A gantry crane is essentially a single crane designed to lift an object or workspace high into the air. They are typically used in construction, demolition, and utility work. They come in a variety of sizes, and are powered either hydraulically or pneumatically. They can range from massive full-scale gantry cranes capable of lifting the most heavy loads in the industry, to incredibly compact shop cranes used for simple tasks like lifting car engines from vehicles. Whatever the task, there is a suitable gantry crane for it.
Many modern gantry cranes are powered by electric motors rather than hydraulics, due to the greater safety and efficiency of electric motors, as compared to hydraulic ones. These modern cranes use a gear drive system. This gear drive system allows the crane to either lower the load by itself, or to engage a gear that allows it to slow down and lower the load in response to changes in the ground beneath it. These systems make cranes much more versatile, allowing them to be used in a variety of labor intensive tasks. They are also much more reliable and efficient than their predecessors, as they do not need to run at very high speeds to get the job done.
The most common use for gantry cranes today is lifting bridges. In this field, they are usually referred to as bridge cranes. A typical bridge crane has a number of gear boxes on either side of the main mast connected by gear drives, and has a lifting cylinder functioning together with a winch, and a drum. These cranes have been designed to lift single or multiple weight bridges. They also have the capacity to lift medium weight bridges, and are generally preferred over other types of crane due to their ability to match the span of a standard bridge with a single unit.
In addition to lifting bridges, gantry cranes are also used to lift support columns. These are columns that are found in various buildings or areas where there is limited space available for building materials. In most cases, these support columns are supported by metal or steel trusses. These gantry cranes has the ability to rise to the required level of support, and then move to cover the area where the column is to be positioned once the job is complete. In the past, support columns were manually lifted, but with the development of modern cranes that are capable of both lifting and lowering, the requirement for manual lifting is becoming obsolete.
There are three major types of gantry cranes currently being used by construction teams. There are the flatbed cranes that have a large bucket that is located on a platform and can be operated in an upright position; the next is the cable drive that has a wire mesh basket and rollers that are located at the end of the boom and that also function in an upright position; and the last is the tower crane which is similar to a regular bridge crane in that it has a tower that extends from the ground. In addition, some modern gantries are equipped with a detachable boom that allows them to be quickly moved around to a different job site. Some gantries have a detachable mast as well. The major differences between these three types of cranes is the amount of weight that they can lift and the amount of horsepower that they are able to operate. See here more info about this crane.
There are many different types of gantries used to lift and support different types of materials. One way to think of all of these different types of cranes is to think of them as separate units that share some basic similarities. However, the main difference between them is that some cranes are able to move from one location to another while others must remain in their fixed positions. Each of these types of cranes is important for a variety of different jobs and industries. Knowing more about these different types of cranes will help you determine the most suitable machine for your job. Check out this related post to get more enlightened on the topic: https://en.wikipedia.org/wiki/Gantry_crane.