Comedil Construction Cranes Phoenix

Crawler Crane

The mobile crawler crane is particular crane designed with either a telescopic boom or a lattice boom. These move upon the crawlers tracks. As this crane is self-propelled, it can move around particular work locations without the need for much set up. Because of their huge weight and size, crawler cranes are are hard to transport from one site to another and are fairly pricey. The crawler's tracks provide stability to the equipment and enable the crane to work without the use of outriggers, however, there are some units that do utilize outriggers. Furthermore, the tracks provide the machine's movement.



Early Mobile Cranes

Initially, the first mobile cranes were mounted to train cars and move along specifically made short rail lines. Once the 20th century arrived, the crawler tractor changed and this brought the introduction of crawler tracks to the construction industry and the agricultural business. Not long after, the crawler tracks were adopted by excavators and this further featured the machine's versatility. It was not long after before manufacturers of cranes decided that the crawler track market was a safe bet.



The Very First Crawler Crane

In the 1920s, Northwest Engineering, a crane company within the United States, mounted its first crane on crawler tracks. It described the new equipment as a "locomotive crane, independent of tracks and moveable under its own power." By the middle part of the 1920s, crawler tracks had become the preferred means of traction for heavy crane operations.



The Speedcrane

Developed by Charles and Ray Moore of Chicago, Illinois; the Moore Speedcrane was amongst the first to attempt to replicate rail lines for cranes. Made within Fort Wayne, Indiana, the Speedcrane was a steam-powered, wheel-mounted, 15 ton crane. In 1925, a company referred to as Manitowoc Shipbuilding Co, from Manitowoc, Wisconsin recognized the tracked crane's potential and marketability. They decided to team up with the Moore brothers to be able to manufacture it and go into business.

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