How to Calculate the number of Kanban
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 141 TCF vendor(s) and 69 ad partner(s), or used specifically by this site.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by managing your options below. Look for a link at the bottom of this page or in the site menu to manage or withdraw consent in privacy and cookie settings.
Base Theory of Kanban Calculation
The number of Kanban you need to have in the circuit between downstream and upstream is a simple calculation. It works both for "production" and "move" Kanban.
Number of Kanban = [ DD * LT * (1 + % SS) ] / Q
DD =Daily Demand
LT = Lead Time (in Days)
SS = Safety Stock
Q = Quantity in a Container
Example:
Let us imagine a downstream process that uses 100 tapes/day (on average).
The lead time to obtain new tapes once the signal start from the Point of Use (POU), arrive to the upstream (or supplier) and the tapes are delivered to the POU is 5 days.
The Safety Stock in percentage is 20% (to compensate demand variation or delays)
Every container is of 50 tapes.
N° of Kanban = 100 * 5 * 1,20 / 50 = 12 Kanban
What does it means?
It means that in the "circuit" between upstream and downstream 12 Kanban (Tags, Container or other form of Kanban) has to be present.
Points of attention.
The demand and lead time has to be with the same time base (Days, Hours, Minutes).
The Number of Kanban has to be rounded up to the integer
