For big building construction projects, tower cranes are used rather frequently. These equipments are quite necessary for heavy lifting as well as placing supplies and equipment. Tower cranes offer a different configuration which offers numerous benefits over more traditional cranes. These benefits consist of: higher vertical lift, quiet electrical operation, increased capacities, and reduced space requirements.
Hammerhead Crane
The hammerhead crane is commonly associated with a tower crane. The long horizontal jib is connected 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. There is a trolley on the hammerhead crane. This trolley holds the lifting cable and could travel along the length of the jib. The tower crane could 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 assistance from a secondary crane. This greatly saves time in equipment costs and provides a huge advantage in setup time as well. Self-erecting cranes are often remote-controlled from the ground, although there are some models that have an operator cab built onto the jib.
Self-erecting cranes are usually freestanding and this allows them the opportunity to be able to be moved around. There are some models that have a telescoping tower which enables the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Normally, within urban work settings, there is not enough clearance or space for the jib to rotate freely without being blocked by existing buildings. A luffing jib tower crane is ideal for such tight areas. Nearly all tower cranes have a fixed horizontal jib. The driver could raise or lower a luffing jib in order to allow the crane to swing in a reduced radius.