For large building construction projects, tower cranes are utilized quite frequently. These equipments are quite necessary for heavy lifting as well as positioning supplies and equipment. Tower cranes offer a unique design which provides a lot of advantages over more traditional cranes. These benefits comprise: quiet electrical operation, higher vertical lift, reduced space requirements and increased capacities.
Hammerhead Crane
The hammerhead crane is frequently associated with a tower crane. The long horizontal jib is connected to a vertical tower, in this case. 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 can travel along the length of the jib. The tower crane can operate anywhere within the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are often assembled on site with the help of a different crane. This provides a huge benefit in setup time and greatly saves time in equipment costs 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 that allows the crane to work at various heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Normally, 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 confined areas. Nearly all 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.