Most end-of-line OEE loss comes from five predictable stoppages. Each one has an engineering fix — this article maps them.
The five silent killers
Across our installed base, OEE audits repeatedly identify the same five stoppages: product jams at infeed, case flap misfolds, misaligned tape, changeover downtime, and board-quality rejects.
1. Product jams at infeed
Flexible products drift and pile at transfer points. Fix: servo-timed metering and dedicated end-of-arm tooling that transfers collations as one rigid unit.
2. Flap misfolds
Flaps catch and fold wrong, jamming the machine. Fix: vacuum-assisted flap control and positive-guidance rails that hold flaps until the moment of folding.
3. Tape and seal failures
Mis-set tape heads produce retapes. Fix: low-profile heads, automatic head height sensing, and self-adaptive sealing that follows each case size.
4. Changeover downtime
Manual changeover consumes 30 minutes or more per SKU. Fix: tool-free, recipe-driven changeover that completes in under 10 minutes — or self-adaptive machines that need no changeover at all.
5. Board-quality rejects
Machines that reject imperfect corrugate stop your line, not just the case. Fix: compliant robotic or servo forming that absorbs board variance.
Measuring the result
After engineering out these five, our clients typically see OEE gains of six to ten percent — which on a one-shift line is the equivalent of adding a partial second shift, at zero labor cost.