Top Applications Of Gantry Cranes In Shipyards

Índice

Introduction

Shipbuilding involves the fabrication and assembly of large steel structures, hull blocks, engines, and other heavy marine components. These operations require lifting equipment with high load capacity, large working spans, and reliable positioning performance. Gantry cranes are widely used in shipyards because they can handle oversized components efficiently and support different stages of ship construction and maintenance.

This article explains the main applications of gantry cranes in shipyards, including hull assembly, material handling, ship transfer, repair operations, and marine equipment lifting. It also covers the types of gantry cranes used in shipyards and key factors to consider when selecting a suitable crane solution.

What do gantry cranes do in a shipyard?

Gantry cranes handle heavy lifting and material movement across shipbuilding and repair areas. They are mainly used for hull block handling, section turning, equipment installation, and large-scale material transport.

Aplicação	Descrição
Hull Block Lifting	Lift and move prefabricated hull sections for assembly and positioning.
Hull Section Turning	Turn hull sections for welding, painting, inspection, and other work.
Material Handling	Move steel plates, structural parts, engines, propellers, and other heavy materials.
Equipment Installation	Lift and place main engines, marine equipment, and large structural components.
Ship Repair	Handle heavy parts during ship maintenance, replacement, and repair work.
Large-Span Lifting	Cover large dock and assembly areas with high lifting capacity and long crane spans.

Hull Block Lifting

Modern shipbuilding uses block construction, with the hull divided into large sections before final assembly. Gantry cranes lift these prefabricated blocks and move them to the required position for hull assembly.

Aplicações:

Lifting large hull blocks
Moving blocks between fabrication and dock areas
Positioning sections for assembly
Aligning hull blocks during construction

For large shipyards, gantry cranes can be designed with lifting capacities of 100–1,000+ tons, spans of 50–200 m, and lifting heights of 30–100 m, depending on the vessel and dock layout.

Hull Section Turning

Large hull sections often need to be turned during fabrication so workers can access different surfaces for welding, painting, and inspection. Gantry cranes equipped with multiple trolleys can handle these turning operations.

Aplicações:

Turning prefabricated hull sections
Changing the working position of ship blocks
Supporting welding and fabrication work
Positioning sections for inspection and painting

Material Handling

Steel and heavy marine components move through different areas of a shipyard during construction. Gantry cranes handle these loads between storage yards, fabrication workshops, and assembly areas.

Aplicações:

Steel plates
Structural components
Ship frames
Engines and propellers
Marine machinery

Equipment Installation

Large ship equipment must be lifted into position during hull construction and outfitting. Gantry cranes provide the lifting capacity and working height required for these installation jobs.

Aplicações:

Main engines
Propulsion systems
Marine machinery
Large structural components
Heavy shipboard equipment

Ship Repair

Gantry cranes are also used in ship repair yards and dry docks where heavy components need to be removed, replaced, or installed. Their large working range allows lifting work at different points across the dock.

Aplicações:

Removing and installing engines
Replacing large mechanical components
Lifting marine equipment
Moving heavy repair materials

Large-Span Lifting

Large shipyards require cranes to cover wide docks, assembly areas, and fabrication zones. Long-span gantry cranes can cover these areas while maintaining the lifting capacity required for large ship components.

Aplicações:

Long crane span
High lifting capacity
Sufficient lifting height
Wide travel range
Coverage of large assembly areas

Gantry cranes handle key shipyard operations, including hull block assembly, component transportation, and equipment installation. Their lifting capacity and coverage directly affect shipbuilding efficiency and production schedules.

Why Are Gantry Cranes Important in Shipyards?

High Lifting Capacity: Handle large hull blocks, engines, marine equipment, and other heavy loads.
Large Working Span: Cover wide docks, assembly areas, and fabrication yards with fewer lifting points.
High Lifting Height: Provide the clearance needed for large hull sections, ship modules, and tall structures.
Wide Operating Range: Move heavy loads across fabrication, assembly, storage, and dock areas.
Better Handling of Large Components: Reduce the need for multiple lifting operations when moving oversized ship sections.
Support for Shipbuilding Efficiency: Shorten material and block handling time and keep major assembly work moving.

Types of Gantry Cranes Used in Shipyards

Full Gantry Crane

A full gantry crane is a heavy-duty crane supported by two legs running on ground rails. It is mainly used in large shipyards for lifting and transporting heavy hull blocks, ship sections, and oversized marine structures. Its large span and high lifting capacity make it suitable for open dock areas and large-scale ship assembly operations.

Lifting Capacity: 100–1,000+ tons
Span: 50–200 m
Lifting Height: 30–100 m
Classe Trabalhadora: A5–A7

Pórtico Semi-Giratório

A semi gantry crane has one side supported by a runway structure and the other side supported by ground rails. It requires less installation space and is often used in shipyard workshops, fabrication areas, and equipment assembly zones where full gantry cranes are not required.

Lifting Capacity: 5–300 tons
Span: 10–50 m
Altura de Levante: 6–30 m
Classe trabalhadora: A3–A5

Rubber Tyred Gantry Crane (RTG)

A rubber tyred gantry crane is equipped with rubber tires instead of fixed rails, allowing movement between different working areas. It is commonly used for flexible material transfer, ship block storage, and handling operations where crane mobility is required.

Lifting Capacity: 20–300 tons
Span: 20–60 m
Lifting Height: 10–40 m
Travel Speed: 10–30 m/min

Shipyard Goliath Crane

A shipyard goliath crane is a large-scale gantry crane designed for ship construction projects. It features an extra-large span and high lifting capacity, making it suitable for lifting complete hull blocks, offshore structures, and large marine components in major shipyards.

Lifting Capacity: 300–2,000+ tons
Span: 80–250 m
Lifting Height: 50–120 m
Classe Trabalhadora: A5–A7

How to Choose a Gantry Crane for Shipyard Applications?

Shipyard gantry crane selection is based on the size of the vessel, weight of lifting loads, dock layout, and operating conditions. The crane specifications should match the requirements of hull assembly, material handling, equipment installation, and maintenance work.

Lifting Capacity: Choose the crane capacity according to the weight of hull blocks, ship components, and equipment. Large shipyards usually require cranes with capacities from hundreds to thousands of tons.
Span and Working Area: The crane span should fit the dock width and assembly area. A proper span provides enough coverage for shipbuilding operations.
Lifting Height: Select the lifting height based on ship size, block dimensions, and installation requirements. Large vessels require greater lifting height.
Working Class: Choose the working class according to operation frequency and load conditions. Shipyard cranes commonly use A5, A6, or A7 classes.
Crane Structure and Configuration: Select the crane structure based on site conditions, such as full gantry, semi-gantry, or customized designs. Double trolleys and remote control systems can be added for specific applications.
Manufacturer Experience and Service: Choose a manufacturer with experience in crane design, production, installation, and service. Customized solutions are available for large-span and heavy-duty shipyard projects.

A suitable gantry crane provides reliable lifting performance for shipyard operations. Proper selection of capacity, span, lifting height, and crane configuration helps improve handling efficiency and meet long-term production requirements.

For detailed guidelines on selecting the right shipyard gantry crane, see: Shipyard Gantry Crane Selection Guide: Capacity, Structure, and Application

Conclusão

Gantry cranes play an important role in shipyard operations, from hull block lifting and material handling to equipment installation and ship repair. The right crane selection depends on lifting capacity, span, lifting height, working class, and the specific requirements of the shipyard.

As an experienced gantry crane manufacturer, WEIHUA provides customized crane solutions for different shipbuilding and marine applications. Contacte-nos to discuss your project requirements and find a suitable gantry crane solution for your shipyard.

FAQ

What is a gantry crane used for in a shipyard?

A gantry crane is used to lift and move heavy ship components, including hull blocks, steel structures, marine equipment, and large machinery, during ship construction and repair.

Why are gantry cranes important in shipbuilding?

Gantry cranes handle large-scale lifting tasks that cannot be completed by standard lifting equipment. They improve the efficiency of hull assembly, material transfer, and equipment installation in shipyards.

How much weight can a shipyard gantry crane lift?

Shipyard gantry cranes usually have lifting capacities from 100 tons to over 1,000 tons. The capacity depends on vessel size, lifting requirements, and shipyard operation conditions.

What type of crane is used for ship hull assembly?

Large full gantry cranes and shipyard goliath cranes are commonly used for hull assembly. They provide high lifting capacity and large working spans for positioning heavy hull blocks.

How large can a shipyard gantry crane be?

Large shipyard gantry cranes can reach spans of 50–200 m, lifting heights of 30–100 m, and lifting capacities exceeding 1,000 tons for large vessel construction projects.

What is the difference between a gantry crane and a goliath crane?

A goliath crane is a type of heavy-duty gantry crane designed for large-scale shipbuilding applications. It usually features a larger span and higher lifting capacity compared with standard gantry cranes.

Can a gantry crane be customized for a shipyard?

Yes. Gantry cranes can be customized according to shipyard layout, lifting capacity, span, lifting height, working class, and specific operations such as hull block handling or equipment installation.

How long does a shipyard gantry crane last?

A well-designed and properly maintained shipyard gantry crane can typically operate for 20–30 years or longer. Service life depends on operating frequency, working conditions, maintenance, and component quality.

Índice

Introduction