Used Comedil Construction Cranes Salem

Crawler Crane
The crawler crane is a specific kind of mobile crane which is available with either a telescopic boom or a lattice boom which moves upon crawler tracks. Since this unit is a self-propelled crane, it is capable of moving around a jobsite and accomplishing jobs without much set-up. Because of their huge size and weight, crawler cranes are rather pricey and even difficult to transport from one site to another. The crawler's tracks offer the machine stability and enable the crane to work without using outriggers, although, there are several models that do utilize outriggers. What's more, the tracks provide the movement of the equipment.

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

The Very First Crawler Crane
In the 1920s, Northwest Engineering, a crane manufacturer within the United States, mounted its very first crane on crawler tracks. 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 Ray and Charles Moore of Chicago, Illinois was among the first attempts to replicate the rails for cranes. Made within Fort Wayne, Indiana, the Speedcrane was 15 ton, wheel-mounted, steam-powered crane. During 1925, a company called Manitowoc Shipbuilding Co, from Manitowoc, Wisconsin recognized the tracked crane's marketability and potential. They decided to team up with the Moore brothers in order to produce it and go into business.

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