Components of A Tower Crane

January 08, 2021

Despite being able to lift a lot of weight, a tower crane is extremely simple in both its construction and operation. It is comprised of the following parts:

1. Base

Foundation base is the most crucial part of the tower crane that supports the entire structure. It is made of concrete that has been poured a few weeks before the crane assembly commences. The crane is anchored to this base.

2. Mast

The mast section of tower crane refers to the truss-shaped columns that give the crane its working height. Instead of being one continuous column, they are designed to be bolted to each other and other crane components. The concrete base and the mast columns impart stability to the crane and prevent it from toppling over.

3. Slewing unit

The slewing unit comprises a gear and motor arrangement, enabling the crane to rotate.

4. Working arm

Also known as the jib, this extends perpendicular to the mast, and houses the hook and trolley that lift the load.

5. Machinery arm

Also known as the counter jib, this houses the counterweights and pulleys that balance the crane.

6. Hook and trolley

The hook is the main load-bearing component that hauls loads. It is attached to a trolley that allows the hook to raise and lower, as well as move towards and away from the mast. This is done with the help of cables and pulleys attached to the trolley.

7. Operator cab

This is the control center of the crane and is attached to the slewing unit. In order to get to the cab, the operator must climb a series of ladders within the mast.

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