For big building construction projects, tower cranes are used quite often. These machines are quite needed for heavy lifting as well as placing materials and equipment. Tower cranes provide a different configuration that offers many benefits over more traditional cranes. These advantages comprise: higher vertical lift, quiet electrical operation, increased capacities, and reduced space requirements.
Hammerhead Crane
The hammerhead crane is commonly 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. There is a trolley on the hammerhead crane. 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
A self-erecting crane is capable of completely assembling itself at the jobsite without any help from another crane. This really saves time in equipment costs and provides a huge benefit in setup time 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 normally freestanding to enable them the opportunity to be moved around. There are several models which have a telescoping tower which enables the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
The majority of urban work settings do not have enough clearance or space for the jib to rotate freely without existing buildings blocking its movement. A luffing jib tower crane is great for such confined spaces. Most tower cranes have a fixed horizontal jib. The operator could raise or lower a luffing jib in order to enable the crane to swing in a reduced radius.