Star principle

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Star principle based on REFA

The production according to the star principle is a process principle for which a central interim storage (dynamic production buffer) is characteristic.

The individual workstations and machines are arranged around this central warehouse (picture star principle based on REFA ). All material transports are carried out between the warehouse and the individual processing points. Transport between each other is not provided. In terms of space requirements, star production tends to be cheaper than production using the flow principle, as there are no buffers between the workstations. With regard to the time structure, the individual transport processes from and to the warehouse have a negative impact. The prerequisite for the functioning of this principle is a well and quickly functioning information system, if possible in connection with an automated production data acquisition (BDE), such as the transponder technology (RFID ). In addition, a central distribution of work is required.

In practice, the warehouse is often not located in the middle between the processing stations, but on the edge, which increases the path even further.

The star principle is used sensibly if there are large deviations in quantity between the individual production steps, as is often the case, for example, in the pharmaceutical, food and cosmetics industries. Another reason could be that you are working with very valuable or dangerous materials that you want to keep well under control.

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