Maintaining Weak FIFO in Parallel FIFO Lanes

Sometimes you would like to put more material in a single FIFO lane than the space you have available. In this case you would have to use a combination of two or more parallel FIFO lanes. In my last post I described how to maintain a strict FIFO sequence in parallel lanes. This post looks at an easier but less accurate method.

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Maintaining Strong FIFO in Parallel FIFO Lanes

FIFO lane with different partsFIFO lanes are a common and easy way to manage material flow. However, sometimes there is not enough space to make a long FIFO lane. In this case the FIFO lane is often split into multiple sub-segments. This post looks at how to maintain strict (or strong) FIFO in such parallel FIFO lanes.

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Production Sequences: FCFS, EDD, and Others

In my last post I looked at delivery sequences like FIFO, LIFO, etc. This second post looks at simple production sequences where you do have to deal with limited production capacity. If you cannot make everything at once, you need a sequence in which you process the parts.

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Delivery Sequences: FIFO, LIFO, and Others

Sometimes, when you need a part or product from your inventory, you may have more than one item in stock. Which one do you pick? In this blog post I want to present a few strategies for choosing which item to take. The most famous one is FIFO, but there are more options available. In my next post I will present similar strategies if you need to start production before the item becomes available.

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Top Five Cases When NOT to Use a FiFo

FiFo LaneStandard wisdom for creating a good material flow is to use FiFo lanes (First in, First out). In other words, the first part that goes into the line should also be the first part that comes back out. As such, FiFo lanes and its big brother, Supermarket, are essential for any lean material flow. However, some rules of wisdom can be bent and others can be broken. Here are the  top five cases when NOT to use a FiFo lane.

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The FiFo Calculator – Determining the Size of your Buffers

FiFo LaneIn my previous post, I discussed how to Determine the Size of Your FiFo Lane – The FiFo Formula. My preferred method is still an expert estimate. However, if you are interested in the math, here is a small JavaScript calculator that estimates a FiFo size for two processes.

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Determining the Size of Your FiFo Lane – The FiFo Formula

FiFo Lanes
How long should it be?

FiFo lanes are an important tool to establish a pull system. They are often combined with kanban. However, while there is a lot of information on how to calculate the number of kanban (the Kanban Formula), there is very little information available on how large a FiFo should be. In my last post I talked about why we need FiFo lanes. In this post I want to discuss how large a FiFo should be. 

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Theory and Practice on FiFo Lanes – How Does FiFo Work in Lean Manufacturing?

FiFo LaneFiFo lanes are an important part of any lean material flow. They are a very simple way to define both the material flow and the information flow. In this post I want to tell you why to use FiFo, how to use FiFo, and the advantages of FiFo, as well as show you a few examples of FiFo lanes.

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