Manufacturing Glossary

A standard for measuring manufacturing productivity. OEE = Availability × Performance × Quality. World-class OEE is 85%+.

The average time a machine runs before experiencing a failure. Higher MTBF indicates better machine reliability.

The average time taken to repair a machine after a failure. Lower MTTR means faster response and less downtime.

Any period when a machine is not producing due to breakdowns, changeovers, or other stoppages.

The time during which a machine is available and running as expected.

The percentage of scheduled time that equipment is available for production. Availability = (Planned Time - Downtime) / Planned Time.

The ratio of actual production speed to ideal production speed. Accounts for slow cycles and small stops.

The ratio of good units produced to total units produced. Also called First Pass Yield.

The time required to complete one unit or cycle of production from start to finish.

The rate at which you need to produce products to meet customer demand. Takt = Available Time / Customer Demand.

Scheduled maintenance performed to prevent failures before they occur. Reduces unplanned downtime.

Using data and analytics to predict when equipment will fail, allowing maintenance before failure occurs.

An unplanned machine stoppage due to equipment failure requiring repair.

The time required to switch a machine from producing one product to another. Also called setup time.

A lean manufacturing methodology to reduce changeover time to under 10 minutes.

A holistic approach to maintenance that involves all employees in maintaining equipment.

The six categories of productivity loss: Breakdowns, Setup/Adjustments, Small Stops, Reduced Speed, Startup Rejects, and Production Rejects.

A production method aimed at minimizing waste while maximizing productivity.

Japanese term meaning "continuous improvement". A philosophy of making small, incremental improvements.

Software that manages maintenance activities, work orders, and asset history.