Conveyor Roller Type – Monster belting
Monster Roller Design
In a belt conveyor one may identify two types of troughing sets : the upper carrying
sets, that have the function to support the loaded sections of the belt and to move the material ; and the lower sets that support the unloaded belt on its return section.The upper troughing sets may basically be in two arrangements : flat, with a single
horizontal roller generally supported by two fixed brackets from the convey or structure ; troughed, generally with 3 rollers supported within a frame which is
itself fixed to the conveyor structure.
There may be then, in the loaded sections, impact troughing sets with rollers with
rubber rings or suspended “garland” sets with 3 or 5 rollers. In the majority of belt conveyors, the upper troughing sets are used in a troughing arrangement, so that the carrying belt may transport a much greater amount of material than it could if the belt was flat, assuming an equal belt width and speed. The rollers of an upper troughing set are undoubtedly the most important components to be considered during the project phase.
Choice of Conveyor Roller sets
When choosing the troughing sets and their arrangements during the project phase
of the construction of a belt conveyor the following factors must be considered :
– total load capacity in tons / hour of conveyed material
– belt speed
– belt, uni-direction or reversible
– lump size of material and its angle of repose
– temperature and environmental challenge
– characteristics of load, humidity and material abrasiveness
– type, flexibility and weight of rubber belt
Defining the belt width, in relation to the flow of conveyed material and establishing
the speed, allows the choice to be made of the type of transom support and the correct roller series, matching the working conditions.
Above all when the rollers are subjected to a corrosive environment or materials (salt, chemical substances etc) very careful attention should be paid in their choice.
In the same way the transoms that carry the rollers must be protected with a suitable galvanised treatment. The weight of the material determines the dynamic load which the conveyor roller set has to sustain and also defines the pitch of the sets in the upper carrying sections of the belt. In practice the type of conveyor roller set is chosen that meets the criteria of load together with the use of the minimum rubber
belt width to provide the most economic solution. The choice of the return sets is also important, in that they take account of the belt centralising and cleaning conditions. In fact on the return sets the rollers are in contact with the dirty side of the belt and thus face a variety of problems.
Conveyor Roller
Conveyor Roller production workshop
Laboratory testing equipment
