Q1:What is the difference between a shipbuilding gantry crane and a general‑purpose gantry crane?

A shipbuilding gantry crane is purpose‑built for shipyard conditions: higher duty class (M7–M8), much larger capacity (up to 3,000 t), wider spans (to 200 m), specialised anti‑corrosion protection, and multi‑trolley configurations for complex overturning. A general‑purpose crane is rarely a suitable substitute for serious shipbuilding work.

Q2: What lifting capacities and spans are available?

Capacities typically range from 100 to 3,000 tons; spans from 20 to 200 metres (larger available on request). All specifications are customisable based on your yard requirements.

Q3: What international certifications do these cranes carry?

Our cranes are certified to CE, ISO 9001:2015, GOST, SGS, TUV, BV, and others. CE compliance with Machinery Directive 2006/42/EC is standard for European deliveries.

Shipbuilding Gantry Crane | Heavy-Lift Solutions

ShipBuilding Gantry Crane

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Capacity:

150-900T (customizable)

Lifting Height:

30M (customizable)

Voltage/Hertz:

(customizable)

Working Class:

A5-A8

Span:

18-35M (customizable)

Apply: Shipbuilding gantry cranes are essential in large shipyards for lifting and assembling heavy hull sections, boosting modular efficiency for high‑value vessels.

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Introduction

Technical Data

Application

Features

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PRODUCT INTRODUCTION

A Shipbuilding Gantry Crane (also known as a Shipyard Gantry Crane or Goliath Crane) is a heavy-duty rail-mounted portal crane purpose-built for ship assembly, hull block lifting, and drydock operations. It is designed with large lifting capacity, wide span, and substantial lifting height, specially used for large-scale hull section transport, abutment joining, and overturning in dockyards.

Unlike standard industrial gantry cranes, shipbuilding gantry cranes operate at working grades M7–M8 (ISO 4301), meaning they handle frequent, heavy, and shock-inducing load cycles without fatigue failure. The structure consists of a rigid outrigger, a flexible outrigger, a main beam (available in single-girder or double-girder configuration), hoisting trolleys, a trolley traveling mechanism, and an electrical control system.

TECHNICAL DATA

Parameter	Specification	Parameter	Specification
Rated Loading Capacity	Other, 150-900T	Max. Lifting Height	30M
Warranty	1 Year	Machinery Test Report	Provided
Video outgoing-inspection	Provided	Core Components	PLC, Engine, Bearing, Gearbox, Motor, Gear
Rated Lifting Moment	Different	Span	18-35M
Place of Origin	Henan, China	Power Supply	3 Phase 380V 50hz
Work duty	A5-A8	Crane feature	Ship building gantry crane

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APPLICATION

1.Hull Block Lifting and Positioning in Pre‑assembly Yards
The crane transports prefabricated hull blocks (often weighing several hundred tons) from the block assembly shop to the stockyard or directly to the berth, and positions them precisely on the keel blocks using mm‑level accuracy.

2.Hull Block Overturning / Flipping
During welding and painting, blocks need to be turned over. The crane’s upper and lower trolleys work in coordination to safely flip large sections (up to 1,500 t) while maintaining stability, allowing double‑sided access for workers and automated equipment.

3.Tandem Lifting of Mega‑Blocks
For extra‑heavy or oversized sections that exceed the capacity of a single crane, two shipbuilding gantry cranes are synchronised via PLC master‑slave control to lift loads in tandem, with deviation kept within ±5 mm – essential for constructing large container ships and LNG carriers.

4.Final Assembly and Erection in Dry Dock
In the building dock, the crane lifts and lowers each block into its final position, aligns it with adjacent sections, and holds it steady while welding and joining are carried out. This is the core operation for completing the hull structure.

5.Ship Repair and Major Equipment Replacement
During vessel overhauls, the crane removes heavy components such as main engines, propellers, rudders, and deck machinery. It also lifts replacement parts and assists in dry‑docking operations for both commercial and naval vessels.

6.Offshore Platform and FPSO Module Fabrication
The crane handles topside modules, jacket legs, and mooring structures in offshore fabrication yards. Its high duty class (M8) supports the intensive 24/7 production schedules typical of module assembly, and its wide span covers large assembly areas without repositioning the crane.

FEATURES

1.Heavy‑lift capability – handles loads up to 3,000 tons, allowing safe transport and erection of complete hull blocks and oversized components.

2.Multi‑trolley coordinated operation – upper and lower trolleys work independently or in tandem to perform single lifting, combined lifting, block overturning (flipping), and horizontal rotation with precise synchronisation.

3.Precise positioning control – VVVF frequency drives and PLC‑based master‑slave synchronisation ensure millimetre‑level accuracy (±10 mm) for single cranes and keep deviation within ±5 mm when two cranes lift in tandem.

4.Comprehensive safety systems – integrated overload limiters, electronic anti‑collision radar, anemometers (wind sensors), rail clamps, and ground anchors protect the crane and personnel even in stormy coastal conditions.

5.Marine‑environment durability – heavy‑duty anti‑corrosion coating (ISO 12944‑6 C5‑M), hot‑dip galvanised fasteners, and IP54‑rated electrical enclosures resist salt spray, humidity, and long‑term exposure to harsh shipyard atmospheres.