A telescopic crawler crane is a telescopic crane mounted on an undercarriage with a set of tracks that provide for the stability and mobility of the crane.
Telescopic cranes have booms that consist of a number of tubes fitted one inside the other. A hydraulic or other powered mechanism extends or retracts the tubes to increase or decrease the total length of the boom.
Crawler cranes can move on site and perform lifts with very little set-up, as the crane is stable on its tracks with no outriggers. In addition, a telescopic crawler crane is capable of travelling with a load.
Mobile tower cranes combine the benefits of the mobility and the rapid set-up time of a mobile crane, and the functional advantages of a tower crane.
As with typical mobile cranes, a mobile tower crane is able to travel on streets and highways, negating the need for additional haulage. It is designed for push-button assembly by a single person. A mobile tower crane can function as an able substitute for traditional tower cranes on construction sites, which can be conveniently repositioned as required.