For huge building construction projects, tower cranes are used quite often. These equipments are rather essential for heavy lifting as well as positioning materials and equipment. Tower cranes offer a different design which offers a lot of benefits over more traditional cranes. These benefits include: higher vertical lift, quiet electrical operation, reduced space requirements and increased capacities.
Hammerhead Crane
The hammerhead crane is usually associated with a tower crane. The long horizontal jib is connected to a vertical tower, in this situation. 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 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 expenses and provides a huge benefit in setup time as well. Self-erecting cranes are usually remote-controlled from the ground, although there are some models that 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 allows the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Usually, in urban work environments, there is not enough clearance or space for the jib to rotate freely without being blocked by existing buildings. A luffing jib tower crane is great for such tight spaces. Most tower cranes have a fixed horizontal jib. The operator could lower or raise a luffing jib in order to allow the crane to swing in a reduced radius.