Tower cranes are being utilized often for huge building construction projects. They are necessary for the heavy lifting and positioning of supplies and equipment. Tower cranes offer a different configuration that provides lots of benefits over more conventional cranes. These advantages include: 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 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
A self-erecting crane is capable of completely assembling itself at the jobsite without any help from another crane. This provides a huge advantage in setup time and greatly saves time in equipment expenses too. Self-erecting cranes are normally remote-controlled from the ground, although there are some 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 some models that have a telescoping tower which enables the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Usually, in urban work environments, there is not enough space or clearance for the jib to freely rotate without being blocked by existing buildings. A luffing jib tower crane is great for such tight areas. Most tower cranes have a fixed horizontal jib. The operator could raise or lower a luffing jib in order to allow the crane to swing in a reduced radius.