For big building construction projects, tower cranes are used rather frequently. These equipments are quite essential for heavy lifting as well as placing supplies and equipment. Tower cranes provide a different design that offers many advantages over more traditional cranes. These advantages comprise: quiet electrical operation, higher vertical lift, increased capacities, and reduced space requirements.
Hammerhead Crane
A hammerhead crane is a different design that is most often associated with a tower crane. In this case, a long horizontal jib is connected to a vertical tower. 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 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 assistance from a secondary crane. This provides a huge benefit in setup time and greatly saves time in equipment expenses too. Self-erecting cranes are normally remote-controlled from the ground, even though there are some models that have an operator cab built onto the jib.
The self-erecting crane is usually freestanding to allow them the opportunity to be moved around. There are several models that have a telescoping tower that 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 space or clearance for the jib to rotate freely without existing buildings blocking its movement. A luffing jib tower crane is ideal for such tight spaces. The majority of tower cranes have a fixed horizontal jib. The driver could raise or lower a luffing jib in order to allow the crane to swing in a reduced radius.