Tower cranes are being utilized frequently for big building construction projects. They are needed for the heavy lifting and positioning of materials and machines. Tower cranes provide a unique design which provides numerous benefits over more conventional cranes. These benefits comprise: quiet electrical operation, higher vertical lift, increased capacities, and reduced space requirements.
Hammerhead Crane
A hammerhead crane is a different configuration 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 holds 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 another crane. This provides a huge benefit in setup time and really saves time in equipment costs as well. Self-erecting cranes are normally remote-controlled from the ground, even though there are several models which have an operator cab built onto the jib.
The self-erecting crane is usually freestanding to allow them the opportunity to be moved around. There are some models that have a telescoping tower that enables the crane to work at various heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Nearly all urban work environments do not have enough space or clearance for the jib to freely rotate without existing buildings blocking its movement. A luffing jib tower crane is great for such tight areas. The majority of tower cranes have a fixed horizontal jib. The driver is able to raise or lower a luffing jib in order to enable the crane to swing in a reduced radius.