Tower crane

Notwithstanding its apparent simplicity, this machine has to comply with stringent safety and environmental standards. Market competition forces manufacturers to consider the cost of every element.

The features of this type of crane are:

- power of the installation from 10 kW to 115 kW depending on the load to hoist (2 to 350 metric tons),

- hoisting, rotation, trolleying and translation are driven by three-phase AC motors with two or three gears or AC drives. Braking is mechanical or electric,

- the system requires about a dozen of sensors and the man-machine interface can be in the cabin or remote-controlled.

The choice of implementation naturally focuses on an optimised compact system in a single panel at the basement of the crane.

The highlighted colour coding in the selection table above shows the options at a glance

The Simple Compact is eliminated because its options are too limited. Both Optimised Compact and Evolutive Optimised Compact are suitable fig. The latter is even more suitable if the machine is a modular design or if remote maintenance is required.

The choice of components naturally depends on the customer’s constraints and those of the chosen implementation. The figures below illustrate both possible implementations:

                             Compact optimised solution

                                   Evolutive optimised compact solution

The components are described in detail in the following sections.