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U Type Double Girder Gantry Crane

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U type double girder gantry cranes are mainly applied in industries such as container terminals, port handling, logistics parks, prefabricated component yards, and general industrial stockyards.

Capacity:

5 t – 100 t (customizable up to 300t)

Lifting Height:

6 m – 25 m(customizable based on site clearance)

Span:

18 m – 45 m customizable

Voltage/Hertz:

3 Phase 380V 50hz

Working Class:

A5, A6, A7

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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

A U-Type Double Girder Gantry Crane is a heavy-duty, rail-mounted crane featuring a double-girder bridge supported by "U"-shaped legs. By omitting the lower crossbeam found in conventional A-frame gantry cranes, its unique U-shaped leg configuration maximizes clearance, allowing bulky, long, or wide materials to pass smoothly between the legs without obstruction.

APPLICATION SCENARIO

Container Freight Stations & Inland Waterway Ports: Efficient stacking, loading, and unloading of 20ft, 40ft, and 45ft containers between truck chassis, railcars, and storage yards.
Railway Freight Hubs & Logistics Parks: Cross-track loading and transfer of heavy cargo, steel coils, and intermodal containers.
Shipyards & Wind Power Facilities: Transporting and assembling over-length structural components, ship sections, wind turbine blades, and tower segments.
Precast Concrete & Heavy Manufacturing Plants: Safe handling, flipping, and outdoor storage of long precast concrete beams, bridge girders, and heavy steel plates.

ADVANTAGES

Superior Clearance & Passage CapabilityUnobstructed Side Transfer: The U-frame leg design creates wide inner space, allowing containers or wide bulky items to pass through the legs smoothly without rotating or tilting.High Capacity & Broad Span CoverageHeavy-Duty Performance: Built with robust box-type double girders to support heavy lifting capacities (typically 10t to 50t+) and wide spans (up to 35m–50m+) with exceptional wind resistance.Versatile Spreader IntegrationEasily equipped with specialized lifting attachments, such as rotatable container spreaders, electromagnetic lifters, hydraulic grabs, or dual-hook trolleys.Optimized Logistics EfficiencyTransport vehicles (trucks and trailers) can drive directly into the crane area or pass through the legs, significantly shortening trolley travel distance and cycle times.

STRUCTURAL DIAGRAM AND PARAMETER TABLE

Parameter	Specification
Working Class	A5, A6, A7
Capacity	5 t – 100 t
Span	18 m – 45 m
Lifting Height	6 m – 25 m
Leg Clearance Width	6 m – 15 m
Leg Clearance Height	4 m – 8 m
Lifting Speed	Main hook: 4 – 12 m/min Auxiliary hook: 6 – 15 m/min
Trolley Travelling Speed	35 – 45 m/min
Crane Travelling Speed	20 – 50 m/min (VVVF optional for smooth start/stop)
Power Supply	380V / 50Hz / 3-phase
Leg Type	U-frame (straight legs with wide clearance for vehicle pass-through)
Cantilever	Single cantilever / Double cantilever / No cantilever
Girder Type	Double girder – two box-section main beams with full-penetration welding

NUCOLLEN CERTIFICATE

Nukollen Possesses A Wide Range Of Complete Certification Documents Including Those For Ships, Port Equipment Factories, Etc. If You Need Them, Please Feel Free To Request The Detailed Certification Files From Us.