For big building construction projects, tower cranes are used rather often. These machines are quite necessary for heavy lifting as well as positioning supplies and equipment. Tower cranes offer a different design which provides many advantages over more traditional cranes. These benefits comprise: higher vertical lift, quiet electrical operation, reduced space requirements and increased capacities.
Hammerhead Crane
The hammerhead crane is frequently associated with a tower crane. The long horizontal jib is connected to a vertical tower, in this situation. One end of the jib acts as a counterweight and the other end of the jib extends horizontally over the worksite. There is a trolley on the hammerhead crane. This trolley holds the lifting cable and can travel along the length of the jib. The tower crane can operate anywhere in the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are usually assembled on location with the help of another crane. This greatly saves time in equipment costs and provides a huge advantage in setup time too. Self-erecting cranes are often remote-controlled from the ground, though there are several models which have an operator cab built onto the jib.
The self-erecting crane is normally 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 multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Usually, in 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. The majority of tower cranes have a fixed horizontal jib. The driver can lower or raise a luffing jib in order to allow the crane to swing in a reduced radius.