How a Tower Crane is Assembled

All tower cranes consist of the same basic parts: 

Tower cranes in general are composed of three main parts: the base, the mast section, and the slewing unit.

1. The base is bolted to a large concrete base that supports the crane.

2. The base connects to the tower mast, which gives the tower crane its height.

3. The slewing unit consists of a gear and motor, attached to the top of the mast, allowing the crane to rotate along its axis. In turn, the slewing unit consists of three parts:

1) Jib (Working arm): A horizontal jib that carries the load, with a trolley that runs along its length to move the load in and out.

2) Machinery arm(Counter Jib): A shorter horizontal jib that holds the hoisting motor. It also contains electronic controls, the cable drum, and concrete counterweights to keep balance.

3) Operator’s cabin:The movement of the crane is controlled from the operator’s cabin. Within the cabin, you’ll find the operator’s chair with joystick controls, electronic monitoring devices, and communication systems.