Tower cranes are being utilized regularly for huge building construction projects. They are necessary for the heavy lifting and placing of supplies and machinery. Tower cranes offer a unique design that provides numerous advantages over more conventional cranes. These advantages consist of: quiet electrical operation, higher vertical lift, 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 case. 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 holds the lifting cable and can 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 often assembled on site with the help of a different crane. This provides a huge advantage in setup time and really saves time in equipment costs as well. Self-erecting cranes are normally remote-controlled from the ground, although there are several models that 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 several models which have a telescoping tower that enables the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Often, in urban work environments, there is not enough clearance or space for the jib to freely rotate without being blocked by existing buildings. A luffing jib tower crane is great for such confined spaces. Nearly all tower cranes have a fixed horizontal jib. The operator can raise or lower a luffing jib in order to allow the crane to swing in a reduced radius.