Stacker Coal
Product Advantages
Wide range of applications: Stacker Coal is not only suitable for large coal, ports and other logistics centers, but also suitable for construction sites, metallurgy, chemical industry and other industries handling and drying work.
High efficiency and reliability: Stacker Coal has efficient operation capacity and transportation system, which can quickly complete a large number of material handling and stacking work.
Simple operation: The operation method of the bucket wheel machine is simple. It is only necessary to carry out operation training, be familiar with the functions of each operation interface and button, and understand the working principle and workflow of the equipment. This does not require a high level of skill for the user. If the safety specifications are set, it will be able to operate stably and efficiently.
Product Details
Product Introduction
Operation Principle
During material excavation, the Stacker Coal remains stationary and relies on the combined motion of its rotating front-mounted bucket wheel and slewing boom to continuously cut and collect materials. As the buckets rotate to a specific height, materials fall by gravity onto the receiving conveyor belt, then discharge via the hopper onto the unloading conveyor belt for transport to designated locations via trucks or other conveying systems. After completing a layer of excavation, the machine advances or the boom lowers to excavate the next layer. The depth of material removal is controlled by the machine’s forward movement or boom extension, while the excavation width is determined by the slewing speed. The excavator’s travel function is auxiliary, and its operation is continuous, with buckets dedicated solely to excavation, while material transport is managed by belt conveyors.
Structural Features
The Stacker Coal comprises six main systems: travel, slewing, working, conveying, electric drive, and hydraulic systems. Key characteristics include:
(1) Travel System
Most modern Stacker Coal utilize crawler-type travel systems, with a few employing walking mechanisms. Medium and small-sized units typically feature dual-track configurations, while large-scale excavators adopt multi-track designs (triple or quadruple tracks) to reduce ground pressure.
(2) Slewing System
Consisting of a slewing platform and drive assembly, the platform houses power units, drive mechanisms, control equipment, and the operator cabin. Equipped with a slewing bearing, the drive assembly enables 360° rotation around the vertical axis.
(3) Working System
Composed of the bucket wheel, boom, luffing mechanism, and drive components. The bucket wheel—a rotating wheel with evenly spaced buckets—is mounted at the boom’s front end. The boom is hinged to the platform’s portal frame and adjusted via wire ropes or hydraulic cylinders to position the bucket wheel across excavation planes. Boom lengths are either fixed or telescopic. The bucket wheel drive unit, including motors, safety couplings, and reducers, is installed on the boom’s front side to power rotation.
(4) Conveying System
Includes the receiving conveyor belt, hopper, and discharge conveyor belt. Bridge-connected excavators additionally feature transfer conveyor belts on the bridging structure.
(5) Electric Drive System
All units employ external power-supplied frequency converter systems.
(6) Hydraulic System
Primarily drives boom luffing and discharge arm positioning via hydraulic cylinders.
Project | Unit | STDL-500 | STDL-1000 | STDL-1600 | STDL-2000 |
| Overall dimensions (L × W × H) | mm | 17100×3600×4680 | 21100×4000×5900 | 25000×5000×72800 | 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 | 33375 | 33375 | 36000 |
| Maximum stack height of discharge conveyor | mm | 5500 | 6500 | 7000 | 8000 |
| Power | kW | 200 | 295 | 420 | 509 |
Company Profile
Founded on February 17, 2009, the company is a prominent manufacturer of mining equipment specializing in the development and production of machinery including mining mucking loaders, electric mining excavators, tunnel maintenance equipment, rock breaker systems, compact milling excavators (mini roadheaders), bucket-wheel stacker-reclaimers, coal unloading systems, and underground scaling machines. With an annual manufacturing capacity of 3,000 units/sets of mining and construction equipment, the organization caters to a wide range of industrial requirements across both underground and open-pit mining operations worldwide. The company's comprehensive product portfolio supports efficient resource extraction, infrastructure development, and material handling solutions for global mining sectors.
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