![]() The time horizon is very important and will vary depending on whether your focus is capacity planning, process design, production scheduling, or plant floor operations. Customer DemandĬustomer demand is the quantity of parts you need to manufacture over a specified time horizon to meet the requirements of your market. It is simply “customer demand” where the customer is internal (your production schedule). Required quantity is the quantity of product that you need to manufacture for this given part run. Operable takt time is the takt time that your manufacturing process is capable of achieving on a sustained basis. Running at operable takt time is attainable production. It includes budgeted time for losses that occur during planned run time, such as downtime, small stops, slow cycles, and defects. This is largely determined by the constraints of your manufacturing process. ![]() available production time) is that doing so excludes blocks of time that may cause takt time to vary based on how those blocks are scheduled (e.g., changeovers, meetings, and planned maintenance). One reason for calculating takt time with planned run time (a.k.a. It excludes planned stop time (e.g., changeovers and planned maintenance) and time not scheduled for production (e.g., breaks and time between shifts). It includes run time (actually running) and downtime (expected to be running). Planned run time is the time that your manufacturing process needs to be scheduled to “run” in order to meet production requirements. In this scenario, multiply Operable Takt Time by Required Quantity to determine Planned Run Time. In this scenario, operable takt time should be considered a “living number” that is updated over time with changes to your process and people.Ī variant of the takt time formula can be used for scheduling production. With operable takt time in mind, the takt time formula can be rearranged and applied by production planners to estimate how much time a given part run or job will need. Over the long term, it can be more substantially improved through larger-scale improvement projects and process changes. Over the short term, it can be incrementally improved through continuous improvement techniques. Operable takt time is more or less “set” or “fixed” by the design of your manufacturing process. When takt time and operable takt time are aligned, you are able to fully and efficiently meet customer demand. You can think of these as two sides of the same coin: takt time (driven by demand) and operable takt time (driven by your manufacturing process). Operable Takt Time: The pace you can actually achieve with your current process and equipment.Takt Time: The pace that exactly meets customer demand given available production time.This is referred to as operable takt time. Operable Takt TimeĪ very useful variant of the takt time formula focuses on the capabilities of your manufacturing process - what your process can actually achieve on a sustained basis. It does not include time where the process is not expected to be running: planned stop time and not scheduled time. ![]() ![]() Takt time is calculated across available production time, which includes run time and unplanned stop time.
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