What they typed
Operations“Our packaging line stops for about 3 hours every shift and we have no idea why. The line is new, bought six months ago, but the stoppages started right away. Operators keep saying something about the film, but nobody has actually looked into it. Each hour of downtime costs us roughly $900 in lost output and we have a big order due in 5 weeks.”
What VESQOR returned
Confidence: 74%Packaging Line Stoppage Investigation
Situation at a Glance
| Metric | Figure |
|---|---|
| Unplanned downtime per shift | ~3 hours |
| Cost per lost hour | $900 |
| Daily cost (assuming 1 shift) | $2,700 |
| Daily cost (2 shifts) | $5,400 |
| Weeks to deadline | 5 |
| Line age | 6 months (stoppages from day 1) |
The line has never run cleanly. That is the most important single fact here. A fault that appears immediately on a new machine and persists for six months is almost never a random mechanical failure — it is a setup, specification, or materials mismatch that was present at commissioning and has never been corrected.
What the Operator Signal Actually Tells You
Operators are pointing at the film. That is a specific, consistent, and therefore credible signal. It should have been acted on immediately; the fact that it was not is an organisational gap, not a technical mystery. The film complaint typically maps to one of four failure modes on a new packaging line:
| Film-Related Cause | What Operators See | Most Likely Stoppage Mechanism |
|---|---|---|
| Wrong film spec supplied (gauge, COF, slip agent) | Film tears, jams, or won't seal | Machine parameters were set for a different film than what's being run |
| Film roll splicing / core tension | Stoppage at predictable interval (end of roll) | Unwind tension inconsistent; splice fails to feed through |
| Film tracking misalignment | Edge wander, film bunching, die-cut misregister | Guide rollers or dancer arm set incorrectly at installation |
| Sealing temperature vs. film type mismatch | Burn-through, weak seals, jam at seal bar | OEM default temperature profile doesn't match actual film chemistry |
The fact that stoppages started "right away" strongly favours the first or fourth cause — a specification mismatch baked in at commissioning — rather than a component wearing out.
Root-Cause Investigation: What to Do in the Next 48 Hours
These steps are sequenced by speed and cost — no new equipment or external resource required for the first three.
Step 1 — Pull the film specification (today, ~1 hour)
Get the purchase order or goods-received note for the film stock currently in use. Compare it against:
- The film specification in the OEM machine manual or commissioning document
- The film specification the machine was quoted and configured for
If these don't match, you have your answer. The fix is either to source the correct film or re-parameterise the machine for the film you're actually using. Do not do both simultaneously — change one variable at a time.
Step 2 — Log the next five stoppages in real time (next 1–2 shifts)
Assign one person per shift to record, at the moment of each stoppage:
- Exact time elapsed since last stoppage or last roll change
- What was happening on the line (sealing, feeding, cutting, splicing)
- What the operator physically had to do to restart
- Whether a roll change had occurred in the preceding 5 minutes
Pattern in this log will either confirm film-roll-boundary failures (mechanical) or mid-roll failures (temperature, tracking, or spec).
Step 3 — Check sealing temperature settings against film data sheet (today, ~30 minutes)
Pull the film supplier's data sheet. Find the recommended seal temperature range for that film. Compare it to the current seal bar setting on the machine. A mismatch of even 5–10°C can cause repeated seal failures or film distortion that jams the line.
Step 4 — Engage the OEM (this week)
The machine is six months old. Contact the OEM's technical support and state explicitly:
- Stoppages have occurred from day one
- Operators consistently identify the film path
- You need a commissioning review, not a maintenance visit
Most OEM warranties cover commissioning defects within the first year. Frame it that way. If the OEM set machine parameters at installation without verifying them against your actual film stock, that is a commissioning failure, and they have an obligation to correct it under warranty or service agreement. Request their commissioning sign-off sheet — if one was never completed, that is leverage.
Step 5 — Source a backup film supplier (this week, parallel to above)
If the current film stock turns out to be misspecified, you need a replacement in hand before your 5-week deadline. Identify at least one alternative supplier who can provide film meeting the OEM's stated specification, with samples available for a trial run within 10 days.
5-Week Deadline: Risk and Recovery Math
At 3 hours of downtime per shift, you are currently running at approximately 62% of theoretical capacity (assuming an 8-hour shift). Fixing the root cause — even partially — changes the picture materially:
| Scenario | Downtime per shift | Capacity recovery | Cumulative gain over 5 weeks (1 shift/day) |
|---|---|---|---|
| No change | 3 hrs | — | — |
| Reduce to 1 hr (partial fix) | 1 hr | +25% effective output | ~87 additional shift-hours of production |
| Eliminate stoppage (full fix) | 0 hrs | +37.5% effective output | ~131 additional shift-hours |
If the order requires output that the current line cannot deliver even at full capacity in 5 weeks, that is a separate conversation about overtime, second shifts, or co-manufacturing — but that calculation cannot be run until you know what this line actually produces when it runs cleanly. That figure is a gap in the information provided.
The financial case for acting this week is unambiguous. Even if the investigation and OEM call consume 8 hours of management time, recovering 1 hour per shift pays back $900/day. A 10-day delay to investigate costs a further $9,000–$27,000 depending on shift pattern.
Immediate Action Sequence
- Today: Pull film spec and compare to OEM machine specification. Log the gap if one exists.
- Today: Check seal temperature settings against film data sheet.
- This shift: Assign someone to log the next five stoppages in real time.
- Within 48 hours: Call OEM technical support. Use the word "commissioning" not "breakdown."
- Within 5 days: Identify and contact an alternative film supplier for samples.
- Day 7–10: Run a controlled trial with corrected parameters or alternative film; measure stoppage frequency against baseline.
- Day 10–14: If stoppages persist after film correction, escalate to a full OEM on-site commissioning review under warranty.
What Remains Unknown
Three inputs would sharpen this analysis significantly:
- Shift pattern (1, 2, or 3 shifts/day) — determines total weekly cost and production recovery potential
- Order volume vs. line capacity at full run rate — determines whether fixing the line is sufficient or whether additional capacity is needed
- Whether a commissioning sign-off was ever completed — determines warranty leverage with the OEM
None of these gaps blocks the actions above; they affect the financial sizing and the escalation posture.