Single Minute Exchange of Die (SMED) is a Lean methodology created by Shigeo Shingo to drastically reduce equipment changeover or setup time. Originally used in manufacturing, SMED separates activities into two types:
Internal activities: Tasks done while equipment is stopped
External activities: Tasks that can be done while the equipment is still running
By converting internal steps into external ones, teams minimize downtime and keep workflows moving.
In the construction industry, Single Minute Exchange of Die (SMED) helps reduce delays and optimize productivity. For instance, quick couplers—used on excavators—allow for fast attachment changes without manual tools, keeping projects on schedule.
Other SMED Applications in Construction:
Fast-track scaffold assembly and disassembly
Pre-assemble modular building components off-site
Rapid tool or crew changeovers for repetitive tasks
The goal of Single Minute Exchange of Die (SMED) is simple: reduce setup time to keep both equipment and crews moving. While the name implies setups under 10 minutes, the deeper aim is continuous improvement.
Originally, SMED cut press setup times from over an hour to just minutes. In construction, similar improvements lead to faster project delivery, fewer delays, and higher productivity.
Implementing SMED brings several powerful benefits to your project:
Reduced Downtime – Faster changeovers mean more equipment uptime and fewer delays.
Improved Efficiency – Removing unnecessary steps creates smoother operations.
Cost Savings – Less idle time and labour waste translate to direct savings
Greater Flexibility – Teams can respond quickly to project changes or issues.
Higher Quality – Standardized processes reduce errors and rework.
Enhanced Workplace Safety – Predictable setups lower the risk of last-minute hazards.
Whether it’s switching buckets on a machine or rotating teams between tasks, Single Minute Exchange of Die (SMED) boosts efficiency across the board—making construction safer, faster, and more cost-effective.