Single Minute Exchange of Die (SMED)

What is SMED?

Single-Minute Exchange of Die (SMED) is a Lean Manufacturing methodology designed to significantly reduce setup or changeover times in production processes. Developed by Shigeo Shingo, SMED focuses on reducing the time it takes to switch from one production setup to another to under 10 minutes. This is achieved by streamlining and converting internal setup tasks (performed when a machine is stopped) into external tasks (performed while the machine is running), thereby minimizing downtime.

Core Principles of SMED:

1. Separation of Internal and External Setup Tasks: Internal tasks that require stopping the machine are minimized, with as many as possible converted into external tasks that can be done while the machine is operational.

2. Standardization: Processes are standardized to ensure consistency and efficiency during changeovers.

3. Parallelization: Tasks are performed concurrently where possible, reducing the overall changeover time.

Benefits of SMED:

• Increased Flexibility: SMED enables faster response to market changes and customer demands by allowing quick changeovers.
• Cost Savings: By reducing machine downtime, companies can achieve better resource utilization and lower production costs.
• Improved Productivity: Faster changeovers lead to more frequent production cycles, boosting overall production output.

SMED and Overall Equipment Effectiveness (OEE):
Implementing SMED directly impacts OEE by increasing machine availability and performance. By minimizing changeover times, companies can improve OEE, leading to enhanced productivity and competitive advantage in the marketplace.

SMED is a crucial tool in Lean Manufacturing, driving efficiency and flexibility in production environments.