Abstract

This paper presents a mini crane used for handling 3D concrete – prefabricated components. All travelling, revolving cranes should be designed for stability ensuring their safe operation without any hazard. Some results about the relationship of the loud and the reach decided by crane stability also represent in the form of the chart by means of which one cun assess the safe load depending on the reach. In some construction site, our cranes have been working safely, reliably and ensuring stability.