What is a Double Girder U Type Gantry Crane and what makes it unique?

A Double Girder U Type Gantry Crane is a heavy-duty overhead lifting system distinguished by its unique "U" shaped structural design, where the main bridge girders are positioned to create a recessed or "U" shaped profile that allows the crane to straddle and operate around specific obstacles or work areas. As the name implies, this crane features two parallel main girders instead of one, which provides exceptional strength, stability, and lifting capacity, making it suitable for the most demanding industrial applications.

What are the typical lifting capacities and specifications?

The Double Girder U Type Gantry Crane is engineered for heavy-duty performance, with lifting capacities commonly ranging from 10 tons up to 100 tons or even more, depending on the specific application requirements. The double girder design allows for significantly higher load capacities than single girder models, making this crane the preferred choice for handling extremely heavy and oversized loads in industries such as steel production, shipbuilding, heavy machinery manufacturing, and large-scale construction projects. The span of the crane can be customized to fit the facility layout, typically ranging from 10 meters to 40 meters, while lifting heights can also be tailored to meet vertical clearance requirements, often reaching 10 to 30 meters or higher.

What are the main advantages of the U Type design?

The "U" shaped configuration offers several distinct operational advantages over conventional gantry crane designs. First and foremost, it allows the crane to work in tight spaces and around obstacles, as the recessed shape of the bridge enables the lifting hook to reach areas that would be inaccessible to a standard rectangular gantry frame. This design also improves the crane's ability to handle long or irregularly shaped loads, such as steel beams, pipes, or large machinery components, by providing better clearance and a more stable lifting platform. Additionally, the U type structure often results in a more compact overall footprint, which maximizes usable floor space in the facility and allows for better integration with existing equipment layouts.

Double Girder U Type Gantry Crane

Double Girder U Type Gantey Crane

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For customized products, please fill out information and submit the form.

Capacity:

50T (customizable)

Lifting Height:

10-12M (customizable)

Voltage/Hertz:

(customizable)

Working Class:

Span:

18~35M (customizable)

Apply: It is also essential in steel service centers, ports, and heavy manufacturing facilities, enabling continuous material handling across conveyors, shears, presses, or dock levelers that would otherwise block standard gantry cranes.

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Technical Data

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PRODUCT INTRODUCTION

The Double Girder U Type Gantry Crane is a specialized heavy-duty gantry crane featuring a distinctive U-shaped leg design. Unlike traditional A-frame or straight leg gantry cranes, the U type leg has a deep cutout or recess that allows the crane to straddle and pass over low-profile obstacles such as existing conveyor systems, processing equipment, storage racks, or railway tracks without interfering with their operation. The U type gantry crane is widely used in precast concrete plants, railway maintenance depots, ports, steel service centers, and heavy manufacturing facilities where standard gantry cranes cannot operate due to floor-level obstructions."

TECHNICAL DATA

Parameter	Specification	Parameter	Specification
Core Components	Main beam, End beam, Ground beam, Saddle	Video outgoing-inspection	Provided
Rated Loading Capacity	50T	Max. Lifting Height	12M
Weight (KG)	20000	Application	Outdoor Yard
Lifting Weight	10~50t	Primary Lift Height	11.5~12m
Working Class	A5	Total Weight	63.2~195t
Machinery Test Report	Provided	Warranty	1 Year
Rated Lifting Moment	800N	Span	18~35M
Place of Origin	Henan, China	Type	U Type Gantry Crane
Secondary Lift Height	11~13m	Power Source	(customizable)

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APPLICATION

1.This crane is extensively used in precast concrete plants and concrete product yards, where the U-shaped leg allows the crane to pass over low concrete barriers, curing racks, casting beds, or conveyor systems transporting fresh concrete, enabling seamless movement between production and storage zones without lifting or relocating floor equipment.

2.It is essential in railway maintenance depots and train repair facilities, where the U leg straddles railway tracks at ground level, allowing the crane to travel along the tracks while lifting locomotive engines, bogies, wheelsets, or rail cars, without the leg colliding with the rails or track-side infrastructure.

3.The crane is widely applied in port terminals and intermodal freight yards, handling containers, heavy machinery, or bulk cargo while passing over low dock levelers, conveyor feeders, or mooring bollards, maximizing the usable workspace beneath the crane bridge.

4.In steel service centers and heavy manufacturing plants, this crane navigates over floor-mounted equipment such as shears, saws, presses, or roller conveyors, allowing raw material storage and finished goods handling in the same bay without reconfiguring the production floor.

5.Additional applications include waste-to-energy plants, paper mills, and foundries, where the crane must pass over fixed hoppers, augers, or processing equipment while handling scrap, waste bales, or heavy castings, improving workflow continuity and reducing material transfer points.

FEATURES

U-shaped leg design – features a deep cutout or recess in one or both legs, allowing the crane to straddle and travel over floor-level obstacles such as conveyors, tracks, racks, or equipment without interference.

Double girder heavy-duty construction – two parallel box girders provide superior rigidity and load stability for capacities from 5 to 50 tons, with spans up to 35 meters and high hook lift heights.

Trolley-mounted hook hoist – electric wire rope hoist or open winch mechanism travels on rails atop the main girders, offering precise load control and excellent hook approach dimensions.

Full electric travel with anti-swing control – independent motorized drives for hoist, trolley, and bridge travel, with optional variable frequency drives (VFD) and anti-swing systems for smooth acceleration and accurate positioning.

High duty cycle rating – designed for A5 to A7 class operation (ISO/FEM duty classifications), suitable for continuous, heavy-duty use in demanding industrial environments.

Customizable leg height and cutout dimensions – U leg opening can be tailored to customer-specific obstacle heights and widths, with weather-resistant coatings and sealed electrical components for outdoor or harsh environments.