Translating a PET Filler Rate into Case-Packer Demand

A case packer is usually assessed in packs per minute, while a filler is often quoted in bottles per hour. Convert between them using the actual bottles per case before comparing capacities.

Use an explicit calculation

For example, 20,000 bottles per hour packed twelve per case creates about 27.8 cases per minute before losses and interruptions. This arithmetic is a demand example, not a machine rating. A different pack count changes the required case rate.

Test the packaging cycle

Include case supply, bottle collation, closure and discharge. Inspect pack quality during replenishment and restart. A touch screen or PLC does not establish that the complete mechanism can sustain the calculated output.

Account for unavailable time

If an illustrative packer can operate for only 50 minutes in each scheduled hour, it must produce 20,000 ÷ 12 ÷ 50, or about 33.3 twelve-bottle cases per running minute, to meet the same hourly demand. Include the actual replenishment and stop history rather than applying an unexplained speed margin.