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An Overview of Crane Hoists and How They Work

This article will provide a detailed overview of the crane hoist, how it is designed for the lifting of heavy objects, and will cover a few examples.

Crane hoists are machines that are able to lift and carry heavy objects and move them to another location. They typically achieve this by using a drum or lift wheel that has either a rope or chain wrapped around it. There are many different types available that may be operated either manually, electronically, or pneumatically. There are basically two unique things that distinguish a hoisting crane from the many other types of lifting machines out there: the lifting medium and the type of power used. They use either wire, rope, or chains to lift and their power source is either an electric engine or an air motor.

There are many different types of crane hoists, one of which is used for construction of large buildings. It goes by several names, such as man-lift and buckhoist, but they are all the same machine. They usually consist of either one or two cages which travel up and down along a tower of stacked sections. Each section of mast is roughly 25 feet high, and it is important that they be added at these intervals in order to provide stability. Using a system of rack and pinion motorization, the cages are able to travel along the mast sections at various speeds.

Crane hoists are also used in underground mines. They can be operated by using either man, water, or animal power and are used to raise and lower conveyances into the shaft. Of course, in modern day they are most often powered by electricity. Three different types of crane may be used for this type of operation: drum hoists, friction hoists, and multi-rope cranes.

Most crane hoists that are in use today use either chain or rope in their design. Those that use chains typically have a lever that actuates the hoist. There is a commonly used handheld model known as the ratchet lever hoist that is operated manually. One of the advantages of using this type is that they can be used in any orientation, whether pulling, lifting, or binding. When choosing between either rope and chain, remember that rope is more light weight but is limited by the drum diameter. Chains on the other hand are much larger and heavier.

There are many other different types of crane hoists out there that may be discussed. For example, overhead models use rails that are located high above the ground. They are usually supported by a building or some other type of structure. The main advantage that they provide is that they are safely out of the way and do not cause an obstruction in the workplace. When speed and portability is an important issueFree Reprint Articles, the truck mounted crane is the perfect choice. It can travel along the public roads so it can quickly move from one location to the next.

Article Tags: Crane Hoists, Different Types

Source: Free Articles from ArticlesFactory.com

ABOUT THE AUTHOR


After a succesful life in trading, importing and exports, Rupert now spends his time writing freelance articles for many well-known publications, as well as various educational institutions.  For more of Rupert's articles regarding crane hoists, please visit http://www.hydraulic-cranes.net/



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