Overview of ZOKECRANE Shipbuilding Gantry Crane
Engineered and manufactured by Henan Zoke Crane Co., Ltd., ZOKECRANE shipbuilding gantry cranes are built to withstand harsh coastal marine environments while delivering high structural stability. Designed with double main girders, upper and lower dual trolleys, and synchronized lifting controls, our shipbuilding gantry cranes enable smooth 180-degree flipping and precision positioning of heavy ship hull blocks weighing hundreds of tons.
Key Technical Specifications & Parameters
| Technical Parameter | Shipbuilding Gantry Crane Specification |
|---|---|
| Crane Type | Double Girder Shipbuilding Gantry Crane / Goliath Crane |
| Lifting Capacity (SWL) | 100 Tons to 1,200+ Tons (Custom engineered capacities available) |
| Span Length | 30 meters to 180+ meters (Customized for dry docks and berths) |
| Lifting Height | 20 meters to 80+ meters (Above rail level) |
| Trolley Configuration | Dual Trolley Design (Upper trolley with two hooks + Lower trolley with one hook) |
| Working Duty Rating | FEM 2M, 3M / ISO M5, M6, M7 (Heavy Marine Duty) |
| Wind Protection System | Rail clamps, hydraulic storm anchors, wind speed anemometers |
| Surface Protection | Multi-layer marine-grade epoxy anti-corrosion paint system |
| Certifications & Compliance | ISO 9001, CE Certified, SGS Verified, Marine Classification Society Standards |
Core Product Advantages & Marine Features
- Synchronized Block Flipping Capability: Dual upper and lower trolley cooperation allows operators to lift, transport, and smoothly flip 180-degree ship hull blocks in mid-air safely.
- Marine-Grade Anti-Corrosion Defense: High-performance C5-M marine epoxy paint coating and stainless steel control enclosures protect the structure from salt-spray, high humidity, and ocean weather.
- Advanced Storm Safety Anchoring: Equipped with automatic rail clamps, hydraulic pin anchoring systems, and real-time anemometers to prevent wind-induced movement during typhoons and coastal storms.
- Precision Synchronization & Anti-Sway: PLC-controlled variable frequency drives (VFD) ensure synchronized lifting across multiple hooks and minimize structural sway during high-elevation positioning.
Industrial Applications of Shipbuilding Gantry Cranes
ZOKECRANE shipbuilding gantry cranes are essential heavy lifting equipment deployed in coastal and inland marine construction facilities globally:
1. Dry Dock Ship Assembly
Used for straddling large dry docks, transporting prefabricated ship hull sections, and positioning heavy machinery modules directly into vessel hulls.
2. Slipway & Berth Construction
Lifts and aligns structural hull components along shipbuilding slipways during vessel hull construction prior to launching.
3. Offshore Platform & Module Fabrication
Handles giant steel jackets, deck modules, floating production storage and offloading (FPSO) equipment, and offshore platform structures.
4. Ship Repair & Conversion Yards
Facilitates major vessel retrofits, engine replacements, structural hull lengthening, and heavy marine equipment repair operations.
Frequently Asked Questions (Product FAQs)
How does a shipbuilding gantry crane rotate and flip heavy ship hull blocks?
ZOKECRANE shipbuilding gantry cranes utilize an upper trolley with two independent hoist hooks and a lower trolley with one hoist hook. By independently adjusting the hoisting speeds and hook distances of the upper and lower trolleys, the crane can safely turn and rotate massive steel hull blocks up to 180 degrees in mid-air.
How do your cranes withstand severe coastal wind storms and typhoons?
Our shipyard cranes are equipped with redundant wind-protection safety mechanisms. These include digital anemometers that alert operators to rising wind speeds, automatic electro-hydraulic rail clamps, and heavy-duty mechanical storm anchorage pins that lock the crane securely to the ground foundation during typhoons.
What anti-corrosion measures are applied for marine environments?
To combat marine salt-spray corrosion, all steel surfaces undergo SA2.5 shot blasting followed by a multi-layer marine-grade epoxy zinc-rich coating system (C5-M specification). Electrical cabinets are rated IP65/IP66 and constructed from stainless steel or aluminum-zinc alloys.
Can ZOKECRANE shipbuilding cranes be customized to straddle existing dry docks?
Yes. Every shipbuilding gantry crane is custom-engineered based on your shipyard’s layout, rail track center distance, clear span requirements, gate clearance, and dry dock dimensions.
Export & Logistics FAQs for International Buyers
Which countries does ZOKECRANE supply shipbuilding gantry cranes to?
ZOKECRANE lifting equipment is exported worldwide, serving shipyards and industrial projects in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other maritime destinations across Asia, Europe, Africa, and the Americas.
How are large shipbuilding gantry crane components transported internationally?
Due to their large dimensions, heavy structural steel girders and legs are manufactured in modular sections for shipment via heavy-lift bulk vessels or open-top/flat-rack ocean containers. Mechanical assemblies, trolleys, winches, and electrical systems are vacuum-packed and housed in export-grade fumigated wooden cases.
What quality and marine certifications back ZOKECRANE shipyard cranes?
Our manufacturing and quality systems hold ISO 9001 compliance, European CE certification, and SGS verification. We can also coordinate third-party marine classification inspections (such as DNV, ABS, BV, or LR) according to customer project specs.
What shipping terms and manufacturing timelines do you provide?
We support standard international commercial terms including FOB, CIF, CFR, DDU, and DDP. Depending on structural span, height, and tonnage capacity, manufacturing timelines typically range from 45 to 90 business days.
How does ZOKECRANE manage overseas assembly and erection of shipyard cranes?
Given the immense scale of shipbuilding gantry cranes, ZOKECRANE provides comprehensive engineering support, including 3D erection drawings, structural foundation calculation reports, and step-by-step video guides. We also dispatch experienced field engineering teams directly to your shipyard to manage on-site erection, crane commissioning, load testing, and local operator certification.