Blow Molding & Hollow Plastic Products worked example

Downstream Pack Rate at 71% target downstream pack-through rate: a worked example

Suppose target downstream pack-through rate falls to 71%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate the percentage of blow molded output that downstream packing, bagging, boxing, palletizing, or sleeving can absorb against a target pack rate.

The inputs for this scenario

  • Containers packed downstream: 39,600 units (held at the documented default)
  • Containers produced by blow molder: 42,000 units (held at the documented default)
  • Target downstream pack-through rate: 71 % (the input this scenario stresses; the baseline uses 98)

Working through the calculation

  • The calculation starts from the formula this tool documents: Downstream pack-through rate = containers packed downstream ÷ containers produced by blow molder × 100.
  • Downstream pack-through rate works out to 94.29 % packed at these inputs, and this is the headline figure for the scenario.
  • Pack rate gap to target works out to -23.29 points at these inputs.
  • Containers packed downstream works out to 39,600 containers at these inputs.
  • Containers produced by blow molder works out to 42,000 containers at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target downstream pack-through rate sits at 98% and the headline result is 94.29 % packed, this scenario lands almost exactly on the baseline at 94.29 % packed.
  • It computes the percentage of molded containers that reach packing and the gap in points between that rate and your target. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Downstream pack-through rate: 94.29 % packed (headline result)
  • Pack rate gap to target: -23.29 points
  • Containers packed downstream: 39,600 containers
  • Containers produced by blow molder: 42,000 containers

Run it with your numbers

  • To rerun this with your own numbers, open the live Downstream Pack Rate calculator, set target downstream pack-through rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.