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Former Member
Jun 10, 2009 at 02:33 AM

To handle scrap parts in production kanban

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Hi all

We are running kanban production in machining centers. A kanban card is shot to EMPTY to generate a production order before production and then shot to FULL to make goods receiving 101 after production. If there is scrap parts happening during the production of a kanban, what is the right way to handle? To be specific, I have the following questions and let's say the kanban size is 20 pieces -

1. Should we always fulfill a kanban with a full kanban size, meaning we produce 21 pieces when the operator finds 1 piece of scrap? Or should we just finish production of 20 pieces no matter how many of them are scrapped? What if the QC department finds another 1 piece of part out of tolerance afterwards? When on earth should the kanban card be shot to FULL?

2. If the scrap part has happened due to the bad quality of raw material, should we still do scrapping movement 551 in SAP? I mean, we will need to ask for replacement for the bad materials and it should not go to our cost center finally.

I understand the questions could be naiive but really any input would be highly appreciated.

yzh