Tower cranes are being utilized frequently for huge building construction projects. They are required for the heavy lifting and placing of supplies and equipment. Tower cranes provide a unique configuration that provides a lot of benefits over more conventional cranes. These benefits comprise: quiet electrical operation, higher vertical lift, increased capacities, and reduced space requirements.
Hammerhead Crane
A hammerhead crane is another 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 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 is capable of operating 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 another crane. This really saves time in equipment expenses and provides a huge benefit in setup time as well. Self-erecting cranes are usually remote-controlled from the ground, even though there are some models which have an operator cab built onto the jib.
Self-erecting cranes are normally freestanding and this allows them the opportunity to be able to be moved around. There are some models which have a telescoping tower which enables the crane to work at various heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Normally, 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 great for such confined spaces. The majority of tower cranes have a fixed horizontal jib. The driver can lower or raise a luffing jib in order to enable the crane to swing in a reduced radius.