Gantry cranes are a type of overhead crane with a single or double girder configuration supported by freestanding legs that move on wheels or along a track or rail system. Unlike a bridge crane, a gantry crane does not need to be attached to the building’s support structure. Gantry cranes are particularly useful for outdoor applications or in situations where a bridge crane would be impractical due to structural constraints.
A gantry crane is an overhead crane built atop a gantry, which is a structure used to straddle an object or workspace. Gantry cranes are capable of lifting heavy objects, sometimes over 100 tons, and can be used both indoors and outdoors. They are commonly found in shipyards, rail yards, special construction sites like steel mills, and in factories.
A gantry crane is lifting equipment with single or double girder configuration supported by one leg or two legs. It moves on wheels or along a track or rail system. Different from overhead cranes, a gantry crane does not need to be tied into a building’s support structure.
A single girder gantry crane features one main girder that supports the trolley and hoist. It is simpler and lighter than a double girder crane, making it suitable for lighter load applications. Single girder gantry cranes are cost-effective and easier to install and maintain.
| Model | AQ-MH |
| Load capacity | 3-20t |
| Span | 8-35m |
| Lifting height | 6-18m |
| Lifting speed | 0.33-8m/min |
| Trolley running speed | 20m/min |
| Crane running speed | 20m/min |
| Work duty | A3, A4 |
| Model | AQ-NMH |
| Load capacity | 3.2-20t |
| Span | 8-35m |
| Lifting height | 6-12m |
| Lifting speed | 0.66-5m/min |
| Trolley running speed | 2-20m/min |
| Crane running speed | 3-30m/min |
| Work duty | A5 |
Semi gantry crane only has one leg, and the other side of the crane riding on a runway system. This can save your floor space or workspace. Unlike a full gantry crane, it does not need much space to place two legs. It can be used both indoors and outdoors.
| Model | AQ-BMH |
| Load capacity | 3-20t |
| Span | 8-30m |
| Lifting height | 6-18m |
| Lifting speed | 0.33-8m/min |
| Trolley running speed | 20m/min |
| Crane running speed | 20m/min |
| Work duty | A3, A4 |
A double girder gantry crane has two main girders that support the trolley and hoist. This design allows for greater lifting capacities and spans, making it suitable for heavy-duty applications. Double girder gantry cranes provide better stability and are capable of lifting heavier loads to higher heights compared to single girder cranes.
| Model | AQ-MG |
| Load capacity | 5-500t |
| Span | 18-35m |
| Lifting height | 6-18m |
| Lifting speed | 1.5-11.5m/min |
| Trolley running speed | 10-40.1m/min |
| Crane running speed | 16-50m/min |
| Work duty | A3-A7 |
| Model | AQ-MDU |
| Load capacity | 10-50t |
| Span | 18-35m |
| Lifting height | 6-18m |
| Lifting speed | 5.9-13.3m/min |
| Trolley running speed | 31.3-40.1m/min |
| Crane running speed | 40.1-44m/min |
| Work duty | A5-A6 |
| Model | AQ-BMG |
| Load capacity | 5-32t |
| Span | 12-30m |
| Lifting height | 6-12m |
| Lifting speed | 6-11.5m/min |
| Trolley running speed | 37-40.1m/min |
| Crane running speed | 37.7-40.1m/min |
| Work duty | A3-A6 |
| Model | AQ-RMG |
| Load capacity | 30-50t |
| Span | 18-35m |
| Lifting height | 12.3-12.5m |
| Lifting speed | 9.2-12.5m/min |
| Trolley running speed | 45-56m/min |
| Crane running speed | 42-50m/min |
| Work duty | A6-A8 |
Portable gantry cranes are small, lightweight cranes mounted on wheels. These portable gantry cranes can be moved around a facility as needed, making them ideal for workshops and small factories where flexibility and mobility are crucial.
With small size, lightweight and simple structure, it is easy to install, operate and move. Besides, it has a high-cost performance.
A semi-gantry crane has one leg that runs on a rail system on the ground and another leg that runs on a runway system attached to the building’s support structure. This configuration of semi-gantry crane is often used in facilities with limited floor space but available overhead support.
Our company also have other types of gantry cranes for sale like rubber tyred gantry crane, truss gantry crane, etc.
Truss gantry cranes are usually designed as a full crane structure. And they are commonly used in outdoors. Truss cranes are not often used one, but they are quite ideal for working places where have strong winds. Because they have powerful wind resistance.
Gantry cranes are composed of several key components and can be equipped with various accessories to enhance their functionality. The main components include:
The bridge or girder is the main horizontal beam that supports the trolley and hoist. It spans the distance between the legs and provides the structural integrity needed to lift and move heavy loads. Single girder cranes have one main beam, while double girder cranes have two beams for added strength and stability.
The legs are vertical supports that hold up the bridge. In a full gantry crane, there are two legs that move along tracks or wheels on the ground. In a semi-gantry crane, one leg is supported by the ground track, while the other is attached to the building’s structure.
The trolley is the mechanism that moves horizontally along the bridge and carries the hoist. It allows for precise positioning of the load along the length of the bridge. Trolleys can be manually operated or powered by an electric motor.
The hoist is the lifting mechanism attached to the trolley. It consists of a drum or lift-wheel around which the rope or chain wraps. The hoist is powered by an electric, hydraulic, or pneumatic motor and is responsible for raising and lowering the load.
Wheels or tracks allow the gantry crane to move along the length of the workspace. Full gantry cranes typically run on rails embedded in the ground, while portable gantry cranes are equipped with wheels for mobility. Tracks ensure the crane moves smoothly and accurately along its path. The crane mounted on rails is rail mounted gantry crane. The crane with wheels is rubber tyred gantry crane.
Control systems for gantry cranes can be manual, wired, or wireless. Modern gantry cranes often feature advanced control systems with wireless remote controls, automated positioning, and load management systems. These controls enhance safety, precision, and efficiency in crane operations.
Gantry cranes can be equipped with a variety of accessories to improve their functionality and adapt to specific tasks. Common accessories include:
Because of the high efficiency and good performance, gantry cranes have a highly wide range of applications. On the one hand, we can find them in indoor places, such as the warehouse, workshop, garage, manufacturing, and maintenance factory, etc. On the other hand, it is widely used for outdoor applications like the port, dock, freight yard, shipyard, etc.
Full gantry crane or semi gantry crane are commonly applied for heavy fabrication uses, or in some type of outdoor yard – shipping yard, rail and container yards, and steelyards. Portable gantry cranes are used for small service and it offers more flexibility than a jib crane or workstation crane.
Gantry cranes are used across a wide range of industries due to their versatility and ability to handle heavy loads. Key applications include:
Gantry cranes offer several advantages that make them suitable for various applications:
Safety is paramount when operating gantry cranes. Key safety considerations include:
Gantry cranes are versatile, powerful lifting machines that play a crucial role in various industries, from shipbuilding and rail yards to manufacturing and logistics. Understanding the different types of gantry cranes, their components, and their applications is essential for selecting the right crane for specific operational needs. By leveraging the advantages of gantry cranes and adhering to safety best practices, industries can enhance their productivity, efficiency, and safety in material handling operations. Aicrane provides different kinds of gantry crane to suit your need. Please feel free to contact us and get a free quote.