In
Just-In-Time (JIT) systems, the subassemblies and parts required for final
assembly are pulled in small batches from the supplying work centers whenever
they are needed. One of the most popular methods used for implementing JIT
is through the use of kanbans. Kanban means “card” or “visible
record” in Japanese.
A
single-card kanban system uses a withdrawal or “move kanban” to trigger
production.
In
the above system, work center A produces a part that is moved to the storage
area in containers that hold a certain number of parts. Work center B
pulls a container from storage when it needs the material and may return an
empty container to the storage area. When B pulls the container, the move
kanban is removed from the container and placed in the card rack at A. The
move kanban in A indicates an authorization for A to produce another container
of parts.
