The choice and utilization of a tower crane requires considerable planning. It showed reach from its fixed position to all locations from which loads are to be lifted and placed. Therefore, when selecting a crane for a particular project, the engineer must ensure that the weight of the expected loads can be handled at their corresponding required radius.
Tower cranes are selected for use based on factors such as:
Weight, dimensions, lift height and radius of the heaviest loads
Frequency and duration of usage
Maximum free-standing height of the crane
Maximum braced height of the crane
Machine-climbing arrangement
Weight of crane supported by the structure
Available headroom which can be developed
Area which must be reached
Hoisting speed of the crane
Length of cable that the hoist drum can carry
Other normal procurement factors such as price, reputation and service back-up of manufacturer/ agent