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Single-girder Gantry Crane: the "precision weightlifter" of the yacht manufacturing workshop


Inside the airy yacht manufacturing facility, a single-girder gantry crane stretches out like a giant, gilded arm. With its single-girder structure, it transcends spatial constraints, adapting to the shipbuilder's wide-span workshops and precisely lifting yacht sections and outfitting equipment. Its millimeter-level positioning accuracy tames the tight tolerances of fiberglass hull molds. Driven by a variable frequency drive, it lifts and traverses with fluidity, supporting both the massive hull and the delicate installation of interior components.

Product Introduction

Inside the airy yacht manufacturing facility, a single-girder gantry crane stretches out like a giant, gilded arm.

With its single-girder structure, it transcends spatial constraints, adapting to the shipbuilder's wide-span workshops and precisely lifting yacht sections and outfitting equipment. Its millimeter-level positioning accuracy tames the tight tolerances of fiberglass hull molds. Driven by a variable frequency drive, it lifts and traverses with fluidity, supporting both the massive hull and the delicate installation of interior components.

From hull assembly to equipment loading, the single-girder gantry crane, with its lightweight and precise design, infuses efficiency into intelligent yacht manufacturing, making every lift a milestone in the creation of a high-end vessel.

Single-girder gantry cranes offer four core advantages in yacht manufacturing.
1. Spatial Adaptability: Lightweight Architecture Unlocks Dockyard Potential
The single-girder design reduces dead weight by 20%-30%, reducing load-bearing design investment. The large span (≤25 m) covers the yacht assembly area, and the high-clearance layout eliminates obstructions to the hull lifting path, adapting to the spacious, high-clearance spatial characteristics of yacht workshops and enabling more flexible dockyard planning.
2. Precision Protection: Micron-level Control Protects Hull Quality
The variable frequency drive + servo control system achieves lifting/traversing positioning accuracy of ±2 mm, ensuring zero-error alignment of fiberglass hull mold assembly and high-end outfitting components, preventing damage from rigid collisions.
A stable lifting algorithm ensures a hoist swing of less than 50 mm, ensuring the safe transfer of precision yacht components (such as radar systems and interior panels). 3. All-Scenario Compatibility: Variable speeds for both light and heavy loads.
Efficiency Mode: When unladen, the lifting speed reaches 8 m/min, enabling rapid transfer of hull sections and shortening production cycle times.
Precision Mode: When fully laden, the speed drops to 0.5 m/min, enabling precise positioning of valuable components such as engines and yacht interiors. A single device covers the entire process, from hull assembly to detailed commissioning.
4. Cost Breakthrough: Full-Lifecycle Cost Reduction and Asset-Light Operations.
Procurement: Single-girder cranes are over 35% cheaper than double-girder cranes, reducing initial equipment investment for shipbuilders.
Operation and Maintenance: The simple structure reduces maintenance points by 40%, and energy consumption is 12%-18% lower than traditional cranes. Combined with the high-variety, small-batch nature of yacht manufacturing, it is more suitable for the cost control logic of flexible production.

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