Tower cranes are being utilized regularly for large building construction projects. They are needed for the heavy lifting and positioning of supplies and machines. Tower cranes offer a different configuration which offers numerous benefits over more conventional cranes. These advantages 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 case. 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 can operate anywhere in the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are often assembled on site with the assistance of a different crane. This really saves time in equipment expenses and provides a huge benefit in setup time 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 enable them the opportunity to be moved around. There are several models that have a telescoping tower which allows 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 freely rotate without being blocked by existing buildings. A luffing jib tower crane is great for such confined spaces. The majority of tower cranes have a fixed horizontal jib. The operator is able to lower or raise a luffing jib in order to enable the crane to swing in a reduced radius.