Cranes functions are to lift heavy objects, with the flexibility to access sites that may be difficult for other types of cranes to access. It is a simple machine, very useful to carry load. Lever and pulleys are main functional units of the Eot cranes of Ahmedabad. Taking the mechanical advantage of the length, with the less applied force, heavy load can be lifted. In the pulley blocks, long wrapped cables are used to lift and move the objects. Cranes are model example of the energy conservation. In the cranes energy is proportional to torque multiplied with distance.
The functions of cranes are these are also used in factories and lift very heavy loads. Since the load is extremely heavy, the hoist is set on a trolley that will move in one direction along one or two beams, which move along an elevated or ground level tracks. Many difficult tasks can be made easy with the help of the crane. With all safety measure, it is highly useful apparatus in modern technological era.