Tower cranes are being used frequently for huge building construction projects. They are needed for the heavy lifting and positioning of materials and equipment. Tower cranes offer a unique configuration that provides many advantages over more traditional cranes. These benefits comprise: higher vertical lift, quiet electrical operation, increased capacities, and reduced space requirements.
Hammerhead Crane
The hammerhead crane is frequently associated with a tower crane. The long horizontal jib is connected to a vertical tower, in this situation. One end of the jib acts as a counterweight and the other end of the jib extends horizontally over the worksite. There is a trolley on the hammerhead crane. This trolley has the lifting cable and can travel along the length of the jib. The tower crane could operate anywhere in the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are usually assembled on site with the assistance of a different crane. This provides a huge advantage in setup time and greatly saves time in equipment costs as well. Self-erecting cranes are often remote-controlled from the ground, though there are several models which 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 some models that have a telescoping tower which allows the crane to work at various 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 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 allow the crane to swing in a reduced radius.