A tower crane is a type of construction equipment used to lift and move heavy materials on building sites. It consists of a tall vertical mast, a horizontal arm, and a hoist that can raise and lower loads. Tower cranes are often used in the construction of tall buildings, as they can reach great heights and have a large lifting capacity. These cranes are typically anchored to the ground and can rotate 360 degrees, allowing them to cover a wide area. They are essential for projects involving large materials, such as steel beams and concrete panels, making them a vital tool in the construction industry.