Comedil Construction Cranes San Antonio

Crawler Crane

The crawler crane is a particular type of mobile crane which is offered with either a telescopic boom or a lattice boom which moves upon crawler tracks. Since this unit is a self-propelled crane, it could move around a jobsite and completing tasks without a lot of set-up. Due to their huge size and weight, crawler cranes are are difficult to transport from one place to another and are fairly pricey. The crawler's tracks offer the machine stability and enable the crane to function without using outriggers, although, there are some units that do use outriggers. Also, the tracks provide the equipment's movement.



Early Mobile Cranes

The first mobile cranes were initially mounted to train cars. They moved along short rail lines which were specially made for the project. Once the 20th century arrived, the crawler tractor changed and this brought the introduction of crawler tracks to the agricultural industry as well as the construction business. Not long after, the crawler tracks were adopted by excavators and this further showcased the versatility of the equipment. It was not long after before crane companies decided that the crawler track market was a safe bet.



The Very First Crawler Crane

Northwest Engineering, a crane manufacturer in the United States, was the first to mount its crane on crawler tracks during 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 uses.



The Speedcrane

The Moore Speedcrane, developed by Charles and Ray Moore of Chicago, Illinois was one of the first attempts to replicate the rails for cranes. Made in Fort Wayne, Indiana, the Speedcrane was 15 ton, steam-powered, wheel-mounted crane. In the year 1925, a company called 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 in order to manufacture it and go into business.

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