If you are in charge of building a large structure such as a building or a bridge, you will need to incorporate the use of a crane. This is a machine that is capable of lifting enormous amounts of weight, allowing the operator to position steel beams, girders, and even equipment that is excessively heavy into positions that would not be achievable through typical forms of manual manipulation. There are a couple different types of overhead cranes which include top running cranes, and those that are called under hung bridge crane, which can serve a very specific purpose. Let’s look at what a crane consists of, the difference between the two types of cranes, and the primary use for an under hung crane when you are doing certain projects.
What Is A Crane?
A crane is a mechanical device that is capable positioning and lifting objects of enormous weight and size. It is a machine that uses wire ropes or chains, in conjunction with sheaves, allowing the device to lift and move various types of objects. You will often see cranes at construction sites where skyscrapers are being built, usually with an extremely long latticed boom. These are usually fitted with a gib, and under the control of the operator, they are able to quickly construct both small and large structures at an accelerated pace.
Top Running Cranes
These are the cranes that you will typically see when buildings and bridges are constructed. They are designed to work with a runway system. This is usually a combination of engineered columns that are made specifically for the job, or they can also use building columns. They offer a double girder design which makes them much more stable, and they are considered to be the benchmark of the industrial age. Whether you are using a single girder or double girder top running overhead crane, they are able to help the construction crew complete large jobs.
Under-Hung Cranes
These are different froms of the top running cranes, ones that can be suspended overhead without needing support columns at all. They are much lighter and easier to set up than top running systems, and the beams of the building actually create the runway that is used. The main advantages of using an under hung crane is that they can effectively decrease the weight of operating equipment. They can also work simultaneously with other cranes, side-by-side, without interfering in any operations that are concurrently happening. They also have interlocking systems and mechanisms, allowing the transfer of carriers from one to the other. You will often see multiple cranes working together to move components that must be used for each part of the construction process, similar to what you will see with monorail and bridge crane systems.
You can actually find the underhung bridge cranes for sale in many locations, sometimes for very affordable prices. Large companies will often purchase new ones as they begin to grow as a business, opting for larger and more complex systems. If you are a smaller construction company , you can easily save tens of thousands of dollars on the purchase of used models, ones that you can find on the web http://ellsenoverheadcrane.com/ These can be delivered to your location, or you can set up delivery to the next job that you are doing, so that you can improve your business in terms of productivity and speed.