OEE calculation

http://www.oee.com/tools

Zippy,Thank you. I thought it was up to my usual high standards as well.The statement ” i dont have any known cycle time for equip B and it is
tedious to manually track the cycle time” doesn’t deserve anything
other than a response like mine. Let’s see – stop watch, 10 -15
minutes tops and I know the cycle time. That’s oh so tedious. Boo hoo, this SSBB stuff takes so much work.

zippo,
You need to get together with Kev and the two of you go off to some corner and spend a couple hours complaining to each other how the world, Stan, etc are so much less enlightened than you two and how much better we would all be if we were just like you.
The original post goes back to the latest string on TQM. Pointless pontification – that has been qualities curse for at least the last 25 years. That is why the quality departments are generally ignored.
If you like the original post, the three of you can go find a corner.
Just my opinion

“wirth a dollar”??? What part of the cuntry are you from Bubba??

Why does it always have to be Bubba? Why can’t it be Oscar or
Hethro?HF Chris Vallee

Correction… add known value of A to “UNKNOWN” value of B and get what?

“add known value of A to “UNKNOWN” value of B and get what?”….Ummmmm the first part of a 9th grade algebra word problem?????
:-)

He’s just pointing out how dumb Robert’s, oh I mean Zippy’s, answer
is.

Bubba:  barefoot, unrefined, beer belly, a$$hole.  Seems to fit far as I can tell.

Hey, don’t besmirch Zippy the Pinhead by equating him with this zippy.

Could not tell you at this point to or not to look at this level because
no one has given enough facts to tell me what is happening. Leaving
the data blank and not understanding data does not mean there is or
is not a problem.The original question was about OEE. If I find a problem, I would go
to the intermediate steps and find the root causes and fix the problem
to reduce the variability.

MBBinWI, reread my post about Bubba. I crack myself up.

Same part as the 3 stooges, Stan, Darth and MBBinWI

well that pretty much says it all.  Now I understand the stupidity and sarcasm in all of the answers and lack of constructive advice

The good news is that while he is being Zippy he can’t also be Kev.

please reread the response.  I did not tell him to ignore process B but to see which one was the constraint.  If process A and B are tied directly together and process B is only used with Process A and if process A was the gating operation then process B could be ignored.  However if process B is the gating operation then it would need to be time studied.

OK let me see if I can explain this in another way.  Each machine is dependent on the other.  If 1 goes down the other does not run.  No where in his post does he say that one or the other is a constraint so we have to assume that the cycle times are equal.  If we look at what goes into an OEE calculation we have several parts.
1. Base hours.  This would be the same for both machines.  You need to look at these machines as if they were a 2 step die or transfer station where 1 feeds the other.  Now if A is run on multiple shifts and B is not then you need B’s cycle time otherwise it’s not needed
2. Availability.  This may differ slightly depending on the setup time, maintenence required.  These would be the main major differences between the 2 machines and times should be easy to obtain for each
3. Performance.  If we assume that B can keep up with A then we just need the cycle time for A.  If not and we see parts piling up in front of B then we need the cycle time for B.
Quality Should be easy to get what is the volume of rejects off each?

it most certainly does.  If you read his post if B breaks down A stops.  We had a very similar setup where we tied 3 machines together connected by conveyor.  All 3 cycle times were paced by the first machine.  However if 1 anyone broke down it directly affected the others

Lim BT,I do not facilitate six sigma projects anymore but spend my days
teaching root cause analysis and facilitating investigations from
fatalities to parts failure. The decision is yours but I personally would not skip measuring
process B. See my responses below. The minute you assume.. well
you know the answer to that.Respectfully,HF Chris Valleefeel free to look up my posts in the past to see that I don’t attempt
to mislead anyone and give decent advice. I also ask when I am
over my head.

Just Assume!

…more Kremlins! People scared to post their real name.

Hey, I say it about in public as well. Was thinking about getting a
billboard on I-75 in Cincy with what I think on it as well.

In the background to a good FA guy? Sure – there aren’t that many.

Dr. Darth von Trapp,
You have obviously made your trip and are suffering from a lack of oxygen.
Regards

Darth,
I knew it had to be something significant to get you so delusional that you thought you would beat out Stan and me for the award.
A year a go it was an 11 day trip, 30,000 miles, 4 continents, 5 countries and my luggage disappeaered on day one in Rome and showed up in San Antonio the day after I got back and the suitcase was full of water. After a year still haven’t had a phone call back from Thai Air about the clothes that were destroyed. Great customer focus. Quite the sexy lifestyle. Still not willing to give it up.
Regards

He isn’t in either of them.

Is that how you solve all problems presented to you? Take what you’re given, make assumptions about the rest, and voila – best solution achieved?

So we have two different machines and we would lower the
effectiveness of one based on the other being a piece of junk? It is
not narrow mindedness, it is understanding the business.Which machine costs the most? Which machine breaks down the
most? Which machine takes more downtime to repair? Which
machine can produce more and is held back by the other? … oh it
doesn’t matter when we can not aggregate the data, right? All rational is based on logic… just some logic needs a little help
and you do it with facts not assumptions.

Last response and then it is no use to continue.You have a car I hope. There are different major components on
the car that are joined together. The car is used to get from point
a to b. Sound familiar? Now do you change and inspect all the components at the same
interval.. no. Why ? Because they all have their own OEE and should be treated as
such. My transmission is available regardless if the motor craps
out. So if you ignore what is happening in process B and you do not
know the efficiency of process B because it is too tedious you can’t
even track the efficiency of A + B because you chose to ignore it. So the next time you car needs a tune-up make sure you replace
all the parts too because it is one machine and should be treated
as such according to your logic.

What a ridiculous statement, Zippo…If you can’t “find” data, it’s because you are being lazy. If a measurement, or dp isn’t existant, than what do you do? YOU INSTITUTE A MEANINGFUL METRIC.Use some rigor for Pete’s sake, Zippy-dippy…

Zippy, Zippy, Zippy
Oh my, you are a hopeless cause. You really have no idea the purpose of OEE do you.
Accounting for downtime and assigning cause regardless of the system dependancy is the purpose. Each unit has its own OEE and assignable downtime to which project Y’s can be born.
It is also apparent that you have little understanding of lean concepts for  packaging equipment.
How about next time you have a thought, keep it to yourself.

Ok, lets try this for insightful. Information below is straight from the OEE web site, with my comments added
OEE is a “best practices” way to monitor and improve the efficiency of your manufacturing processes (i.e. machines, manufacturing cells, assembly lines).  So would you consider assembly lines, “attached at the hip” process.
Availability takes into account Down Time Loss, which includes any Events that stop planned production for an appreciable length of time (usually several minutes – long enough to log as a trackable Event). Examples include equipment failures, material shortages, and changeover time. Changeover time is included in OEE analysis, since it is a form of down time. While it may not be possible to eliminate changeover time, in most cases it can be reduced. The remaining available time is called Operating Time. ANY EVENTS, MATERIAL SHORTAGES, any of this starting to sink in? OEE is only as effective as the down time codes you assign the equipment. In the original post, he said that the machine B was dependent on Machine A feeding it. This may or may not be true, If machine A was running at optimum rate could machine B keep up, or is machine B the deciding cycle time, if it is then the availability of A is directly affected by B. These are very complex problems and require a lot of time to understand the interactions between A and B. For example, How many stops a day does Machine A have that do not affect Machine B, Operator ineffeciency etc. Machine A may have 25 different possible down time codes, and Machine B may only have 5 of but both affect the other.
If have seen many guys like you come and go and I’m sure its just a matter of time before you get your feelings hurt and run on down the road. It amazes that you have 5+ very experienced people in the field of manufacturing all telling you that you are blatenly wrong, yet you continue with the banter and up-staging.
When you say: “When you been around as long as I have”, does that mean you are one of those guys that just refuses any change and anything other than the way you have done in the past is wrong?