Double girder gantry cranes are robust crane systems with two parallel girders that provide superior stability and lifting capacity up to 250 tons. These gantry cranes are primarily deployed in heavy industries, logistics centers, and production facilities where large loads need to be safely moved. The double girder construction offers unique advantages for complex lifting operations in outdoor environments.
What exactly are double girder gantry cranes and how do they work?
Double girder gantry cranes are crane systems with two parallel main girders that are mounted horizontally between vertical support legs. This construction provides a stable base on which a hoist trolley moves to lift and relocate loads. The double girder construction distributes weight evenly across both girders, enabling higher lifting capacities than single girder gantry cranes.
The operating principle is based on a combination of vertical movement (hoisting), horizontal movement along the girders (trolley travel), and travel of the entire crane over rails. The hoist trolley moves between the two girders and can therefore operate closer to the support legs, which increases the maximum lifting height. This configuration makes double girder gantry cranes ideal for applications where precision and stability are essential.
Technical characteristics that distinguish double girder gantry cranes from other crane types include increased torsional resistance, better weight distribution, and the ability to achieve greater spans. The construction eliminates girder deflection under heavy loads and ensures consistent performance even during intensive use.
In which industries are double girder gantry cranes most commonly used?
Double girder gantry cranes find primary application in heavy industries where large, irregularly shaped loads must be moved. Shipbuilding, steel fabrication, concrete production, and logistics centers are the main sectors that depend on these robust crane systems for their daily operations.
In shipbuilding, double girder gantry cranes are used for handling ship components, engines, and complete ship sections. Steel mills use these cranes for moving steel plates, beams, and prefabricated structures. Concrete producers rely on double girder gantry cranes for handling heavy concrete elements such as precast panels and foundation elements.
Logistics centers and container terminals deploy double girder gantry cranes for stacking and sorting containers and other heavy cargo. These cranes are also indispensable in the energy industry, at wind turbine manufacturers, and in recycling companies for handling large components and materials.
What advantages do double girder gantry cranes offer compared to other crane systems?
The most important advantage of double girder gantry cranes is their superior stability when handling heavy loads. The double girder construction eliminates torsion and deflection, allowing loads to be positioned more safely and precisely than with single girder gantry cranes or mobile cranes.
The lifting capacity of double girder gantry cranes significantly exceeds that of most other crane systems. While single girder gantry cranes are usually limited to 20-30 tons, double girder variants can easily handle loads up to 250 tons. This increased capacity opens possibilities for applications that would otherwise be impossible.
Flexibility in movement is another important advantage. The hoist trolley can move freely between both girders and has access to the complete working area under the crane. This results in more efficient work processes and better utilization of available space. Additionally, double girder gantry cranes are more cost-effective for intensive use because they require less maintenance than more complex crane systems.
What are the key considerations when choosing a double girder gantry crane?
The required lifting capacity largely determines the specifications of a double girder gantry crane. It is essential to consider not only the weight of the heaviest load but also the maximum loading during dynamic movements and possible future needs.
Span and lifting height are critical dimensions that require coordination with workspace and operational needs. A larger span increases flexibility but also raises costs and structural requirements. The lifting height must be sufficient for the tallest objects being moved, including margin for safe maneuvering.
Environmental conditions such as wind, temperature fluctuations, and corrosive elements influence material selection and protection measures. Safety regulations vary by industry and location, impacting security systems and certification requirements. Maintenance needs must be aligned with available expertise and desired operational availability.
How does BKRS ensure the right double girder gantry crane solution?
We approach each double girder gantry crane project as a unique technical challenge that requires custom solutions. Our design process begins with thorough analysis of your specific lifting needs, workspace, and operational requirements to determine the optimal crane configuration.
Our technical expertise includes:
- Structural calculations for maximum safety and performance
- Custom controls and automation for efficient operation
- Integration with existing infrastructure and work processes
- Compliance with all relevant safety and quality standards
From design to delivery, we handle the complete process from our workshop in Veghel. Our certified installers ensure professional installation, while our inspection services guarantee that your double girder gantry crane always meets the highest safety requirements. As a certified inspection company, we also offer annual inspections and preventive maintenance.
Do you have a complex lifting challenge that requires a double girder gantry crane? Contact us for a no-obligation consultation about your specific needs and discover how we can realize the perfect crane solution for you. Also view our complete range of gantry cranes for all possible applications.
Frequently Asked Questions
What are the maintenance costs of a double girder gantry crane?
Maintenance costs vary depending on usage and environmental conditions, but average between €5,000-15,000 per year. Regular preventive maintenance significantly extends service life and prevents expensive repairs.
How long does installation of a double girder gantry crane take?
Installation time depends on crane size and complexity, but usually takes 2-6 weeks. This includes foundation work, assembly, testing, and certification by our certified installers.
What safety certificates are required for double girder gantry cranes?
In the Netherlands, CE marking, NEN-EN 15011 certification, and annual inspections by recognized institutions are mandatory. BKRS handles all required certifications and inspections.
Can double girder gantry cranes be adapted to existing infrastructure?
Yes, we design custom solutions that perfectly connect to your existing rail systems and workspace. Our engineers analyze your situation for optimal integration without costly modifications.