Gantry cranes are those which are built on a structure that sits atop a workspace or other object. They come in many sizes from those that will lift small items like automobile engines to those that can lift dozens of large containers at once.
Container cranes are types of gantry cranes that are large enough to move several containers at once. They are a mainstay of ports and shipyards. With the increase in global economics, ports are becoming busier than ever before and container cranes are more important than ever before.
A container crane is an enormous crane that sits near a ship or a dock. It is used to unload cargo from ships and load cargo onto ships for delivery around the world. A staff attends to the use and operation of a crane. Because they are so large, they require the efforts of an entire team to function. The team includes someone who operates the gantry, the foremen and stevedores. Everyone has to be in direct communication at all times to avoid accidents or injuries.
Basic Features of the Container Gantry Crane
Each container gantry crane is made up of basic parts. These parts are also the main features of the crane which makes them indispensable in the handling of cargo and containers.
A crane has a giant supporting frame. This frame holds the boom and the spreader which are two other important parts of the crane. As the crane moves it will traverse the jetty and must be mounted using rails or rubber tires.
At the bottom of the support frame is the transverse operator cabin. This is where the operator sits and moves the crane as needed. The gantry operator cabin has clear windows so that the operator can watch the loading and unloading of containers.
The boom of the gantry crane is located on the water side hinge. In this location, it can move up and down as required of the navigator. The spreader is located on the rail and is attached to the cabin where the operator sits by the boom. This location also makes it possible for the crane to move transversely on the boom as it lifts cargo.
The spreader opens and closes to accommodate however many containers must be lifted. Many spreaders will lift four containers at a time.
Uses and Applications
The most common applications for the container crane include the port and shipyard applications. They are the most important part of loading and unloading cargo. Cranes, at their most basic construction, have been in use since the middle ages. Today, container cranes run off the same principles but use computers and motors to operate efficiently.
The crane’s operator runs the crane and the trolley above it runs along the rails by the boom and girder. The spreader locks onto a container and then the hoist lifts that container. The crane moves it from the dock to a truck for loading or from the dock to the ship for loading.
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