In industries such as steel production, mining, ports, power plants, and heavy assembly workshops, handling and moving large and heavy loads is one of the primary operational requirements. One of the most practical and efficient solutions for this purpose is the Gantry Crane, which has gained wide popularity in heavy industries due to its flexibility, load capacity, and adaptability to open environments.
Sadid Karan Saba Company, leveraging technical knowledge, years of experience, and a team of specialized engineers, has made substantial progress in the design, manufacturing, installation, and commissioning of various types of gantry cranes according to industrial needs and international standards.
In this section, we will provide a comprehensive overview of gantry cranes, their types, applications, and key considerations for selecting the right model.
What is a Gantry Crane?
A Gantry Crane is an industrial crane that, instead of being suspended from a roof structure, is installed on the ground and moves loads via a horizontal beam supported by two vertical legs.
These legs usually move along rails embedded in the floor, allowing the crane to travel longitudinally.
At the top of the structure, a trolley and a hoist move along the main beam, providing lateral and vertical load movement. Thus, the crane operates in three independent movements: longitudinal, lateral, and vertical.
The main difference between a gantry crane and an overhead crane is that the former does not require any roof structure or indoor building, making it ideal for open or semi-covered spaces such as factory yards, warehouses, and ports.
Types of Gantry Cranes
Gantry cranes vary by application, load capacity, installation requirements, and operating environment. Below are the most common types:
Double Girder Gantry Crane
This is the most common model, featuring two horizontal girders installed on two vertical legs which move along ground rails.
Single Girder Gantry Crane
This model has only one horizontal girder, offering a lighter and more cost-effective design.
Semi-Gantry Crane
In this configuration, one leg runs on a ground rail, while the other runs along a rail mounted on the building wall.
Portable Gantry Crane
These are smaller, movable cranes designed for light loads.
Rubber-Tyred Gantry Crane (RTG)
Instead of rails, this gantry crane runs on rubber tires, allowing flexible, free movement.
Applications of Gantry Cranes in Various Industries
Thanks to their high flexibility, load capacity, and ability to operate in open or semi-covered spaces, gantry cranes are used across diverse sectors:
Steel and Foundry Industries:
Used for moving billets, coils, molds, and heavy steel components. Their resistance to heat and harsh environments is crucial.
Construction and Civil Projects:
Used to handle concrete structures, beams, columns, and building materials on large sites. Quick assembly and mobility are major advantages.
Ports and Docks:
RTG and double-leg gantry cranes are employed for loading and unloading containers and heavy cargo between ships and land.
Manufacturing and Assembly Workshops:
Semi-gantry and single-leg cranes are effective for moving large machine parts during assembly.
Power Plants and Refineries:
Used for transporting sensitive and bulky equipment in open or semi-covered environments—especially in power generation and oil & gas facilities.
Technical Features of Gantry Cranes
Due to their structural design, gantry cranes provide several technical and operational advantages compared to other load-handling systems:
1. Easy Installation, No Roof Structure Required
Unlike overhead cranes that need roof beams or strengthened columns, gantry cranes are installed directly on the ground—no building structure is required.
This design reduces infrastructure costs and makes them suitable for outdoor applications.
2. High Capacity and Design Flexibility
They can be engineered for anywhere between a few hundred kilograms up to hundreds of tons, enabling use across light, medium, and heavy industries.
3. Built for Harsh, Outdoor Environments
Designed to operate in tough conditions such as ports, steel plants, construction sites, and mines, with steel structures resistant to wind, moisture, and dust.
4. Three Independent Motion Axes
5. Low Maintenance Costs
Simpler models (like single-leg or semi-gantry cranes) require less maintenance and have easier service access due to their open structural design.
6. On-Site Mobility
Portable and RTG models can traverse large project areas, ideal for worksites with variable load-handling points.
7. Automation & Smart Control Options
Modern gantry cranes can integrate remote control systems, PLCs, and industrial automation features—enhancing efficiency and safety.
8. Customized Engineering Design
A key factor in selecting the right gantry crane is custom engineering.
Load type, capacity, workspace dimensions, environmental conditions, and operational methods are all factors in the design process.
At Sadid Karan Saba, technical experts develop project-specific, engineered solutions tailored to the client’s exact requirements—ensuring maximum performance, safety, and longevity.
Key Considerations When Ordering a Gantry Crane from Sadid Karan Saba
1. Correct Crane Type Selection
During the initial consultation, project data such as load capacity, installation environment, and motion requirements are gathered to choose the proper design — Single, Double Girder, Semi-Gantry, or RTG.
2. Use of Certified and Guaranteed Components
Hoists from reputable brands such as GIS, MISIA, and Italkrane are used, with ATEX / IEC certifications and IP ratings (IP55, IP65, IP66) suitable for Zone 1 / Zone 2 environments.
3. Technical Testing and Quality Assurance
Before installation, load and performance tests validate the hoist, brakes, PLC, and motion systems. Final testing is carried out at the site in the presence of technical representatives.
