- A5
The double girder gantry crane represents a robust, track-based lifting solution engineered for medium to heavy-duty industrial applications. Its core structure integrates two primary girders, forming a stable overhead bridge that travels along ground-installed rails. This configuration ensures superior load distribution and enhanced stability compared to single-girder alternatives.
With a standard lifting capacity ranging from 5 to 10 metric tons and an optimal span of 18 to 35 meters, this crane is designed for demanding tasks in warehouses, shipping yards, and manufacturing facilities. The system operates seamlessly with a coordinated hoist and trolley mechanism. The trolley moves laterally along the twin girders, while the hoist performs the vertical lifting, enabling precise load positioning across the entire work area.
Key operational components include:
A reinforced gantry frame, comprising the main girders, end carriages, and leg assemblies, which provides the structural backbone.
The trolley travel system, which facilitates smooth cross-directional movement.
The hoisting unit, responsible for the actual lifting and lowering of loads.
A centralized electrical control system for intuitive operation.
Engineered for reliability, this crane is rated for working temperatures from -20°C to +40°C and complies with A5, A6, and A7 duty cycles, indicating its suitability for moderate to heavy use with frequent starts and stops. Optional cantilever extensions on the main girders or the use of a jib-equipped trolley can further expand its operational reach, offering greater flexibility for specific layout challenges.
The Electric Double Girder Grab Gantry Crane serves as a specialized handling system for bulk material operations in demanding outdoor environments. Its unique grab mechanism replaces conventional hooks, making it indispensable for operations involving loose, granular, or lump materials.
Primary Operational Environments:
Bulk Material Storage Facilities: This crane is fundamental to the operation of open-air storage yards for raw materials. It efficiently handles the stacking, reclaiming, and blending of bulk commodities like coal, metallic ores, crushed minerals, and foundry sand. The crane travels on ground rails, covering large stockpile areas and transferring materials between piles and conveyor belts or waiting trucks.
Railway Freight and Transshipment Hubs: Positioned alongside or over railway tracks, the crane performs critical loading and unloading tasks for freight cars and hopper wagons. It directly grabs materials from railcars for stockpiling or transfers stockpiled materials into railcars for shipment, streamlining logistics at industrial rail sidings and transshipment centers.
Port and Waterfront Operations: In smaller ports or designated areas within larger harbors, this gantry crane manages bulk cargo such as sand, gravel, and agricultural products (e.g., grain, fertilizers). It facilitates the transfer of materials between barges, storage areas, and land-based transport, offering a flexible solution where fixed infrastructure is limited.
Industry-Specific Workflows:
In Steel Mills and Foundries: It is used for handling the raw material mix, including limestone, coke, and iron ore, feeding them into production lines or preprocessing areas.
In Power Generation: At coal-fired power plants, the crane is tasked with moving coal from storage piles to crushers and ultimately to the plant's boiler feed system.
In Large-Scale Construction Projects: It manages aggregate materials (sand, stone) in centralized mixing plants, ensuring a continuous supply for concrete production.
The crane's double girder design provides the rigidity and strength required for the dynamic forces encountered during grab operation. Its rail-mounted travel ensures comprehensive coverage of the work area, while the electrically powered grab allows for deep penetration into materials and secure lifting, ensuring high-cycle efficiency and operational reliability in all weather conditions.
