For big building construction projects, tower cranes are utilized quite often. These machinery are quite necessary for heavy lifting as well as positioning supplies and equipment. Tower cranes offer a different configuration that provides lots of benefits over more conventional cranes. These benefits comprise: higher vertical lift, quiet electrical operation, reduced space requirements and increased capacities.
Hammerhead Crane
The hammerhead crane is usually 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 has 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
Self-erecting cranes are usually assembled on site with the help of another crane. This provides a huge advantage in setup time and greatly saves time in equipment costs as well. Self-erecting cranes are normally remote-controlled from the ground, though there are some models which 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 some models which have a telescoping tower which enables the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Often, in urban work settings, there is not enough space or clearance for the jib to freely rotate 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 lower or raise a luffing jib in order to allow the crane to swing in a reduced radius.