smed

**SMED** is the **single-minute exchange of dies methodology for converting lengthy setup operations into rapid, repeatable changeovers** - it restructures setup work so as much activity as possible occurs while equipment is still running. **What Is SMED?** - **Definition**: Lean changeover framework that targets setup durations in the single-digit minute range. - **Core Steps**: Separate internal versus external tasks, convert internal tasks to external, then streamline remaining internal tasks. - **Typical Tools**: Preset fixtures, functional clamps, parallel staffing, and visual setup standards. - **Result**: Reduced downtime, faster batch transitions, and consistent startup quality. **Why SMED Matters** - **Lot Size Compression**: Fast changeovers remove pressure to run oversized batches. - **Higher Availability**: More productive tool hours are recovered from non-value setup work. - **Quality Stability**: Standardized setup reduces startup defects and misconfiguration risk. - **Demand Alignment**: Frequent product switching becomes practical for mixed-demand schedules. - **Cultural Discipline**: SMED builds structured observation and incremental improvement habits. **How It Is Used in Practice** - **Video Analysis**: Record setup events and quantify each motion and waiting segment. - **Internal-to-External Conversion**: Move preparation, staging, and checks outside downtime window. - **Standard Work Lock**: Document best sequence, train operators, and audit adherence each shift. SMED is **the proven playbook for high-speed, low-variation changeovers** - disciplined implementation converts setup loss into flexible, demand-ready capacity.