Production Efficiency Calculator
Calculate the OEE (Overall Equipment Effectiveness) index, actual production output and number of parts per shift. The calculator accounts for availability, machine performance, reject rate and downtime — key data for production planning.
Input Parameters
Results
Fill in the data and click Calculate
ARGUS monitors OEE in real time and identifies the root causes of efficiency losses
OEE combines three dimensions of effectiveness — ARGUS automatically identifies the main sources of losses and suggests corrective actions.
How do we calculate production efficiency (OEE)?
OEE (Overall Equipment Effectiveness) is a composite production efficiency index equal to the product of three components: availability, performance and quality. An OEE of 100% means production with no downtime, at full speed and with no rejects — in practice, OEE values of 85%+ are considered world-class.
The calculator determines the OEE index and its components from production data.
A — availability = (run time − downtime) / run time
P — performance = actual output / theoretical output
Q — quality = (output − rejects) / output
Typical OEE values in injection molding: 60–70% (average), 75–85% (good), >85% (excellent, world-class). Most common sources of loss: changeovers (10–20% of time), breakdowns (5–10%), micro-stoppages (3–8%), reduced cycle speed (5–15%), quality rejects (1–5%).
OEE Loss Analysis
Identifying the main sources of losses enables targeted optimization actions:
Low performance → optimize cycle time, reduce micro-stoppages
Low quality → optimize parameters, control material
Production planning: knowing OEE, cycle time and number of cavities, you can accurately plan how many machine hours you need to fulfill an order. Actual output = (available time × OEE × 60) / cycle time × number of cavities.
Improving OEE
The greatest improvement potential usually lies in availability — reducing changeover time using SMED (Single Minute Exchange of Die) can raise OEE by 10–15%. The second area is performance — cycle time optimization delivers direct output gains without additional investment. ARGUS automatically identifies the areas with the greatest improvement potential.
ARGUS monitors OEE in real time and automatically identifies the root causes of losses
See for yourself — book a presentation and explore the OEE dashboard in ARGUS.