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 Example 4 for Takt-Based Scheduling Locate this document in the navigation structure

This example shows takt-based scheduling with material-dependent production rates. Two materials are manufactured. A material-dependent production rate is specified for material B in the line hierarchy. The planned order for material A is for 1 piece and the planned order for material B is for 2 pieces.

In this example, the maximum production rate of the production line is used as the basis for takt-based scheduling.

Master data from line design

  • Number of takts

The production line consists of three line segments each with one takt. Every product must, therefore, flow through 3 takts, the number of takts is 3.

  • Maximum production rate

A maximum production rate of 6 pieces per hour is specified for the line hierarchy. This corresponds to a minimum takt time of 10 mins. The minimum takt time is the length of time it should take to process a material in one takt (also assembly line speed).

  • Planned production rate of the current period

The planned production rate manually specified for the current period corresponds to the maximum production rate of 6 pieces per hour. This means that every 10 minutes a material is placed on the production line in line segment 1.

  • Material-dependent production rate

A material-dependent production rate of 3 pieces per hour is specified for material B. The quotient of this material-dependent production rate and the maximum production rate results in the factor 0.5. Therefore, only half the quantity of material B can be produced per time unit compared to other materials.

Scheduling in Sequencing

Order A has an order size of 1 and a retention time of 30 mins.

RT = (3 takts - 1) * 10 mins +1 * 10 mins = 30 mins

Order B has an order size of 2 and is produced using a planned production rate of 3 pieces per hour. The retention time is therefore 60 minutes and is calculated using the following formula:

RT = (3 takts - 1) * 10 mins + 2 * 20 mins = 60 mins

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