- Nov 20, 2024
- News
Bridge Crane vs Gantry Crane
Gantry cranes and overhead bridge cranes are both commonly used cranes, but they are different in terms of structure, installation, and application.
Gantry cranes and overhead bridge cranes are two commonly used cranes, and when it comes to how to differentiate between them, many people will say that they don't look the same. This is true, but there is more to the difference between them than that. This article will provide a detailed comparison of these two crane types, analyzing their features, uses, and benefits.
What Is an Overhead Bridge Crane?
An overhead bridge crane is a fixed lifting system comprising a horizontal bridge spanning between parallel runway beams. The bridge moves along elevated rails, enabling precise load handling within structured facilities.
1. Key Features of an Overhead Bridge Crane
- Structure: An overhead bridge crane runs on fixed runway rails mounted high on building columns or rafters. A large bridge girder spans between these rails. End trucks on each side carry the bridge along the runway. A trolley hoist then travels across the bridge beam. You can choose single-girder or double-girder designs depending on span, lift height, and load capacity. Proper rail alignment and sturdy runway supports ensure smooth, safe travel.
- Applications: These cranes appear in warehouses, production lines, and assembly plants. They handle pallet loads, machined parts, and heavy assemblies. In heavy-manufacturing, they lift steel coils, engine blocks, and pressure vessels. In automotive or aerospace shops, they position fixtures and subassemblies. You’ll also see them in maintenance bays, shipyards, and foundries. Their versatility makes them central to material handling and workflow efficiency.
- Power Source: Most overhead bridge cranes use electric wire-rope or chain hoists. AC motors with variable frequency drives (VFDs) give precise speed control on hoist, trolley, and bridge motions. A cable-festoon or conductor-bar system supplies power cleanly along the crane span. Optional UPS backups keep the crane operable during brief outages. Electric operation delivers energy efficiency, low noise, and precise positioning for demanding industrial tasks.
2. Types of Overhead Cranes
Due to the different working conditions in various industries, overhead cranes have different designs and configurations in order to adapt to the needs of different applications. You can check out this article for more information on Yuantai overhead cranes.
3. Advantages
- Ideal for indoor facilities with large spans.
- Precise control of load placement.
- Minimal floor space interference.
What Is a Gantry Crane?
A gantry crane is a portable or stationary lifting device supported by freestanding legs that run on wheels or tracks. Unlike bridge cranes, gantry cranes do not require a building's structural support.
1. Key Features of a Gantry Crane:
- Structure: A gantry crane features a strong horizontal beam, called a girder. Two vertical legs support this beam at each end. The legs may be fixed in place or adjustable in height. Wheels or rails at the base let the crane travel along the floor. You can choose single-girder or double-girder designs depending on your load and span requirements. Portable models break down into sections for easy transport and setup.
- Applications: Gantry cranes shine outdoors and where no overhead runway exists. You’ll find them in shipyards, construction zones, steel yards, and container depots. They lift precast concrete, steel beams, and heavy equipment in open areas. Indoor portable gantry cranes serve maintenance bays, machine shops, and labs.
2. Types of Gantry Crane
Yuantai offers a wide range of gantry cranes so you can choose the right one for your needs. Our team can also provide you with a selection program. If you want to know more about the types of gantry cranes, you can also check this article.
3. Advantages:
- Can operate without relying on building infrastructure.
- Portable versions offer flexibility for multiple workstations.
- Ideal for outdoor and temporary operations.
Comparison: Overhead Bridge Crane vs. Gantry Crane
Below is a comparison table to highlight the key differences between these two crane types:
| Aspect | Overhead Bridge Crane | Gantry Crane |
|---|---|---|
| Structure | Supported by elevated tracks and runways | Freestanding legs with wheels or tracks |
| Location | Primarily used indoors | Suitable for indoor and outdoor use |
| Mobility | Fixed structure | Portable and adjustable options available |
| Installation | Requires fixed infrastructure | Can be installed on any flat surface |
| Cost | Higher installation costs due to fixed structures | More cost-effective for short-term or temporary use |
| Applications | Ideal for warehouses, factories, and assembly lines | Best for outdoor yards, construction sites, and container ports |
| Lifting Capacity | Higher capacities with double-girder models | Customizable capacities based on design |
| Flexibility | Limited to the facility layout | Highly versatile with adjustable and mobile options |
Which Crane Should You Choose?
Overhead Bridge Crane:
Consider an overhead bridge crane if:
- Facility Infrastructure: Your facility has fixed runways or tracks.
- High Precision: You require precise load handling and placement.
- Heavy Loads: You need to lift exceptionally heavy loads in a controlled environment.
- Indoor Use: The crane will operate in an indoor setting such as a factory or warehouse.
Gantry Crane:
Choose a gantry crane if:
- Outdoor Applications: The crane will operate in open yards or ports.
- Portability: Mobility and adjustability are key requirements.
- Cost Efficiency: You need a budget-friendly option without significant installation costs.
Applications of Overhead Bridge Cranes and Gantry Cranes
Overhead Bridge Crane Applications:
- Automotive Industry: Precise positioning of heavy machinery.
- Steel Production: Handling molten metal with ladle cranes.
- Logistics Centers: Managing inventory and large goods.
Gantry Crane Applications:
- Construction Sites: Moving heavy construction materials.
- Shipyards: Handling large vessel components.
- Container Ports: Unloading shipping containers with specialized gantry cranes.
Conclusion
Whether it's an overhead crane or a gantry crane, both are important pieces of equipment in the material lifting and handling process, and you should choose one based on your specific application. If you don't know how to choose the right crane for you, you can refer to our article. This post details how to choose the right crane.
