U Type Double Girder Gantry Crane

What is this?

The U type double girder gantry crane is a heavy-duty gantry crane featuring a U-shaped leg design with a double main beam structure. The U-shaped legs provide a wider clearance between the legs, allowing trucks, rail cars, or other transport vehicles to pass through the crane legs for direct loading and unloading. Through the coordination of an electric wire rope trolley with main and auxiliary hooks, combined with crane traveling mechanisms, it achieves precise lifting and handling of heavy materials, containers, prefabricated components, and large equipment. If you need a gantry crane that allows vehicles to pass through for direct pick-up and drop-off, maximizing your material flow efficiency, this product is designed for you.

Why choose a U type double girder gantry crane over an A type or L type gantry crane?

Compared to A type or L type gantry cranes, the U type double girder solution offers four core advantages:

First, vehicle pass-through capability – the U-shaped leg design creates a wide opening for trucks, trailers, rail cars, or forklifts to enter directly under the crane for loading and unloading, eliminating the need for secondary material handling.

Second, faster material flow – direct transfer between crane and transport vehicles reduces handling steps, cutting cycle times by 30%-50% and improving overall yard productivity.

Third, flexible working area – the open leg design allows the crane to straddle storage racks, workstations, or multiple rail tracks, maximizing the utilization of available space.

Fourth, unobstructed operator view – the U-leg configuration provides better visibility for the operator when positioning loads onto vehicles or storage areas.

Maximize your material flow efficiency with vehicle pass-through capability.

What can we do for you?

We understand that every customer has different facility layouts, different transport equipment, and different handling requirements. Therefore, we offer flexible customization options: lifting capacity from 5 tons to 100 tons (up to 300t available); span from 18 meters to 45 meters; leg clearance width customizable for specific truck or rail car dimensions; main/auxiliary hook ratios such as 20/5t, 50/10t, 100/20t; single or double cantilever; control options of cabin, remote radio, or pendant; VVVF speed control for smooth start/stop. Whether your facility uses trucks, rail cars, or both, we can match the leg clearance to your specific transport equipment.

Unsure? Don't know?

Not sure what leg clearance width you need for your trucks or rail cars? Don't know whether a U type or A type leg suits your yard layout? No problem. Just tell us: your maximum lifting capacity, the width and height of vehicles that need to pass through, your yard layout, and whether you need cantilevers. Our engineers will provide you with an accurate quote and CAD drawings within 24 hours. Click the button below or contact us via WhatsApp/email to get your customized solution.

💡 Tip: We offer free selection consulting. Even if you are unsure about specific parameters, feel free to describe your yard layout and material flow needs, and we will calculate for you.

1. Container Terminals and Ports

The U type gantry crane (RTG) straddles multiple rows of containers and truck lanes. Trucks drive under the crane legs for direct container pick-up and drop-off. The U-leg design allows the crane to move freely between container rows while trucks access the working area underneath.

2. Railway Freight Yards

The crane straddles multiple rail tracks, allowing rail cars to position directly under the crane for loading and unloading. The wide leg clearance accommodates standard rail car widths and heights. One crane serves multiple tracks, reducing equipment requirements.

3. Precast Concrete Yards

Trucks drive under the crane legs to receive concrete beams, panels, pipes, and heavy molds directly from the crane. The U-leg design eliminates the need for forklifts or secondary transport within the yard. Precise control allows careful placement onto flatbed trailers.

4. Steel Service Centers

Steel coils, plates, and structural sections are lifted directly from storage stacks onto trucks positioned between the crane legs. The U-leg design streamlines outbound shipping. Heavy-duty construction handles dense steel products.

5. Logistics Parks and Distribution Centers

The crane unloads incoming trucks and loads outgoing trucks with palletized goods or heavy equipment. Direct transfer between crane and truck beds reduces material handling steps. Flexible operation adapts to different truck sizes.

6. General Industrial Stockyards

Handling heavy equipment, construction materials, pipes, and industrial components. Trucks or rail cars pass through the leg opening for direct loading/unloading. The U-leg design maximizes yard utilization by allowing storage under the crane span.

1. Port & Container Terminals – Straddling container rows and truck lanes for direct container transfer between stacks and trucks.

2. Railway Freight – Straddling multiple rail tracks for direct loading/unloading of rail cars with heavy cargo.

3. Precast Concrete Industry – Trucks driving under the crane for direct loading of beams, panels, pipes, and molds.

4. Steel Industry – Direct transfer of steel coils, plates, and structural sections from storage to outbound trucks.

5. Logistics & Distribution – Direct crane-to-truck loading and unloading in logistics parks and distribution centers.

6. General Industry – Vehicle pass-through for efficient material flow in stockyards and industrial yards.