For big building construction projects, tower cranes are utilized rather often. These machines are quite needed for heavy lifting as well as placing supplies and equipment. Tower cranes provide a different configuration which offers lots of advantages over more conventional cranes. These benefits include: quiet electrical operation, higher vertical lift, increased capacities, and reduced space requirements.
Hammerhead Crane
The hammerhead crane is usually associated with a tower crane. The long horizontal jib is attached to a vertical tower, in this situation. One end of the jib extends horizontally over the worksite and the other end of the jib acts as a counterweight. On the hammerhead crane, there is a trolley. This trolley holds the lifting cable and travels along the length of the jib. The tower crane can operate anywhere within the jib's radius.
Self-Erecting Tower Cranes
A self-erecting crane is capable of completely assembling itself at the jobsite without any help from a secondary crane. This provides a huge advantage in setup time and really saves time in equipment expenses as well. Self-erecting cranes are normally remote-controlled from the ground, though there are several models which have an operator cab built onto the jib.
The self-erecting crane is usually freestanding to allow them the opportunity to be moved around. There are some models that have a telescoping tower which enables the crane to work at various heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Usually, in urban work environments, there is not enough space or clearance for the jib to rotate freely without being blocked by existing buildings. A luffing jib tower crane is great for such confined areas. Nearly all tower cranes have a fixed horizontal jib. The driver is able to raise or lower a luffing jib in order to enable the crane to swing in a reduced radius.