Data Analytics Team
IoTFlows
Writes about OEE, downtime and utilization: how each number is calculated and what it tells you about your machines.
Articles
OEE and metrics
Manufacturing KPIs with formulas and worked examples
21 production KPIs, each with one formula, one unit and a worked example from the same lathe shift, plus the denominator traps that make two reports disagree.
Downtime and utilization
What is machine utilization, and how do you calculate it?
Machine utilization is running time divided by the time a machine could have run. Learn the four denominators, work one week by hand and pick the right one.
Downtime and utilization
What utilization to expect by machine type
A manual CNC runs 40–60% of the shift, a coil-fed press 65–80% and a lights-out cell 80–90%. See why loading sets the ceiling and how to set each goal.
Downtime and utilization
Utilization, uptime, OEE, OOE and TEEP on one calendar
OEE, OOE and TEEP divide the same good output by ever larger slices of the week. Work one week through all five metrics and see why shifts cap TEEP.
OEE and metrics
Which OEE factor is costing you the most time?
Compare availability, performance and quality in lost minutes, check the inputs behind each factor, then weigh each loss by its cost to see where to look first.
OEE and metrics
How to set ideal cycle time, and what it does to OEE
The ideal cycle time sets OEE performance and the shift goal. Learn who should own it, how to time it, and what a 10% error does to every number built on it.
Downtime and utilization
How to build a downtime Pareto from real minutes
Rank downtime reasons by the minutes they cost: sum each stop under its reason, sort, add a cumulative line. A worked week of stops shows where to act first.
Downtime and utilization
Do micro-stops count as downtime?
Micro-stops are downtime, but standard OEE definitions book them as a performance loss. See where they land, why OEE holds steady and how to set the cutoff.
Downtime and utilization
Which downtime reason codes to log, and how many
Log 8 to 12 reasons operators pick by hand, plus a few that rules assign to routine stops. Get a 15-code starter list, rules for each code and a worked Pareto.
OEE and metrics
How to calculate OEE from one shift’s numbers
OEE is availability × performance × quality. Work one shift through by hand, check the result in lost minutes and avoid the mistakes that skew the number.
OEE and metrics
OEE monitoring tools for manufacturing, compared
OEE monitoring tools differ in where their data comes from: an operator, a wired signal, a sensor, the controller or an MES. Compare five types and pick one.
OEE and metrics
What is OEE?
OEE measures how much planned production time becomes good parts made at full speed. Learn the three factors, the formula, one worked shift and what it hides.