |
| clearance of counterweight | F | mm | 1276 |
| Engine cover height | G | mm | 2918 |
| Min. ground clearance | H | mm | 555 |
| Tail length | I | mm | 3740 |
| Turning radius of turntable | I' | mm | 3780 |
| Wheel base of track shoe | J | mm | 4470 |
| Length of chassis | K | mm | 5595 |
| Width of chassis | L | mm | 3340/3562(Pedal) |
| Track shoe gauge | M | mm | 2740 |
| Standard track width | N | mm | 600 |
| Max. traction | kN | 358 | |
| Traveling speed (H/L) | Km/hr | 5.5/3.1 | |
| Swing speed | rpm | 9.4 | |
| Gradeability | Degree(%) | 35(70%) | |
| Ground pressure | Kgf/cm2 | 0.85 | |
Working range
| ITEM | 6.55m Arm,2.5m Stick,3.2 m³Bucket | |
| ZG520H | ||
| Maximum digging radius | A | 10922 mm |
| Ground maximum digging radius | A' | 10691 mm |
| Maximum digging depth | B | 6453 mm |
| Ground maximum digging depth | B' | 6280 mm |
| Maximum vertical digging depth | C | 5663 mm |
| Maximum digging height | D | 11020 mm |
| Maximum dumping height | E | 7438 mm |
| Min. front turning radius | F | 4740 mm |
| Bucket digging force | ISO | 290 kN |
| Stick digging force | ISO | 270 kN |
Engine specifications
| Specifications | Model | Cummins QSM11(Ⅲ)-C375 | |
| Type | 6-cylinder in-line, four-stroke turbocharger | ||
| Emission | National Ⅲ | ||
| Cooling method | Water cooled | ||
| Bore diameter × stroke | mm | 125×147 | |
| Displacement | L | 10.8 | |
| Rated power | 280kW/2100rpm | ||
| Max. torque | N.m | 1898/1400rpm | |
| Engine oil capacity | L | 31.8-40.9 | |
| Rated diesel consumption | g/KW.h | 204 (1400rpm) | |
| Starter | 24V-7.2kW | ||
| Generator | 24V-70A |
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