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minimum pressure accumulation conveyors

Accumulation Conveyor - Minimum Pressure Accumulation Conveyor

accumulation conveyor systems, Hytrol, TriFactor Distribution Solutions, Lakeland, Florida, case and pallet conveyor system

In a distribution or manufacturing operation, accumulation conveyors are commonly used to transport and accumulate cartons or unit loads so that they are efficiently queued up and fed into sorting, wrapping, palletizing, strapping or various others processes. Accumulation conveyors provide a buffer zone where a steady supply of product can be oriented or held back when downstream processes are not ready for additional product. In addition, they can be used to smooth out fluctuations in production line rates caused by stoppages or machines operating at different speeds.

There are two types of accumulation conveyors; minimum and zero pressure.  A minimum pressure accumulation conveyor doesn't eliminate the driving force while the products accumulate whereas on zero pressure accumulation conveyors, the driving force is completely eliminated.


Minimum Pressure Accumulation Conveyors

Minimum pressure accumulation conveyor allows products to lightly come into contact with each other as they accumulate on the conveyor line. An effective minimum pressure accumulation conveyor keeps the product stopped, even with the cumulative back pressure of the products behind it, until the appropriate signal is given to release the product.  Great consideration and understanding of all the static and dynamic forces must be accomplished, in order to effectively apply minimum pressure accumulating conveyors in your material handling system

Minimum pressure accumulating conveyors are commonly found in manufacturing facilities where there is more uniformity in the product dimensions and weights.  Here are two of the most common minimum pressure accumulation case conveyors:

Belt Driven Live Rollers with Pressure Rollers  - The operation of a minimum pressure accumulating conveyor using BDLR with pressure rollers is very basic and often a good economic decision.  The conveyor uses standard BDLR except that each of the 3 or 4 zones in a 10' or 12' section contains a pressure roller mounted in a spring adjusted carrier. The pressure roller senses the required driving friction required to between the drive belt and the carrying rollers in order to conveyor and accumulate without too much back pressure. 

Line Shaft Conveyor - Line shaft, or spool conveyor can be altered just like BDLR in order to make it minimum pressure accumulation conveyor.  Each zone in a 10' or 12' section has a pneumatically operated break to be applied to the drive rollers in each zone.  When a photoeye senses product presence in the adjacent downstream zone, the break is activated and accumulation occurs. When the zone is cleared, the break releases causing the product to convey to the next zone.  


TriFactor is sought out by companies nationwide to provide solutions that reduce inventory and delivery time, lower costs of manufacturing, distribution and transportation, and improve customer service.  If you are looking for an Edge on your competition, discover how TriFactor can make a difference, call today at 1-800-507-4209.

For additional information on Distribution Center Planning, Choosing a Conveyor System Improving Material Handling Efficiency, Costly Conveyor Maintenance Mistakes and related material handling issues visit the TriFactor Learning Center.