Resumen
On April 25, 2026, Henan Haitai delivered a 600 ton MEC600 shipyard gantry crane to Zhejiang Jinchuan Shipbuilding Co., Ltd. in Zhejiang, China. Rated 2×150t+300t on the main hoists plus a 20t auxiliary hook across a 50-meter span, the crane lifts and joins hull blocks for vessels up to the 100,000-ton class that the yard builds. Laser positioning and anti-sway control keep the load steady during synchronized lifts, and the installed unit is shown on site in Zhejiang, spanning the shipway between its two legs.
600 Ton Shipyard Gantry Crane Case Study
Descripción general del proyecto
Joining hull blocks is the highest-stakes lift in any shipyard — sections weighing hundreds of tons have to come together within millimeters of alignment, on a schedule that does not allow for a crane that can not hold position under load.
That is the job behind this order: on April 25, 2026, Henan Haitai delivered a 600 ton MEC600 shipyard gantry crane to Zhejiang Jinchuan Shipbuilding Co., Ltd., installed over the yard’s shipway in Zhejiang, China. The shipyard crane’s legs and main girder are marked with the yard’s name and the MEC600 model designation — 2×150+300/20t-50m — visible in the installation photos, which show the completed structure straddling the shipway with a mobile crane still positioned alongside from the erection process.
600 Ton Gantry Crane China Project Information Table
| Artículo | Especificación |
|---|---|
| Modelo | MEC600 |
| Tipo de grúa | Grúa pórtico para astillero |
| Capacidad de elevación nominal | 600 Tons (Combined) |
| Configuración del polipasto | 2×150t (Twin-Hook, Synchronized) + 300t Main Hoist + 20t Auxiliary Hoist |
| Durar | 50 m |
| Positioning & Control | Millimeter-Level Laser Positioning, Intelligent Anti-Sway Control |
| Sistemas de seguridad | 20+ Interlocked Functions (Overload Protection, Wind-Speed Warning, Fault Self-Diagnosis) |
| Solicitud | Hull Block Assembly & Joining, Vessels up to 100,000-Ton Class |
| Clasificación | CCS / BV / ABS / LR (per customer requirement) |
| Fabricante | Compañía de Industria Pesada Henan Haitai, Ltd. |
| Cliente | Zhejiang Jinchuan Shipbuilding Co., Ltd. |
| Ubicación | Zhejiang, China |
| Delivery Date | April 25, 2026 |
MEC600: What 2×150+300/20t-50m Means?
The model code on the girder is not decoration. It is the shipbuilding gantry crane’s full lifting specification:
- Two main hoist systems share the load: a twin-hook unit rated 2×150 tons for synchronized two-point lifts, and a second main hoist rated 300 tons for single-point work, together giving the crane its 600-ton combined capacity. A 20-ton auxiliary hoist handles lighter, faster-cycle lifts — rigging changes, small component moves — without tying up the main hoists for jobs that do not need them.
- The 50-meter span is sized to clear the shipway and the hull sections being built on it, wide enough that the crane does not have to be repositioned between a block waiting at the yard’s edge and its final position in the hull.
- That multi-hook arrangement is standard practice for large-tonnage shipyard gantry cranes, because a single 600-ton hook would be oversized and imprecise for the smaller lifts a yard runs far more often than its heaviest ones.
Heavy-duty Shipbuilding Gantry Crane Built for Large-Block Hull Assembly
Zhejiang Jinchuan Shipbuilding uses the crane to cover hull construction for vessels up to the 100,000-ton deadweight class, where hull blocks are assembled and joined at a scale that rules out chain hoists or smaller mobile cranes for the final lifts. The crane’s control system runs on a closed-loop basis with millimeter-level laser positioning and anti-sway control, so a block can be lowered into alignment against an adjoining section without the drift or pendulum swing that makes fine positioning slow and risky on a less-controlled system.
Safety redundancy matters as much as lifting capacity at this tonnage: the crane carries more than 20 interlocked safety functions, including overload protection, wind-speed warning, and fault self-diagnosis, layered across the hoisting, travel, and control systems rather than relying on a single cutoff. For a yard running the crane through repeated heavy lifts on a production schedule, that redundancy is what keeps a single fault from becoming a stopped shipway.
Installation Photos
What This Changes for the Yard’s Shipway?
Haitai Crane’s own commissioning data for this project points to a shipway efficiency gain of more than 40 percent once the crane replaced the yard’s previous lifting approach for large-block work — largely because a single 600-ton lift now does what used to take multiple smaller lifts and repositioning moves. That also cuts the number of times a crew has to rig and re-rig a hull section, which is where a lot of the manual handling risk on a shipway comes from.
Conclusión
Installed on Zhejiang Jinchuan Shipbuilding’s shipway on April 25, 2026, this 600 ton MEC600 gantry crane is built around the lift a shipyard can not improvise around: joining hull blocks precisely, repeatedly, and without adding risk to the schedule. For a yard evaluating a similar order, the model code — 2×150+300/20t-50m — is the starting point for the conversation, but the real specification comes from the vessel class, block weights, and shipway layout the crane has to work within.
Why Choose Haitai Crane?
Henan Haitai Crane has spent more than a decade building lifting equipment specifically for shipbuilding, and the MEC600 reflects that focus rather than a general-purpose gantry crane adapted for yard use. Multi-hook load sharing, laser positioning, anti-sway control, and the safety interlock package are standard engineering practice on Haitai’s shipyard cranes, not options bolted onto a smaller design to reach 600 tons.
For the Zhejiang Jinchuan project, that meant sizing the crane’s span and hoist configuration to the yard’s specific shipway and the vessel classes it builds, rather than offering a fixed catalog unit. Haitai Crane’s shipyard crane range extends from mid-capacity hull-handling cranes through 600-ton and above-ton gantry cranes, built at the company’s Henan facility and certified to CCS, BV, ABS, or LR depending on the customer’s classification requirement.
Parameters & Requirements Checklist for Customization
Buyers specifying a large-tonnage shipyard gantry crane should confirm the following before requesting a quotation:
| Parámetro | What to Confirm? |
|---|---|
| Required Lifting Capacity | Combined and per-hook capacity needed (main hoist(s), auxiliary hoist), and whether synchronized two-point lifting is required |
| Durar | Clear span needed to cover the shipway, dock, or working area |
| Lift Height / Hook Travel | Maximum lift height above rail and any under-hook clearance requirements |
| Vessel Class / Block Weight Range | Largest and most frequent hull block or component weights the crane will handle |
| Rail / Foundation Details | Rail gauge, ground-bearing capacity, and foundation type at the installation site |
| Positioning & Control Requirements | Whether laser positioning, anti-sway control, or remote/cab operation is needed |
| Fuente de alimentación | Site voltage, frequency, and available power capacity |
| Classification Society | CCS, BV, ABS, LR, or another society tied to the project’s flag state or regulatory requirement |
| Operating Environment | Wind loading, ambient temperature range, and outdoor exposure conditions |
| Installation Timeline | Target commissioning date and site readiness schedule |
FAQs – Professinal Shipyard Gantry Crane Manufacturer in China
Q1. What does the MEC600’s 2×150+300/20t-50m rating mean?
It is the 600-ton shipyard crane’s full hoist and span specification: a twin-hook main hoist rated 2×150 tons for synchronized lifts, a second main hoist rated 300 tons, a 20-ton auxiliary hoist for lighter work, and a 50-meter span. Combined, the main hoists give the crane its 600-ton rated capacity.
Q2. How is 600-ton lifting capacity achieved with two separate hoist systems?
Large-tonnage shipyard gantry cranes typically split capacity across multiple hoists rather than using one oversized hook, since most lifts on a shipway are lighter than the shipbuilding crane’s maximum. The 2×150-ton twin-hook system and the 300-ton main hoist can be used independently for smaller work or together for the heaviest hull-block lifts.
Q3. What safety systems protect a lift this size?
The heavy-duty crane runs more than 20 interlocked safety functions, including overload protection, wind-speed warning, and fault self-diagnosis, alongside millimeter-level laser positioning and anti-sway control to keep large loads stable and accurately placed during hull block assembly.
Q4. Can Haitai certify this crane to different classification societies?
Yes. Haitai supplies shipyard gantry cranes certified to CCS, BV, ABS, or LR depending on the customer’s flag state and class requirements, so the crane’s documentation matches what the shipyard’s own certification process calls for.
Q5. What information does Haitai need to quote a shipyard gantry crane like this one?
Required lifting capacity and hoist configuration, span, lift height, vessel class and block weight range, rail and foundation details, classification society, and site power supply; Haitai’s engineering team can size and configure a crane once these are confirmed.
