Different type of Tower Crane - TOWER CONFIGURATION

 - TOWER CONFIGURATION

The towers can be further classified as being mono towers, inner and outer towers and telescopic towers.

(a) Mono Towers - The jib is carried by a single tower structure which may be either fixed or slewing. Provision may be made in the design to permit the tower to be extended

(b) Inner and Outer Towers - They are characterised by the jib being carried by a fixed or slewing inner tower which is supported at the top of the fixed outer tower. Provision may be made in the design to permit the outer tower to be extended

(c) Telescopic Towers - The tower structure consists of two or more main sections which nest into each other to enable the height of the crane to be altered without the need for partial dismantling and re-erection. Telescopic towers are usually of slewing type and more common on rail-mounted and mobile tower cranes