What is an MG Type Double Girder Hook Gantry Crane?

An MG Type Double Girder Hook Gantry Crane is a heavy-duty material handling system featuring two parallel main girders supported by legs that travel on rails or wheels, with a hook as the primary lifting attachment. This crane is designed to handle the most demanding industrial lifting applications where high capacity, stability, and reliability are essential. The "MG" designation typically indicates a standard general-purpose gantry crane model that conforms to specific design and manufacturing standards, making it a popular choice for factories, workshops, and outdoor yards. The double girder configuration provides superior strength and rigidity compared to single girder designs, enabling the crane to lift heavier loads while maintaining excellent precision and safety.

What lifting capacities are available for this type of crane?

The MG Type Double Girder Hook Gantry Crane is engineered for heavy-duty performance across a broad spectrum of capacities. Standard models are available with lifting capacities ranging from 5 tons up to 50 tons, while custom-engineered versions can be designed to handle capacities of 100 tons or more for specialized applications. The actual capacity required depends on your specific operational needs, including the weight and size of the loads you handle, and the frequency of lifting operations. This crane is particularly well-suited for facilities handling heavy machinery, steel components, large castings, and other substantial loads that exceed the capabilities of single girder systems.

What are the key features of the hook attachment?

The hook is the primary lifting attachment on this crane and is available in several configurations to suit different load types and handling requirements. Standard hooks are typically single hooks made of forged steel for maximum strength and durability, while some models feature swivel hooks that allow the load to rotate freely during lifting, which is particularly useful for aligning heavy components during assembly operations. Many MG type cranes also offer optional hook features such as safety latches to prevent accidental load disengagement, rotating hooks for easier load positioning, and multiple hook designs for handling loads with different lifting points. The hook itself is designed to be easily replaceable, allowing facilities to switch between hook types as their material handling needs change.

MG Typed Double Girder Hook Gantry Crane| Heavy Duty Outdoor

MG typed Double Girder Hook Gantry Crane

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Capacity:

5T 10T 20T 30T(customizable)

Lifting Height:

10-15m(customizable)

Voltage/Hertz:

(customizable)

Working Class:

Span:

18-35m(customizable)

Apply: The machine is suitable for railway freight yards, ports, open warehouses, container transfer stations, etc. with large span and frequent loading and unloading operations

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Introduction

Technical Data

Application

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PRODUCT INTRODUCTION

The MG Typed Double Girder Hook Gantry Crane is a heavy-duty, standardized gantry crane designed for demanding material handling applications in outdoor and semi-outdoor environments.The crane is equipped with an electric wire rope hoist or an open winch-type hoist mechanism, with the trolley traveling on rails along the top of the two girders. MG typed gantry cranes are widely used in heavy industrial settings such as steel yards, shipyards, container terminals, and large-scale manufacturing plants where high capacity, long spans, and frequent duty cycles are required."

TECHNICAL DATA

Parameter	Specification	Parameter	Specification
Rated Lifting Capacity	10 ~ 50 tons (customizable up to 500t)	Span	18 ~ 35 meters (customizable)
Max. Lifting Height	15 meters (primary hoist)	Secondary Lifting Height	10 ~ 15 meters
Working Class	A5	Power Supply	(customizable)
Total Crane Weight	60 ~ 200 tons	Application	Outdoor yard, stockyard, workshop, or container handling
Structure Type	U-type double girder, with outriggers and saddle	Warranty	12 months
Inspection Report	Provided	Video Outgoing Inspection	Available

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APPLICATION

1.This crane is extensively used in steel service centers and metal stockyards, handling heavy steel coils, plates, beams, pipes, and billets, moving them from railcar receiving areas to storage racks or feeding them into cutting and processing lines with high precision and efficiency.

2.It is essential in shipyards and marine construction facilities, where it lifts large hull sections, engines, propellers, and fabricated assemblies from ground-level assembly areas onto slipways or dry docks, often operating under harsh outdoor conditions with high wind loads.

3.The crane is ideal for heavy equipment manufacturing plants, including those producing mining machinery, wind turbines, transformers, and pressure vessels, where oversized and overweight components require a double girder design for adequate hook clearance and lifting stability.

4.In container terminals and intermodal freight yards, the MG typed crane handles loaded containers (20 ft, 40 ft, or heavy-duty flat racks), transferring them between rail cars, trucks, and ground stacking zones, with options for container spreader attachments.

5.Additional applications include precast concrete plants, foundries, large warehouses, and railway maintenance depots, where heavy molds, castings, locomotive components, or large concrete products must be moved safely and reliably over long spans and frequent duty cycles.

FEATURES

Double girder heavy-duty construction – two main box girders provide superior rigidity and load distribution, allowing capacities from 5 tons to 50+ tons and spans up to 35 meters or more.

Trolley-mounted hook hoist – hoist travels on rails along the top of the main girders, providing higher hook lift heights compared to under-hung designs, ideal for stacking tall loads or servicing trucks and rail cars.

Standardized MG design – manufactured according to Chinese national standard JB/T 14406-2011, ensuring reliable quality, readily available spare parts, and compliance with international safety requirements.

A-frame or straight leg options – A-frame legs provide wide wheelbase stability for heavy loads and outdoor winds, while straight box legs offer compact dimensions for tighter operating spaces.

Full electric travel and hoist control – independent motors for trolley travel, bridge travel, and hoist lifting/lowering, with optional variable frequency drives (VFD) for smooth acceleration and precise load positioning.

Weather-resistant and high duty cycle design – corrosion-resistant paint systems, IP54 or higher electrical enclosures, and class A5–A7 duty ratings for continuous, heavy-duty outdoor operation in ports, shipyards, and steel mills.