Development
depends on infrastructure and infrastructure on heavy machineries. Of
all the heavy machines cranes acquire an important position as they are
involved in the building and maintenance of huge projects. Crane machines are the huge tower like machineries having ropes meant to lift or to lower any heavy devices. Cranes are not permanent structure. In fact it is a temporary structure either fixed in the ground or mounted on certain vehicles. Cranes are operated either through cab operator or through infrared or radio signals.
Applications
Cranes are indispensable for the developments of heavy projects. Their high loadage capacity and easy operations has made them highly useful in following areas :
- Building of bridges
- Building of airports
- Building seaports
- Container lifting device in seaports
- Building of big multi storied structures
- In heavy industries etc.
Based on the size and the loading capacities cranes can be grouped as follows :






