Tower cranes are being utilized frequently for big building construction projects. They are required for the heavy lifting and positioning of materials and equipment. Tower cranes offer a different design which provides many advantages over more conventional cranes. These advantages include: 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 connected to a vertical tower, in this case. One end of the jib extends horizontally over the worksite and the other end of the jib acts as a counterweight. On the hammerhead crane, there is a trolley. This trolley holds the lifting cable and could travel along the length of the jib. The tower crane is capable of operating anywhere in the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are often assembled on site with the help of a different crane. This really saves time in equipment expenses and provides a huge benefit in setup time as well. Self-erecting cranes are normally remote-controlled from the ground, although there are several models which have an operator cab built onto the jib.
Self-erecting cranes are normally freestanding and this enables them the opportunity to be able to be moved around. There are some models which have a telescoping tower that allows the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Usually, within urban work settings, there is not enough clearance or space for the jib to freely rotate without being blocked by existing buildings. A luffing jib tower crane is great for such tight areas. Most tower cranes have a fixed horizontal jib. The operator could lower or raise a luffing jib in order to enable the crane to swing in a reduced radius.