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Calculating minimum manning levels

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  • #38308

    Mike Barker
    Participant

    Can anyone provide me with a step by step approach to calculating the manning levels I need after I have calculated the TAKT Time.
    My scribbled notes suggest that I divide a ‘Weighted Time’ by my TAKT Time …… what is the weighted time?

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    #114499

    Scott C.
    Member

    Mike,
    The number of people to man a certain process step or work cell (however your area is setup) is the cycle time of that process step or work cell divided by your takt time.  I believe that your cycle time needs to also include your setup time but don’t quote me on that.
    Scott C.

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    #114503

    Anonymous
    Participant

    Check out this web site: http://www.advancedmanufacturing.com/January01/flow.htm
    This has a good description of the value stream mapping process.  About 4 paragraphs from the bottom, there is this description:
    • Resource calculation: Number of people, workstations, and machines required to support the line’s capacity. Calculated by dividing the standard time (weighted average) by takt time
    With “average” being the key word.  Hope this helps.

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    #114528

    jediblackbelt
    Participant

    Take the total time to create your part.  Say you have a part that takes 4 operations in a cell to build and you have a takt time of 1minute.
    If the cycle time of A=1.0, B=2.0, C=.5, & D=.5 then your total amount of labor to build is 4.0 minutes.  Take the 4.0 / 1.0 and you get total number of operators = 4. 
    Make sure though if you put your allowances into your takt time for breaks/lunches then your total time is free from any allowances. 
     

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