Tower cranes are being utilized regularly for huge building construction projects. They are needed for the heavy lifting and placing of materials and machines. Tower cranes provide a different design that provides numerous benefits 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 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. There is a trolley on the hammerhead crane. This trolley has the lifting cable and could travel along the length of the jib. The tower crane is capable of operating anywhere within the jib's radius.
Self-Erecting Tower Cranes
Self-erecting cranes are often assembled on location with the help of another crane. This really saves time in equipment expenses and provides a huge advantage in setup time too. Self-erecting cranes are usually remote-controlled from the ground, though there are several models which have an operator cab built onto the jib.
The self-erecting crane is usually freestanding to enable them the opportunity to be moved around. There are some models that have a telescoping tower which allows the crane to work at multiple heights without the need to reconfigure the tower.
Luffing Jib Tower Crane
Normally, in 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 spaces. Nearly all tower cranes have a fixed horizontal jib. The operator can lower or raise a luffing jib in order to allow the crane to swing in a reduced radius.