Turn downtime and defects into actionable efficiency insights. Track shifts, lines, and machines consistently daily. Compare runs, export reports, and drive continuous improvement culture.
Measure equipment efficiency using availability, performance, and quality factors. Enter shift data, calculate OEE. Spot losses fast and improve throughput with confidence today.
| Machine | Shift | Planned (min) | Downtime (min) | Ideal (sec) | Total | Good | OEE (%) |
|---|---|---|---|---|---|---|---|
| Press-01 | A | 480 | 45 | 30 | 820 | 790 | — |
| Filler-02 | B | 450 | 30 | 12 | 2050 | 2001 | — |
| Lathe-05 | C | 420 | 70 | 55 | 360 | 342 | — |
Planned production time should reflect the window you intend to run, excluding lunch, meetings, or planned maintenance. When the planned window is consistent, trends are comparable across shifts and lines. For multi-product lines, keep separate runs per product to avoid mixing different cycle standards.
Downtime drives availability loss, so define what counts as a stop and how it is logged. Include breakdowns, changeovers, material starvation, and safety stops. Capture start and end times at the machine, then reconcile against shift reports to reduce missing minutes and improve accountability. Tag each event with a reason code to enable improvement work.
Performance depends on the ideal cycle time multiplied by total output, compared with operating time. The ideal value should represent the best demonstrated rate under stable conditions. Review standards after tooling changes, new operators, or recipe updates. If performance exceeds 100%, investigate whether the ideal is conservative or counts are overstated.
Quality uses good units divided by total units, so the definition of good must be stable. Decide whether rework is counted as good only after it passes final inspection. Track scrap reasons to connect quality loss with root causes such as setup variation, wear, or measurement drift in inspection systems. A check is to reconcile scrap totals with warehouse dispositions.
Use OEE to compare the same type of asset, not to rank dissimilar processes. A high-speed filler and a manual assembly cell have different constraints. Segment results by line, product family, and shift. Pair OEE with throughput and cost metrics to ensure improvements translate into delivered capacity. A KPI set includes units per hour, changeover time, and defect rate.
Exporting results supports daily management routines. Use CSV for historical analysis and Pareto charts, and PDF for shift handovers and audits. Record the three factors and the loss snapshot, then assign one improvement action per top loss category. Review weekly to validate that actions move the next run. Document assumptions for cycle time and quality rules to keep reporting consistent.
Start with the largest loss category. If downtime dominates, stabilize changeovers and reduce breakdowns. If quality dominates, tighten setup verification. If performance dominates, remove micro-stops and confirm the ideal cycle time.
No. Values above 100% usually indicate an ideal cycle time that is too slow or counting issues. Keep the raw value for investigation, and validate standards before using the metric for comparisons.
Exclude planned breaks and scheduled maintenance from planned production time when you want an ‘in-shift’ view. Include them when comparing total calendar utilization. Use one rule consistently for your reports.
Yes. Use the line’s planned time and downtime, then use the bottleneck ideal cycle time and total line output. Ensure units represent the same flow and avoid mixing products with different standards in one run.
A good unit meets the defined specification at the measurement point you report from. If rework is allowed, count it as good only after it passes final inspection to avoid inflating quality.
CSV supports trend analysis, filtering, and pivot tables. PDF supports shift handovers, audits, and quick sharing. Using both formats helps operations and management work from the same validated numbers.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.