Different Types of Crawler-Mounted Cranes
In order to be able to power a huge range of machines, industrial wheel tractors were adapted in the 1920s, by McCormick-Deering and Fordson. Like for instance, half-swing cranes and shovels were made by several companies around the tractor's power train and engine and the wheels became replaced by crawlers.
Throughout the 1930s, crawler tractors came into widespread use. Immediately after, numerous manufacturers started making attachments for them, including a range of lifting equipment devices.
For example, side-mounted booms were primarily used for pipe-laying where it gained its nickname the "pipelayer." These machines are usually utilized today for attending to cleaning up railroad derailments. Due to their compact design, mobility and size, as well as outstanding lifting capacity, these equipments are great for this use. Furthermore, swing booms which mounted on top of the engine compartment became available too.
Crawler cranes are similar to the crawler tractor in that it travels along crawler tracks. These machinery could not move fast thanks to their intense weights. Usually, the crane is powered by one engine and may be controlled by 2 or more cable operated drums. The crawler cranes are available with a lattice boom or a telescopic arm which can be extended easily utilizing hydraulics. The lattice boom has to be manually assembled by adding multiple sections.
Usually found in big construction projects, tower cranes are required to be erected and broken down on location. They should be transported by truck each and every time they are relocated. These tower cranes are very tall. They enable construction crews to move heavy steel or concrete building components to the tops of tall buildings. Tower cranes utilize a hydraulic system to push each and every new crane section up into place and therefore, are self-erecting.