For huge building construction projects, tower cranes are used rather frequently. These equipments are quite required for heavy lifting as well as placing supplies and equipment. Tower cranes offer a unique design which provides numerous benefits over more conventional cranes. These benefits consist of: higher vertical lift, quiet electrical operation, reduced space requirements and increased capacities.
Hammerhead Crane
A hammerhead crane is a different design which is most typically associated with a tower crane. In this situation, a long horizontal jib is connected to a vertical tower. 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 has the lifting cable and travels along the length of the jib. The tower crane is capable of operating 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 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, although there are several models which have an operator cab built onto the jib.
The self-erecting crane is usually freestanding to enable them the opportunity to be moved around. There are some models that have a telescoping tower that allows the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Most urban work settings 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 great for such tight spaces. The majority of tower cranes have a fixed horizontal jib. The driver can lower or raise a luffing jib in order to enable the crane to swing in a reduced radius.