Accumulation is the collecting of products on a conveyor to move them as a group instead of individually. Accumulation occurs by halting the product on the conveyor allowing the products behind it to catch up and group together.
Accumulation is needed when you want to move a slug of products through a system at one time, typically seen when packaging multiple products in a single bundle. Or, if one part of the production cycle runs at a different rate. Or as a safe guard against a line shut down if a machine at the end of the line goes down. You can continue running and accumulate product before the downed machine instead of shutting down the entire line.
SpanTech's Tube Top chain conveyor is designed specifically for accumulation applications. By allowing the tubes to roll under the accumulated product, the Tube Top chain decreases the back pressure felt on the products. (Back pressure created and applied to the first products by all the accumulated products behind them, pushing on them). The rolling tubes are also much more gentle, preferable on products that have printed surfaces.
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