20 Ton Double Girder Gantry Crane with Long Travel Distance

20 Ton Double Girder Gantry Crane with Long Travel Distance

Specification:


  • Load Capacity: 5 - 600 ton
  • Span: 12 - 35m
  • Lifting Height: 6 - 18m or according to customer request
  • Working Duty: A5 - A7

Double Girder Gantry Crane Overview

A double girder gantry crane is a heavy-duty lifting solution designed for handling large loads in both indoor and outdoor working environments. With two main girders mounted on supporting legs, this crane provides excellent strength, stability, and lifting performance. Its sturdy design allows it to operate efficiently in demanding applications such as manufacturing plants, freight yards, construction sites, and steel handling facilities.

 

The crane is typically built with a box girder structure, which offers high rigidity, reliable performance, and long service life. This structural design enables the crane to lift heavy materials safely while maintaining smooth and stable movement. Double girder gantry cranes are commonly available in a wide range of lifting capacities and spans, making them suitable for handling various materials such as steel products, machinery components, precast concrete, and bulk cargo.

 

Depending on operational requirements, the crane can be equipped with different lifting devices, including hooks, grabs, electromagnetic spreaders, or hoists. This flexibility allows it to adapt to multiple material handling tasks across different industries. For outdoor applications, rail-mounted double girder gantry cranes are especially popular due to their wide coverage area and efficient movement along fixed tracks.

 

For customers seeking a lighter structural option, truss-type double girder gantry cranes are also available. These cranes feature reduced wind resistance and lower overall weight, making them suitable for outdoor environments. Whether using a box girder or truss design, double girder gantry cranes provide a reliable, customizable, and efficient lifting solution for heavy-duty industrial operations.

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Advantages of Double Girder Gantry Crane

1. High Lifting Capacity

Double girder gantry cranes are specifically engineered for heavy-duty lifting tasks. Their robust structure allows them to handle extremely large and heavy loads with high efficiency and stability. This makes them an ideal solution for industries that require frequent movement of oversized materials, such as steel fabrication, shipbuilding, and heavy machinery production.

2. Superior Stability and Durability

With a dual-girder design, the crane offers significantly improved rigidity compared to single girder systems. This enhanced structural strength ensures stable operation even under continuous and demanding working conditions. Built with high-quality steel and advanced manufacturing standards, it provides a long service life and reliable performance in harsh industrial environments.

3. Wide Span and Large Coverage Area

Double girder gantry cranes are suitable for covering large working areas, making them highly effective in outdoor yards, shipyards, rail terminals, and large manufacturing workshops. Their wide span capability allows efficient material handling across expansive sites, reducing the need for multiple lifting systems.

4. Highly Customizable Design

These cranes can be tailored to meet specific operational requirements. Customers can choose from different lifting capacities, spans, lifting heights, working speeds, and control systems. Optional configurations such as cabin control or remote operation further enhance usability and flexibility across various applications.

5. Advanced Safety Features

Safety is a key priority in the design of double girder gantry cranes. They are equipped with multiple protection systems, including overload protection, limit switches, emergency stop functions, and optional anti-sway technology. These features ensure safe operation, reduce risks, and protect both operators and materials.

6. Easy Maintenance and Serviceability

The crane structure is designed for convenient inspection and maintenance. Key components are easily accessible, which simplifies routine servicing and reduces downtime. This ensures long-term operational efficiency and lowers maintenance costs over the equipment’s lifecycle

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Customization Options

1. Custom Span and Lifting Height

Double girder gantry cranes can be customized with different spans and lifting heights to suit specific working conditions. Whether the crane is required for a compact workshop or a large outdoor yard, the span can be designed to match the width of the operational area. The lifting height can also be adjusted according to the height of the building, storage requirements, or the size of the materials being handled. This flexibility ensures that the crane operates efficiently while maximizing the available workspace.

2. Adjustable Lifting and Travel Speeds

To improve workflow efficiency, the lifting speed, trolley travel speed, and crane traveling speed can all be customized according to operational demands. For applications requiring precise load positioning, slower speeds can be selected to improve control and safety. For high-volume material handling tasks, faster speeds can be configured to increase productivity. Variable frequency drive (VFD) options are also available to provide smoother acceleration and deceleration, reducing load swing and mechanical wear.

3. Flexible Control Systems

Double girder gantry cranes can be equipped with different control methods to meet user preferences and site requirements. Common options include pendant controls, wireless remote controls, and operator cabins. Wireless remote controls provide greater flexibility and allow operators to manage the crane from a safe distance, while cabin controls are ideal for large-capacity cranes that require enhanced visibility and precision. These options improve both convenience and operational safety.

4. Customized Power Supply Solutions

The crane’s power supply system can be tailored to match the electrical standards of different countries and facilities. Voltage, frequency, and power connection methods can all be customized to ensure compatibility with the user’s existing infrastructure. This allows for easier installation, stable operation, and reliable performance in various industrial environments.