Types of Roller Conveyor and Conveyor Systems
26th January 2021
Roller conveyors and conveyor systems are mechanical devices or assemblies which transport materials with minimal effort. They are used for moving materials between two fixed work-stations. They are mainly used for moving bulk or unit load continuously or intermittently, uni-directionally from one point to another over fixed path. Their primary function is conveying of the material by the help of movement of some parts / components of the equipment. The equipment as a whole does not move. Roller conveyors come in many different varieties to suit the different products or materials which need to be transported.
Roller conveyors normally consist of a frame which supports rollers, wheels, buckets or belt, upon which materials move from one place to another. They can be powered by a motor, by gravity, or manually. The decision to provide roller conveyors is to be taken with care, since they are normally costly to install. Moreover, they are less flexible and, where two or more converge, it is necessary to coordinate the speeds at which the two roller conveyors move.
There are several types of roller conveyors and conveyor systems. These can be classified as (i) belt conveyors which can be flat, trough, closed, metallic, portable, or telescoping type, (ii) chain conveyors which can be apron or pan, slat, cross-bar or arm, car type / pallet, en-mass, carrier chain and flat-top, trolley, power and free, and suspended tray or swing-tray type, (iii) haulage conveyor which is a special class of chain conveyor in which load is pushed or pulled and the weight is carried by stationary troughs, surfaces or rail and which can be drag chain, flight or tow with over-head, flush-floor, and under-floor configuration, (iv) cable conveyor, (v) bucket conveyor which can be with gravity discharge, pivoted bucket, or bucket elevator type, (vi) roller conveyor which can be gravity, powered / driven, or portable type, (vii) screw conveyor, (viii) pneumatic conveying systems which can be pipe line, air-activated gravity (air slide), or tube type , and (ix) hydraulic conveying system.
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