For large building construction projects, tower cranes are utilized quite frequently. These machines are quite required for heavy lifting as well as placing supplies and equipment. Tower cranes provide a different configuration that provides numerous benefits over more conventional cranes. These benefits include: quiet electrical operation, higher vertical lift, reduced space requirements and increased capacities.
Hammerhead Crane
The hammerhead crane is commonly associated with a tower crane. The long horizontal jib is connected 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 has 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 normally assembled on site with the assistance of another crane. This provides a huge advantage in setup time and greatly saves time in equipment expenses as well. Self-erecting cranes are usually remote-controlled from the ground, though there are several 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 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
Nearly all urban work environments do not have enough space or clearance for the jib to freely rotate without existing buildings blocking its movement. A luffing jib tower crane is great for such confined spaces. Most tower cranes have a fixed horizontal jib. The operator is able to lower or raise a luffing jib in order to enable the crane to swing in a reduced radius.