For large building construction projects, tower cranes are used quite frequently. These machines are quite essential for heavy lifting as well as positioning materials and equipment. Tower cranes provide a unique design that offers many benefits over more traditional cranes. These advantages consist of: quiet electrical operation, higher vertical lift, increased capacities, and reduced space requirements.
Hammerhead Crane
A hammerhead crane is a different configuration which is most often associated with a tower crane. In this situation, a long horizontal jib is attached 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 holds the lifting cable and could travel along the length of the jib. The tower crane is capable of operating anywhere within the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are normally assembled on location with the help of a different crane. This greatly saves time in equipment costs and provides a huge benefit in setup time too. Self-erecting cranes are often remote-controlled from the ground, even though 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 some models that have a telescoping tower that allows the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Nearly all urban work environments 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 areas. Nearly all tower cranes have a fixed horizontal jib. The driver could lower or raise a luffing jib in order to enable the crane to swing in a reduced radius.