Advancements in technology have meant that the construction industry is capable of building some pretty impressive structures. These buildings would not be possible, however, without the assistance of tower cranes. Understanding the different components of these cranes can go a long way to determining whether this is the machine you require or not, as well as why they are so useful.
This is generally comprised of a steel unit that is connected to a custom-built concrete pad. It provides the structure with stability, which means that it needs to be both well-designed and well-constructed.
This provides the crane with its height and is often designed so that the mast can grow or shrink during construction. It is generally comprised of individual steel sections that are connected together. The number of sections will determine the overall height.
- Slewing Unit/Top Climber
A slewing unit sits at the top of the mast and is responsible for housing the motor and machinery that enables the crane to rotate. A top climber sits just below this and enables the mast to grow. The unit disconnects from the mast and the top climber raises it higher.
This is the working arm of the tower crane. It is formed of individual steel sections connected together and extends from the top of the slewing unit parallel to the ground. A small trolley is attached to the underside and runs the length of the boom, containing the hoisting mechanism.
ArmThis also extends out from the top of the slewing unit (in the opposite direction to the boom). It is quite short in length, is comprised of steel sections, and houses machinery and electrics needed for the operation of the crane. It requires large counter-weights for balance.
- Chain and Hook
This sits below the small trolley on the boom and is raised or lowered by the hoisting mechanism. It is responsible for picking up loads and placing them in the required location.
- Operating Cab
This is where the driver sits and it houses the controls needed to operate the crane. It is generally found on top of the slewing unit and has only enough space for one person to sit comfortably. The front and sides are fitted with windows for an unimpeded view.
Now that you are familiar with the different parts of a tower crane, you should be in a much better position to determine whether it will meet the needs of your construction project or not. We also hope that you have a greater understanding of how useful these machines truly are and how they differ to other cranes that are currently on the market.