For big building construction projects, tower cranes are utilized quite frequently. These equipments are quite required for heavy lifting as well as positioning supplies and equipment. Tower cranes provide a unique configuration which provides many advantages over more traditional cranes. These benefits consist of: higher vertical lift, quiet electrical operation, reduced space requirements and increased capacities.
Hammerhead Crane
The hammerhead crane is frequently associated with a tower crane. The long horizontal jib is attached 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 has the lifting cable and could travel along the length of the jib. The tower crane could operate anywhere in the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are usually assembled on location with the assistance of a different crane. This really saves time in equipment expenses and provides a huge benefit in setup time too. Self-erecting cranes are usually remote-controlled from the ground, though there are several models that have an operator cab built onto the jib.
The self-erecting crane is generally freestanding to allow them the opportunity to be moved around. There are several 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
Most urban work environments do not have enough clearance or space for the jib to rotate freely without existing buildings blocking its movement. A luffing jib tower crane is great for such confined spaces. Nearly all tower cranes have a fixed horizontal jib. The driver could lower or raise a luffing jib in order to allow the crane to swing in a reduced radius.