This is a conveyor which is placed on rollers like the table can consists of rolling slides on it, so that the load which is uploaded on the table can be moved forward and backward easily with the help of rollers on it. It can be in the form of table on which rollers are placed or it can be in a format of a table which is rigid to the surface. They may be powered (or live) or non-powered (or gravity). The materials or load which is placed on the table must have a high rigid riding surface that means they should be comparatively heavy as the loads placed on wheel conveyors. The weight which can be lifted by this roller conveyor is that minimum of three rollers must support smallest loads at all times. In this there are tapered rollers which are formed on boundaries or curves which are used to maintain load orientation. In this there are further two types, 1) gravity roller conveyor and 2) live (powered) conveyor.