For large building construction projects, tower cranes are used quite often. These equipments are rather essential for heavy lifting as well as placing materials and equipment. Tower cranes provide a different configuration which provides many advantages over more traditional cranes. These benefits comprise: higher vertical lift, quiet electrical operation, reduced space requirements and increased capacities.
A hammerhead crane is a different design which is most typically associated with a tower crane. In this case, a long horizontal jib is connected to a vertical tower. One end of the jib acts as a counterweight and the other end of the jib extends horizontally over the worksite. On the hammerhead crane, there is a trolley. This trolley has the lifting cable and could travel along the length of the jib. The tower crane is capable of operating anywhere within the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are usually assembled on location with the assistance of a different crane. This really saves time in equipment expenses and provides a huge advantage in setup time as well. Self-erecting cranes are usually remote-controlled from the ground, even if there are several models that have an operator cab built onto the jib.
Self-erecting cranes are normally freestanding and this enables them the opportunity to be able to be moved around. There are several models which have a telescoping tower that allows the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
The majority of urban work environments do not have enough clearance or space for the jib to freely rotate without existing buildings blocking its movement. A luffing jib tower crane is ideal for such confined areas. Most tower cranes have a fixed horizontal jib. The operator could lower or raise a luffing jib in order to allow the crane to swing in a reduced radius.