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 |
1. adopts electronic control to electronically control the high pressure fuel injection in order to optimize fuel injection and reduce fuel consumption
2. reduces fuel consumption and noise by synchronizing control to reduce excess engine rotation under light operation.
1.high efficiency
2.high response
3.large displacement
4.abundant control methods
5.high power output density
6.high self-priming capability
7.high reliability
1.Linear travel circuit
2.Boom priority, boom priority in compound action of boom and bucket
3.Slewing priority, slewing priority in compound action of bucket slewing
4.Bucket merge, standby merge circuit
5.Bucket regeneration
6.Boom regeneration
7.Bucket, boom load holding valve.
1.High stress area → Use of high tensile strength steel plate
2.Shaft seat area: Use of forged parts
3.Middle section: Welding of large cross-section spacer plate
The "Central Load-bearing Structure" reduces stress by distributing the force directly to the chassis through the upper structure. Improves durability and extends machine life.
Reinforced design of the beam structure, where stress is concentrated, increases the strength of the cross-section by more than 35% compared to conventional models. It is more adaptable to severe working conditions and large loads.
The wear-prone parts of the bucket (front, sides and bottom) are reinforced with super wear-resistant welded plates. The average service life of the bucket is more than 20% longer than that of the traditional model.
