For large building construction projects, tower cranes are utilized rather frequently. These machines are quite required for heavy lifting as well as positioning supplies and equipment. Tower cranes provide a different configuration that offers many advantages over more traditional cranes. These advantages consist of: quiet electrical operation, higher vertical lift, reduced space requirements and increased capacities.
Hammerhead Crane
The hammerhead crane is usually associated with a tower crane. The long horizontal jib is attached to a vertical tower, in this situation. 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 has the lifting cable and travels along the length of the jib. The tower crane can operate anywhere within 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 benefit in setup time and really 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 usually freestanding to enable them the opportunity to be moved around. There are some models that have a telescoping tower that enables the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Often, in 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 ideal for such confined areas. 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.