The slewing unit and all components above are then unbolted from the mast and fixed to the climbing frame, which elevates those using large hydraulic rams. In order to achieve this, a climbing frame is bolted around the top section of the mast. Since the reach of a mobile crane is limited, a tower crane is equipped to build itself by adding columns to its mast.

Tower cranes are usually assembled up to a certain height by means of mobile cranes. These switches measure the amount of ‘collapse’ and alert the operator when the threshold is exceeded. In order to prevent the crane from overloading, the crane is equipped with a maximum load limit and a load-moment limit switch. In order to minimize these forces, heavier loads are lifted closer to the mast, as compared to lighter loads. The distance from the mast at which the load is hauled affects the crane’s stability, due to the generation of overturning forces. Components Of A Tower CraneĪ tower crane works on the simple principle of equilibrium of moment of inertia (Photo Credit : Fouad A. The most striking feature of this crane is that it is self-building and can allow a building to be constructed adjacent to or even around it. What Is A Tower Crane?Ī tower crane is an inverted L-shaped structure that is capable of lifting several tons of weight to precarious heights. However, their load-bearing capacities are less than their fixed counterpart equivalents. They often have telescopic booms that extend to increase their reach. Mobile cranes, on the other hand, are usually mounted on movable platforms that may either be manually operated or motorized. Common types of fixed cranes include tower cranes and overhead cranes. Fixed cranes, as their name suggests, remain on-site for the duration of the project and must be dismantled before shifting to another location. Depending on the nature of the project, cranes can either be fixed or mobile. Cranes can lift heavy loads with little human assistance (Photo Credit : Bannafarsai_Stock/Shutterstock)Ī crane is a machine that is capable of lifting heavy goods to great heights with little human assistance.

Mobile crane collapse radius