SMED changeover study: measure last good to first good
Use a time observation sheet to separate internal and external work, preserve safe setup steps, and verify a repeatable changeover improvement.
Changeover
Switching a line or machine from one product to another.
The work and elapsed time required to switch a line, machine, recipe, tooling setup, or materials from one product to another. Shorter, repeatable changeovers increase available capacity and flexibility.
See also: OEE · Takt time · Recipe management
Use the concept: Cp, Cpk, Pp & Ppk calculator · Downtime log template · MTBF, MTTR & availability calculator
In depth
Line balancing and bottleneck capacity: work from the constraint
Estimate serial-line capacity, distinguish parallel lanes from stations, and use a small observation study before adding automation.
OEE loss trees: make availability, performance, and quality actionable
Why one OEE percentage is not a diagnosis, and how a loss tree turns downtime, speed loss, and defects into work the plant can actually prioritize.