One of the most common pieces of mechanical handling equipment would be the conveyor. This type of machine moves materials from one location to another. Conveyors are most useful when it comes to transporting heavy or bulky materials. These conveyor systems allow quickest and most efficient transportation for a wide variety of materials. This makes them very popular in the handling and packaging industries. Conveyors are also popular with consumer applications, as they are frequently seen in supermarkets and airports. They constitute the final leg of a bag or item delivery to the customers. Various conveying systems are available and are used according to the different uses in different industries. There are also chain conveyors as well. These conveyors have two parts namely the floor and the overhead. Chain conveyors are made up of enclosed tracks, towline  I-Beam, power & free, and hand pushed trolleys.