Tower cranes are being utilized regularly for large building construction projects. They are necessary for the heavy lifting and placing of supplies and equipment. Tower cranes provide a different configuration which offers a lot of benefits over more conventional 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 attached 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 holds the lifting cable and travels along the length of the jib. The tower crane is capable of operating 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 provides a huge benefit in setup time and greatly saves time in equipment costs too. Self-erecting cranes are usually remote-controlled from the ground, though there are several models which have an operator cab built onto the jib.
The self-erecting crane is generally freestanding to enable them the opportunity to be moved around. There are several models which have a telescoping tower which allows the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Normally, within urban work settings, there is not enough space or clearance for the jib to rotate freely 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 is able to raise or lower a luffing jib in order to enable the crane to swing in a reduced radius.