Manufacturing Calculation Engines
Five verified mathematical models with shopfloor loss decomposition, real-time formula telemetry, and industrial action rules.
OEE & Six Big Losses Diagnostic Engine
Deconstruct shift efficiency into Availability, Performance, and Quality while attributing downtime minutes across Nakajima’s 6 Big Losses.
Reported Performance is 114.1% (exceeds 100.0%). Do not cap values artificially. Perform engineering audit: (1) Re-verify if nameplate cycle time (12s) is overly conservative post-Kaizen, (2) Inspect optical/proximity counter sensors for double-pulse chatter.
* Recommendations derived from actual reported input losses; requires gemba verification by authorized plant personnel.
Apply these calculated parameters across other operational modules
Want downtime tracking and OEE calculations automated per shift across plant teams without brittle spreadsheets?
14-day plant pilot includes extrusion line onboarding, supervisor briefing, and WhatsApp shift handover.
Shopfloor Mathematical Foundations
Every calculation engine adheres strictly to established industrial literature, eliminating end-of-shift spreadsheet disputes.
OEE = Availability × Performance × Quality
Official lunch breaks and shift briefings are deducted from Planned Production Time. Machine halts reduce Availability, while running below nameplate speed reduces Performance.
Takt Time = Net Available Time ÷ Customer Demand
Takt Time is the heartbeat of the plant dictated by customer purchase frequency. Stations are engineered at 85–90% of Takt to absorb micro-stoppages without building excess WIP.
DPMO = (Defects ÷ Opportunities) × 1,000,000
Six Sigma assumes an empirical 1.5σ long-term mean shift. Reaching 6.0σ represents 3.4 defects per million opportunities, dramatically reducing reliance on heavy manual sorting inspection.
RTY = Y₁ × Y₂ × ... × Yₙ
Compounds first-pass yields across sequential processes. Five operations at 95% yield result in 22.6% total defect leakage, proving that single-station metrics blind plant leaders.
Line Balance = Total Work ÷ (n × Bottleneck)
Maximum line throughput is mathematically constrained by the bottleneck workstation. Discrepancies between other stations and the bottleneck generate pure balance delay idle waste.
Shift Handover Telemetry Export
Use the "Copy Handover Summary" button above to paste structured ASCII shift logs directly into daily production handover logs or emails.