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MG Double Beam Gantry Crane

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This crane is mainly used in steel stockyards, port terminals, and precast concrete factories.
Capacity:
5 t – 500 t+, Customizable
Lifting Height:
6 m – 30 m
Span:
18 m – 50 m
Voltage/Hertz:
3 Phase 380V 50hz
Working Class:
A5, A6, A7, A8
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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

What is this?

The double beam gantry crane is a gantry crane featuring a double main beam structure. Through the coordination of hoisting and traveling mechanisms, with legs running on ground rails, it achieves precise lifting and handling of heavy materials, large equipment, containers, steel structures, and more. If you are looking for a crane with strong load capacity, long span, and high stability for a port terminal, railway freight yard, shipyard, stockyard, or large manufacturing workshop, this product is designed for you.

Why choose a double beam gantry crane over a single beam gantry crane?

Compared to single beam gantry cranes, the double beam gantry crane offers four core advantages:

First, stronger load capacity – the double main beam structure provides lifting capacity from 5 tons to over 500 tons, meeting heavy material and large-capacity lifting requirements.

Second, longer span – higher structural rigidity of the double girders allows spans from 18 meters to over 50 meters, covering wider stockyards and working areas.

Third, smoother operation – minimal deflection of the double girder structure provides smoother trolley travel and more precise positioning, suitable for precision lifting operations.

Fourth, wider application – compatible with various lifting attachments such as main/auxiliary hooks, magnets, grab buckets, and spreaders to suit diverse operational needs.

Take on heavier tasks with a stronger structure.

What can we do for you?

We understand that every customer has different capacity requirements, different spans, and different working environments. Therefore, we offer flexible customization options: lifting capacity from 5 tons to over 500 tons; span from 18 meters to 50 meters; leg types of A-frame, L-frame, or U-frame; single or double cantilever; control options of cabin, remote radio, or pendant; VVVF speed control optional. Whether your working environment is an outdoor stockyard or an indoor workshop, we can match the most suitable span and lifting height.

Unsure? Don't know?

Not sure whether to choose A-frame or L-frame legs? Don't know what span can cover your stockyard? No problem. Just tell us: your maximum lifting capacity, your stockyard span or width, whether you need cantilevers, and whether it's for outdoor or indoor use. 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 material types and site dimensions, and we will calculate for you.
introduction

APPLICATION SCENARIO

[1] Steel Stockyards – Handling steel coils, plates, pipes, and structural sections.

[2] Port and Container Terminals – Lifting containers, heavy machinery, and bulk cargo.

[3] Precast Concrete Factories – Moving concrete beams, panels, and heavy molds.

[4] Heavy Equipment Assembly Yards – Relocating large components such as transformers, turbines, and mining equipment.

[5] Railway Freight Stations – Loading/unloading heavy goods like rail tracks, wheelsets, and transformers.

ADVANTAGES

[1] High Load Capacity – Double girder design supports loads from 10t up to 500t.

[2] Long Span – Rigid structure easily achieves spans over 40m.

[3] High Duty Cycle – Designed for continuous operation with duty class up to A8.

[4] Smooth and Precise – Dual‑rail trolley and frequency control provide stable travel and accurate positioning.

[5] Durable for Outdoor Use – Corrosion‑resistant coatings and weather‑protected components.

STRUCTURAL DIAGRAM AND PARAMETER TABLE

Parameter Specification
Working Class A5, A6, A7, A8
Capacity 5 t – 500 t+
Span 18 m – 50 m
Lifting Height 6 m – 30 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)
Control Method Cabin control / Remote radio control / Pendant control
Power Supply 380V / 50Hz / 3-phase
Temperature -20°C to +50°C
Protection Grade Motor: IP54 – IP55, Insulation class F or H
Girder Type Double Beam – Two box-section main beams with full-penetration welding