The process of minimizing the time it takes to switch a 制造业 line or machine from producing one product to another.
- 方法: 工程, 产品设计, 项目管理
Changeover Time Reduction

Changeover Time Reduction
- 变革管理, 持续改进, 效率, 精益制造, 精益生产, 流程改进, 生产效率, 一分钟换模 (SMED), 减少废物
目标
如何使用
- Often using the SMED (Single-Minute Exchange of Die) methodology, this involves analyzing the entire changeover process to identify and streamline steps, converting internal (machine-off) tasks to external (machine-on) tasks.
优点
- Increases production flexibility and capacity, reduces manufacturing lead times, allows for smaller batch sizes and less inventory.
缺点
- Requires significant time and effort for analysis and implementation, may require investment in new tools or equipment, and needs strong operator involvement and training.
类别
- 工程, 精益西格玛, 制造业
最适合:
- Improving manufacturing efficiency by systematically reducing the downtime associated with production line changeovers.
Changeover Time Reduction through the SMED methodology has found its application across various industries, including automotive, aerospace, food and beverage, and electronics manufacturing, where the need for rapid response to market demands and customization is pronounced. This methodology is particularly effective during the design and implementation phases of manufacturing processes, especially when a company introduces new products or variations. Typically, a cross-functional team involving engineers, operators, and production managers initiates the changeover time reduction initiative, ensuring that diverse perspectives are captured to identify inefficiencies in the process. In practice, this involves detailed mapping of each step in the changeover, allowing teams to distinguish between internal tasks that require the machine to be stopped and external tasks that can be executed while the machine operates. Sources of inefficiencies may emerge from unnecessary adjustments or waiting times, which can be systematically addressed. Industries employing this methodology often report an improvement in production cycle times, enabling them to optimize resource allocation and enhance operational resilience. As a result, businesses can achieve heightened competitiveness by promoting just-in-time production philosophies, leading to more responsive supply chains and improved customer satisfaction.
该方法的关键步骤
- Identify and map out the entire changeover process in detail.
- Distinguish between internal and external tasks involved in the changeover.
- Convert as many internal tasks as possible to external tasks.
- Eliminate non-value-added activities from the changeover process.
- Standardize and document procedures for the modified changeover process.
- Train operators on the new changeover procedures to ensure consistency.
- Implement the new changeover process and monitor its performance.
- Continuously seek feedback and make incremental improvements to the process.
专业提示
- Implement a detailed time study of each changeover step using video analysis to identify non-value-added activities.
- Collaborate with cross-functional teams, including operators and engineers, to develop standardized work procedures that maximize external setup tasks.
- Utilize visual management tools, such as control charts and scoreboards, to continuously track and improve changeover performance metrics.
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