Types of Kanban:
A Kanban system need two types of Kanbans for its successful operation :
1. A withdrawal Kanban
2. A production Kanban
Withdrawal Kanbans
These travel among the work centres and are utilized for authorizing the transfer of parts from one work centre to another. In a Kanban system, they always accompany the flow of material from one process to another. A withdrawal Kanban should indicate the part number, revision level, lot size and the routing procedure. Withdrawal Kanbans must show the preceding process as well as subsequent process's names and their locations.