What is the available time percentage for each machine used in the production process?

The available time percentage for each machine in a production process indicates the proportion of time that a machine is operational and available for production activities. An 80% available time percentage suggests that the machines are operational for that fraction of the total time, which allows for downtime due to maintenance, setup changes, or other interruptions.

This level of availability is often seen as a realistic target for many industrial processes, where 20% downtime allows for necessary maintenance and operational flexibility without significantly affecting overall productivity. An option of 100% available time would imply continuous operation without any downtime, which is generally not feasible in real-world scenarios due to the need for maintenance and unforeseen events that may cause production halts.

Choosing 80% reflects a balance between maximizing machine use while realistically accounting for necessary downtime, making it an ideal target for production scheduling and efficiency.