Comedil Construction Cranes San Diego

Crawler Crane

The mobile crawler crane is specific crane designed with either a telescopic boom or a lattice boom. These move upon the crawlers tracks. Because this crane is self-propelled, it could move around particular work sites without the need for much set up. Because of their huge weight and size, crawler cranes are are difficult to transport from one location to another and are fairly expensive. The crawler's tracks provide the equipment stability and allow the crane to work without the use of outriggers, although, there are some models that do utilize outriggers. In addition, the tracks provide the equipment's movement.



Early Mobile Cranes

The first mobile cranes were originally mounted to train cars. They moved along short rail lines which were particularly built for the project. When the 20th century arrived, the crawler tractor evolved and this brought the introduction of crawler tracks to the agricultural industry and the construction industry. Not long after, the crawler tracks were adopted by excavators and this further featured the equipment's versatility. It was not long after when manufacturers of cranes decided that the crawler track market was a safe bet.



The Very First Crawler Crane

Northwest Engineering, a crane manufacturer in the USA, was the first to mount its crane on crawler tracks in the 1920s. It described the new machine as a "locomotive crane, independent of tracks and moveable under its own power." By the mid-1920s, crawler tracks had become the chosen means of traction for heavy crane operations.



The Speedcrane

The Moore Speedcrane, developed by Charles and Ray Moore of Chicago, Illinois was amongst the first attempts to replicate the rails for cranes. Manufactured within Fort Wayne, Indiana, the Speedcrane was 15 ton, wheel-mounted, steam-powered crane. During the year 1925, a company known as Manitowoc Shipbuilding Co, from Manitowoc, Wisconsin recognized the marketability and the potential of the tracked crane. They decided to team up with the Moore brothers to be able to manufacture it and go into business.

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