Other Types of Crawler-Mounted Cranes
Industrial wheel tractors in the 1920s, like those made by McCormick-Deering and Fordson were quickly adapted in order to be able to power a large variety of machines. Like for example, half-swing shovels and cranes were made by several companies around the tractor's engine and power train and the wheels became replaced by crawlers.
Crawler tractors came into widespread use in the 1930s. Soon after, numerous manufacturers began manufacturing attachments for them, like for example a range of lifting equipment devices.
For instance, side-mounted booms were primarily utilized for pipe-laying where it gained its nickname the "pipelayer." These machines are frequently used nowadays for attending to cleaning up railroad derailments. Because of their mobility, size and compact design, as well as outstanding lifting capacity, these kinds of machinery are ideal for this use. Moreover, swing booms that mounted on top of the engine compartment also became available.
Crawler cranes are similar to the crawler tractor in that it travels along crawler tracks. These machines can not move fast thanks to their intense weights. Normally, the crane could be controlled by 2 or more cable operated drums and is powered by one engine. The crawler cranes come equipped with a lattice boom or a telescopic arm that is easy to extend by using hydraulics. The lattice boom should be manually assembled by adding multiple sections.
Tower Cranes
Tower cranes are the ones found in large construction projects. These kinds of cranes are necessary to be erected and broken down on location. They must be transported by truck each time they are relocated. These tower cranes are exceptionally tall. They allow construction crews to move concrete building components or heavy steel to the tops of tall buildings. Tower cranes utilize a hydraulic system to push every new crane part up into position and therefore, are self-erecting.