Bucket Wheel Excavator
Product Advantages
High efficiency: The Bucket Wheel Excavator has a strong loading capacity, which can load a large amount of materials at one time and transport them to the destination. Its loading and unloading speed is fast, can complete a large number of handling tasks in a short time, and significantly improve production efficiency. The adaptability is very wide.
High efficiency and reliability: Bucket Wheel Excavator has efficient operation capacity and transportation system, which can quickly complete a large number of material handling and stacking work. The advanced control and detection system can monitor the state of the machine in real - time and improve the reliability and safety of the equipment operation.
Product Details
Product Introduction
1 Operational Principle
During digging operations, the bucket-wheel excavator remains in a fixed position. Material is excavated through the combined actions of the rotating bucket wheel mounted at the front and the slewing motion of the boom. As the buckets fill and rotate upward, they eventually reach a height where material is gravity-discharged onto a receiving conveyor. A hopper then directs the material to a discharge conveyor, where it is loaded into haul trucks or other conveying equipment for removal. Once a bench is fully excavated, the machine either moves forward or lowers its boom to access the next layer. Digging depth is determined by the travel distance or boom extension, while cutting width depends on the slewing speed. The excavator’s mobility is secondary to its continuous digging and conveying functions, which are carried out by the rotating bucket wheel and the conveyor system, respectively.
1.2 Structural Characteristics
The bucket-wheel excavator is composed of six primary subsystems: the undercarriage, slewing assembly, digging mechanism, conveyor system, electric drive, and hydraulic system. Notable features include:
(1) Undercarriage
Modern bucket-wheel excavators predominantly adopt crawler-based undercarriages, though some models utilize walking mechanisms. Medium and smaller units are usually equipped with two crawlers, whereas larger machines often employ multiple-crawler designs (such as three or four crawler tracks) to distribute ground pressure more effectively.
(2) Slewing System
This system includes a rotating platform and its drive components. The platform supports power generation units, drive machinery, control systems, and the operator’s cab. A slewing ring bearing allows the entire platform to rotate 360° about the vertical axis.
(3) Digging System
The digging system is made up of the bucket wheel, the boom, a luffing mechanism, and the corresponding drives. The bucket wheel—a rotating wheel with multiple evenly spaced digging buckets—is attached to the front section of the boom. The rear of the boom is pivot-mounted to the portal frame of the upper structure, allowing it to be raised and lowered through either wire ropes or hydraulic cylinders to position the bucket wheel across different digging horizons. Booms may be of fixed or telescopic type. The drive assembly (including motor, safety clutch, and reducer) is mounted offset near the front of the boom to power the rotation of the bucket wheel.
(4) Conveyor System
This subsystem comprises the receiving conveyor, a hopper, and the discharge conveyor. In bridge-type bucket-wheel excavators, an extra transfer conveyor is mounted on the bridge structure.
(5) Electric Drive System
Power is supplied from an external source, with frequency converters used to regulate motor speed and operation.
(6) Hydraulic System
Hydraulic cylinders serve as the primary actuators for adjusting the position of the digging and discharge booms.
Project | Unit | STDL-500 | STDL-1000 | STDL-1600 | STDL-2000 |
| Overall dimensions | mm | 17100×3600×5680 | 21100×4000×5900 | 25000×4200×6880 | 30000×5900×8300 |
| Bucket wheel diameter | mm | 3000 | 3600 | 4500 | 5800 |
| Bucket wheel arm length | mm | 6980 | 8280 | 9280 | 11280 |
| Bucket wheel volume | m³/pc | 0.2 | 0.3 | 0.4 | 0.42 |
| Number of buckets | piece | 8 | 8 | 10 | 14 |
| Rated output | m³/h | 500 | 1000 | 1600 | 2000 |
| Material density | t/m³ | (0.8-1.8)×10³ | (0.8-1.8) ×10³ | (0.8-1.8)×10³ | (0.8-1.8) ×10³ |
| Length of discharge arm | mm | 7000+3000 | 8900+3400 | 9000+4000 | 9000+5000 |
| Length of discharge conveyor | mm | 25000 | 28000 | 32000 | 36000 |
| Maximum stack height of discharge conveyor | mm | 5500 | 6500 | 7000 | 8000 |
| Power | kW | 155 | 295 | 375 | 509 |
| Conveyor specification | mm | 1000 | 1200 | 1400 | 1400 |
| Conveyor speed | m/s | 2.6 | 2.8 | 3 | 2.8 |
| Equipment weight | T | 68 | 85 | 138 | 168 |
| Bucket wheel speed(rpm) | r/min | 8 | 7.4 | 7 | 6.8 |
| Travelling Speed. | m/min | 32 | 26 | 18 | 15 |
| Luffing angle | ° | 20 | 20 | 18 | 18 |
| Slew angle | ° | 150 | 150 | 140 | 135 |
Company Strength
Founded in February 2009, Shandong Shante Heavy Industry Machinery Co., Ltd is a natural person wholly-owned enterprise engaged in research and development, production, manufacturing and sales of mechanical equipment in coal mines, water conservancy projects and non-coal mines. The company has eight series of more than 20 varieties, mainly including bucket stacker reclaimer, mining electric excavators, mining mucking loader, rock breaker machine, coal unloaders, roadheader, multifunctional mucking loader, underground scaler, etc. Its products are widely used in coal and non-coal mines, water conservancy projects, railway construction and tunnel, culvert excavation, loading and unloading, transferring and stacking of railway port cargo. The domestic market covers 28 provinces, municipalities and autonomous regions. The products are exported to Russia, South America, Southeast Asia and Africa, and have served more than 30 countries and regions around the world.
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