Internal Move kanbans are essentially permission to retrieve or move materials or information. The move kanban authorizes one point of a process to get what they need from a previous process.
Example of how a move kanban works
Every step in a process has an inbound, working and outbound point. The move kanban works with inbound and outbound points in a process. Inbound areas typically hold materials, subassemblies, supplies and various parts, information or data that is needed during the process. The outbound point holds the completed part from that process. Keep in mind that a kanban could be a card, container, light, dolly, empty space or a variety of other things.
In this case the inbound materials contain a move kanban. When the next process begins to consume those materials, the move kanban is removed and attached to a different group of materials to signal or trigger their movement.
Here’s another example. A machinist places his parts in an outbound stocking point. For his process they are complete and he needs to move them to the next step. He places a move kanban with the parts. When a water spyder sees it he picks the kanban and materials up and moves it to the next steps inbound point. When the materials begin production on step two the kanban is removed and placed on another group of materials to keep the flow going.
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