Application Scenarios for Four-Hoist Mobile Gantry Cranes

The core advantage of the four-hoist mobile gantry crane (or "four-hoist tire crane") lies in its capabilities for multi-point synchronous lifting, load leveling for long or large-surface workpieces, and coordinated operation across multiple lifting points. It is particularly well-suited for the handling and installation of heavy loads that are long, large, thin, prone to deformation, or require uniform force distribution across multiple points.

I. Core Application Scenarios (Grouped by Industry)
1. Steel Structures / Bridges / Construction
Lifting of steel beams, steel columns, box girders, and trusses: The four hoists lift synchronously to ensure that long structural members remain level and free from torsional deformation.
Handling of large precast components (e.g., concrete box girders, large roof panels): Enables multi-point load bearing, ensuring smooth transfer and installation.
Installation of steel structures for high-rise buildings; lifting of curtain walls and large cladding panels.
2. Shipbuilding and Offshore Engineering
Lifting and transport of hull sections, superstructures, and hatch covers: Features large spans and multi-point synchronization to effectively control deformation.
Installation of marine equipment (e.g., main engines, generators, large pump sets): Facilitates precise alignment using multiple lifting points.
Transfer of offshore platform modules and jacket structure components.
3. Heavy Machinery and Equipment Manufacturing
Integrated lifting and relocation of large machine tools, presses, generator sets, and transformers.
Assembly and transfer of wind turbine towers, nacelles, and hubs (particularly for ultra-long tower sections).
Installation and positioning of pressure vessels, large storage tanks, and reactors.
4. Logistics and Warehousing (Heavy / Long Loads)
Cross-zone transfer of ultra-long pipes, structural profiles, steel plates, and steel coils.
Loading, unloading, and site transfer of complete heavy machinery units or entire production lines.
Port and yard operations involving the loading and unloading of ultra-long items, irregularly shaped cargo, and heavy containerized or bulk goods.
5. Other Typical Scenarios
Power Engineering: Lifting of large transformers, GIS equipment, and tower components for substations.
Municipal / Rail Transit Projects: Installation of components for subway tunnel boring machines (TBMs), large tunnel segments, and bridge bearings.
Paper Mills / Board Manufacturing Plants: Smooth transfer of large paper rolls, large-format boards, and coiled materials. Maintenance / Dismantling: Segmented removal and transport of components for large-scale equipment, boilers, and industrial furnaces.
II. Key Suitability Factors for the Four-Hoist Rubber-Tyred Gantry Crane (Why Choose It?)
Multi-Point Synchronization + Independent Adjustment: The four hoists can operate in synchronized lifting/lowering mode or be individually fine-tuned. This enables precise horizontal leveling and attitude control for long or large-surface loads, effectively preventing single-point overloading and structural deformation.
Trackless Mobility: Equipped with rubber tires, the crane can move freely across factory grounds, storage yards, and construction sites without the need for fixed rails, allowing for rapid switching between multiple workstations.
Gantry-Style Coverage: Featuring a wide span, the crane can straddle transport vehicles, production lines, and storage areas, ensuring highly efficient utilization of workspace.
Flexible Configuration: Can be configured with a double-girder system (featuring four trolleys and four hoists) or a single-girder system with multiple lifting points, allowing for adaptation to workpieces of varying lengths and weights.
III. Key Considerations for Model Selection and Application Matching
Priority Candidates (Long, Large, or Deformation-Prone Workpieces): Steel beams, box girders, ship hull sections, and large-format metal plates.
Requirements for Uniform Multi-Point Load Distribution: Large-scale machinery, storage tanks, and generator sets.
Trackless Operation / Multiple Workstations / Frequent Relocation: Factory interiors, construction sites, and storage yards.
Lifting Capacity: Typically ranges from 10 to 50 tons; the combined lifting capacity of the four hoists must be matched to the specific load requirements.
Span: Selected based on the length of the workpiece and the width of the operational access aisle (common spans range from 8 to 20 meters).