Manufacturing Process Effectivity

[Mechineer]

Do most companies have a minimum effectivity for manufacturing processes and what is the expected effectiveness?

 

[shayne31]

What are you evaluating, total asset utilization (total machine availability minus planned / unplanned downtime) or available up-time (machine readiness from maintenance stand-point)? Most companies have mutually exclusive goals in both areas, although available up-time can dictate and infringe upon the total asset utilization.

 

[bill1898]

Hi,
I am a little late getting to this, but I will give you some input from my standpoint anyhow, and hope it may be useful to you. Effectiveness of a process is the product of efficiency and utilization. Determination of what is the optimum for each element varies from process to process and from one organization to another. If humans are involved in the process at any point their effectiveness should be addressed as a separate issue from the effectiveness of the equipment being used. If your organization has been in business for a long time and completing processes with a lot of human involvement, then the overall effectiveness has been determined by the many people involved in the activities over time. You can determine what this overall effectiveness is by counting the number of completed units in a certain time period and measure it against a consistent standard or norm. This standard may be simply maximum machine or process output as an example. Using that criteria it will probably be between 50% and 60%. I hasten to add that my background has been in metalcutting and physical component assembly and my obsevations may not be applicable to other processing industries. This may not be as detailed an explanation as you would like to see, but if you indicate what kind of business you are in I might be able to give you more help.