Rüstaufwand

Rüstaufwand refers to the time and resources required to prepare a machine or production line for a new manufacturing run. This preparation, often called setup or changeover, involves activities such as cleaning the equipment, adjusting settings, loading materials, and performing initial test runs. The goal is to minimize Rüstaufwand to reduce downtime and increase overall production efficiency. High Rüstaufwand can lead to longer lead times, increased work-in-progress inventory, and higher production costs, especially for products with small batch sizes.

Several strategies are employed to reduce Rüstaufwand. One common approach is Single-Minute Exchange of Die (SMED), a methodology that systematically analyzes and shortens setup times. SMED involves distinguishing between internal setup activities (those that require the machine to stop) and external setup activities (those that can be performed while the machine is running). By converting internal activities to external ones and streamlining the remaining internal tasks, significant reductions in setup time can be achieved. Other methods include standardizing setup procedures, using pre-assembled tooling, and investing in more flexible or automated equipment.

The impact of Rüstaufwand is particularly significant in industries with high product variety or frequent product changes, such as automotive manufacturing, pharmaceuticals, and printing. Efficient management of Rüstaufwand is crucial for companies aiming to achieve lean manufacturing principles, improve responsiveness to market demands, and maintain a competitive edge. The cost associated with Rüstaufwand is a key metric considered in production planning and economic batch size calculations.