Home » Tower Cranes’ Function in High-Rise Building Projects

Tower Cranes’ Function in High-Rise Building Projects

tower crane

Any city’s skyline is likely to have a few tower cranes, which are among the biggest pieces of construction machinery. Tower cranes are used by construction businesses to raise bulky items like steel and concrete. Tower cranes are also used to transport large items like motors, generators, and acetylene torches.

Because tower cranes are smaller than high-rise structures, it is simple to undervalue their lifting power based just on appearance. Following are the questions that arise when we hear about Tower Cranes.

  • How does the tower crane maintain its balance?
  • What does the tower crane cost?
  • How is it possible to raise such a heavy load?
  • Does the crane increase in height in tandem with the building?

The fundamental operating concepts of tower cranes will be covered in this essay.

Tower Crane Components

The base, the mast or tower, and the slewing unit are the three primary components of a tower crane.


The crane’s base serves as its major point of support. It is attached to a substantial concrete foundation that supports the whole structure.


The crane’s height is provided by the supporting structure, which is attached to the base. The crane’s strength comes from a sizable triangulated lattice structure on the mast.


The crane may spin around its axis thanks to the slewing unit, which comprises gear and a motor mounted to the top of the mast. The slewing unit itself is made up of three pieces.

Working arm or jib

a piece that is horizontal and supports the weight, with a trolley running along its length to carry the load into and out of it.

shorter horizontal component

A shorter horizontal component known as a machinery arm holds the load-lifting motor. In order to maintain balance, it also has a cable drum, electrical controls, and concrete counterweights.

Operator’s cabin

This area is where the crane’s operator controls every operation.

Specifications for a Tower Crane

The following are common tower crane specs, although keep in mind that they might vary based on the type and maker:

80 meters or 265 feet is the maximum unsupported height. Given that the building rises around the crane, it may reach higher if it is linked to the building. 70 meters or 230 feet is the maximum reach. Maximum lifting capacity: 18.2 metric tons or 19.8 tons. 20 tons of counterweights, or 16.3 metric tons

The maximum load is 18 metric tons, however, when the load is at the end of the job, the crane is unable to hoist that much weight. The crane can safely lift a greater amount of weight the closer the cargo is to the mast.

In order to avoid overloading, operators have two limit switches at their disposal: a maximum load switch that keeps the crane safe from the load’s bending force by staying below 18 metric tons, and a maximum moment switch.

It’s crucial to monitor the weather while using tower cranes on building sites.

A collapse may occur if a powerful wind gust causes the load and structure to become unstable. Project managers should regularly monitor weather reports and steer clear of lifting activities during poor conditions.

At the project locations, a weather monitoring system can issue warnings concerning hazardous wind conditions that are not anticipated by predictions.

Crane Support System for Towers

When someone first sees a tower crane, one of their initial inquiries can be whether or not they are upright. The stability of the tower crane is influenced by many factors. The construction business created the concrete pad a few weeks before the crane was scheduled to arrive. The pad typically measures 30x30x4 feet (10x10x1.3 meters) and weighs around 400,000 pounds. The crane’s base is supported by large anchor bolts that are firmly fixed in the concrete pad.

Alexia Hope

Alexia is the author at Research Snipers covering all technology news including Google, Apple, Android, Xiaomi, Huawei, Samsung News, and More.