Tower cranes are being used frequently for large building construction projects. They are essential for the heavy lifting and positioning of supplies and machines. Tower cranes provide a unique design that provides many advantages over more conventional cranes. These benefits consist of: higher vertical lift, quiet electrical operation, increased capacities, and reduced space requirements.
Hammerhead Crane
The hammerhead crane is commonly associated with a tower crane. The long horizontal jib is attached to a vertical tower, in this situation. 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 can 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 normally assembled on site with the assistance of a different crane. This provides a huge benefit in setup time and really saves time in equipment costs too. Self-erecting cranes are usually remote-controlled from the ground, although there are several models which 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 which 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 clearance or space for the jib to freely rotate without existing buildings blocking its movement. A luffing jib tower crane is ideal for such confined spaces. The majority of 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.