VSM (Value Stream Map) Issue

8balluk

Starting to get Involved
hi All,

wondering if anyone can advise me on a VSM that I'm compiling.

I'm in an environment where there are multiple ingredients, that are then mixed together to make a bulk and this then gets dispensed into bottles upwards of 9000 units.

ive got run times for each process but am unsure on a couple of things.

Firstly, my value and non value added time line. do I need to convert the run times to a time per part/component?

I ll ask other question on the responses I get. Thanks in advance
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PaulJSmith

In my experience, time per part/component is the best approach. You'll also need to have the same unit of measure for each line for it to make any sense.

There is more than one way to approach a VSM. As I said, though, I had the best experience with the single unit method; how long does it take for that unit (a bottle, in your case) to be completed from start to finish.
 

8balluk

Starting to get Involved
In my experience, time per part/component is the best approach. You'll also need to have the same unit of measure for each line for it to make any sense.

There is more than one way to approach a VSM. As I said, though, I had the best experience with the single unit method; how long does it take for that unit (a bottle, in your case) to be completed from start to finish.

Thanks for the reply.

Single piece is all I've known but I've gone to a new environment where they (to be specific) have around 50 ingredients , that gets put In a mixing vessel and then onto production line.

So when stores collect the 50 ingredients to I take that whole time or divide by 50?

For the mixing vessel it then turns into 1 unit as there all mixed together.

This one unit then gets divided into 20000 units.

You see my issue?
 

Bev D

Heretical Statistician
Leader
Super Moderator
I have similar type operations where large batches of liquids come together into individual devices and bottles. the devices and bottles are packaged together and sold as a 'kit'.
because the unit of measure change, I leverage the fact that what is sold (what goes into finished goods) is a 'lot' of these kits. I have to build a lot to get even one kit. so my times are all based on the sublots and final lot times. it's easier mathematically and more representative of the process times. plus my teams can understand it as that is how they think of the product.

Times don't have to be precise, they are needed to gain insight, identify constraints and opportunities and prioritize work. As such, they should be easy to calculate, understand and use. remember they are a means to an end and not the end itself.

how do you and your organization get value from these calculations? this will lead you to the correct answer for your application.
 

8balluk

Starting to get Involved
I have similar type operations where large batches of liquids come together into individual devices and bottles. the devices and bottles are packaged together and sold as a 'kit'.
because the unit of measure change, I leverage the fact that what is sold (what goes into finished goods) is a 'lot' of these kits. I have to build a lot to get even one kit. so my times are all based on the sublots and final lot times. it's easier mathematically and more representative of the process times. plus my teams can understand it as that is how they think of the product.

Times don't have to be precise, they are needed to gain insight, identify constraints and opportunities and prioritize work. As such, they should be easy to calculate, understand and use. remember they are a means to an end and not the end itself.

how do you and your organization get value from these calculations? this will lead you to the correct answer for your application.

Thanks for you reply but you've confused me more lol.

To go back to my environment if it takes 5 hours to collect the ingredients. 10 hours to mix the ingredients and 2 hours to pack into (10,000)bottles are you saying I shod divide all them times by the qty.
 
L

lokeky1

The idea here is to identify what is ONE unit. For the car industry, ONE unit is a SALEABLE CAR.

For your case, one unit is NOT one ingredient or one bottle. It is what your customer order. Your customer does not buy one bottle at a time. If your customer orders in pallets every time, then one unit is one pallet!

So based on your calculation on one pallet.

As for the bulk, ie when all the 50 ingredients are mixed together, what is the batch size? How many pallets of product are produced from this batch size Remember one pallet is one saleable unit.

Hope this is helps.
 
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