Cranes for Sale - Bridge Cranes or Gantry Cranes or Monorail Cranes

There are three of the most commonly used types of overhead cranes: bridge crane, gantry crane, and monorail crane. Learn about crane design and applications can help you select the type of crane best suited.

Bridge Cranes

• Bridge cranes are physically the largest crane type, and are used to carry the heaviest loads. The double girder configuration is particularly well suited to applications in which there is a wide span between the runways, or the load is exceptionally large or heavy.
• The supporting runways of a bridge crane may be built into the structure of the facility, making it ideal for large, permanent installations where the design of the crane is integral to the design of the building.
• Freestanding bridge cranes, which feature a modular design that allows them to be easily relocated to other parts of your facility, are also widely used.

Gantry Cranes

• A gantry crane is very similar to a bridge crane. The major difference is that the girder, whether single or double, does not rest upon runways built into the structure, but is supported by rigid legs that can travel on the ground.
• The legs may have casters to roll along the floor, or in some cases may move along a track installed in the floor. So, while a bridge crane's position is fixed, a gantry crane can be moved around your facility.
• Gantry cranes may be fixed or adjustable height. The fixed height variety is the most common. They are best suited for applications in which the process is fixed and repetitive. An adjustable height gantry is more flexible since its height can be altered based on the application or configuration of the location in which it will be used.
• Gantry cranes are well suited for portable or outdoor applications. They are often used for loading and offloading in storage yards, shipyards, rail yards, and on construction sites.

Monorail Cranes

• Unlike bridge and gantry cranes, a trolley of the monorail crane carries the hoist along a supporting I-beam. The load can be moved in only two dimensions – up and down, and along the track of the I-beam.
• One of the great advantages of this crane configuration is that the I-beam need not be linear. It can be curved, allowing the hoist to move from station to station along a complex path.
• Monorail crane installations are normally customized for specific applications. They are, for example, often used for transporting items along an assembly line or through a production process.

Each crane sold for industrial use is carefully engineered to fit the intended environment and application. Dongqi Cranes also supply custom service which can help with suggestions for the best solution for you.