The 3 Levels of OEE Wisdom

Overall Equipment Effectiveness (OEE) is often misunderstood and miss-used to a fault.  “For the past five years, manufacturing plant managers and supervisors have adopted lean manufacturing principles, eliminated waste, and have still seen total production efficiency elude them. Monitoring and OEE solutions in the shop have extracted very little value because most ‘OEE monitoring’ technology uses tools that generate data, but unfortunately, none of them help us make sense of it.”[1]

The Top Shop performers have connected all the dots in a fundamental way by providing key information in terms of profit dollars, which changes existing paradigms of “current” state manufacturing, into real value “future” state manufacturing. They have advanced OEE understanding and have applied improvement projects strategically, optimizing the use of discretionary resources (people, time, and money). Everyone is “on the same page” of promoting organization success.

Yet, some manufacturers and part makers make the jump from “Good to Great” and become the Top 10% in their respective areas and demonstrate accomplishments significantly higher and more profitable than the “rest of the crowd”.[2]  (Note that the “Top Shops” reported the same number of machines, people and pay, as the “Other” Group.  Therefore, one can conclude that Top Shop capability already exists inside your current assets.)

Advanced OEE understanding can be envisioned as 3 levels:

  • Level 1: Mastering Individual Work Station OEE understanding – identifying Gap to World Class.
  • Level 2: Mastering Flow-line OEE performance by product – integrating the results relative to your product mix and applying the Theory of Constraints to prioritize the use of resources.
  • Level 3: Linking the Line of Business (LOB) financial information by product into the Flow-line diagrams and validating current state results – the resulting Financial OEE model becomes a ‘Crystal Ball’ to guide the profitable transition of “Other” performance into “Top Shop” performance.  Level 3 synergizes the physical side and business side of OEE.

Level 1 – The introduction of basic OEE at the individual work station.  This includes product run data collection, loss analysis, and improvement using work station resources.  At this level, production effectiveness is focused on the physics of improving throughput at the work station.  Effectiveness gain opens up time for more learning, establishing ‘One Best Way’ and a reliability/quality focus in the work station.

Level 2 – The application of OEE value stream mapping of product Flow-lines using actual OEE product data generated from the Current state results and actual product mix.  A validated Flow-line analysis would reflect “how the shared work stations were used” to generate the product volumes and waste amounts for the time period investigated.  Correctly combining the work station usage for the spectrum of LOB product volumes produced automatically identifies the Overall Constraint as well as the next constraint(s), etc.  (Note that the Flow-line OEE is the OEE of the constraint minus all downstream quality losses).  At this level, application of the Theory Of Constraints is used to begin managing the Flow-line bottlenecks.  This is like tuning up the manufacturing engine where each work station represents an individual cylinder that needs to be harmonized with the rest in order to get the best effectiveness out of the production engine.

Level 3 – The Financial OEE which links actual product financial information into the Flow-line diagrams, and validating the overall results with the LOB actual results, for expenses and profits.  Upon completion, the actual “contribution by constraint hour” can be computed to assist the entire organization with better business decisions for product mix.[3]  More importantly, the LOB Financial OEE Model can be used to investigate the “bottom line” impact for any change to an input parameter.  This is a powerful Intelligence tool for the Leadership Team to use to prioritize improvement alternatives in terms of actual profit dollars.  By having the total organization “on the same page” and understanding exactly when, where, why and what to apply to key resources, it not only moves the organization toward Top Shop performance quickly, but it also gives the road map of profit dollars along the way.  Being able to leverage the “Hidden Factory” completely gives the Top Shops a competitive advantage as demonstrated in their survey results.  Their results showed a 16% more profit per machine and double the business growth rate while supplying customers with lower prices and faster delivery.[2]

Are you interested in learning more about all three levels of OEE Wisdom?  Narrated Financial OEE training modules and consulting services are available at www.OEE-College.com.

– Robert Hansen

Author OEE: A Powerful Production/Maintenance Tool for Increased Profits

R.C. Hansen Consulting, LLC.

www.OEE-College.com


[1] Cutler, Thomas. “Listen to the Machine.” Business Excellence Magazine (2013).  Web. <http://www.bus-ex.com>

[2] “Top Shops – Benchmarking Your Machining Business.” Modern Machine Shop (2013).  Web. <http://www.mmsonline.com>

[3] Hansen, Robert. “20% More Profit – For Free.” Web log post. Memex Automation. 25 Apr. 2013. Web. <www.memex.ca>.

MEMEX - Machine Monitoring

To Measure Is To Know – MTConnect book

The world’s first book on MTConnect, an open and royalty-free interoperability standard and the application of open systems in manufacturing has been released and it is titled,  MTConnectTo Measure Is To Know”.  Written by Dave Edstrom, CEO/CTO of MTConnect, the book discusses the many lessons learned in the world of open systems and the value this means to the manufacturing industry.

Dave Edstrom has spent over 35 years in the computer industry.  He helps the reader understand that MTConnect is not just an evolution in manufacturing, but that it is a revolution, a true game changer.  “MTConnect will be more important in the 21st century for manufacturing than CNC was for manufacturing in the 20th century” said John Byrd, former president of Association Manufacturing Technology, www.amtonline.org   (MTConnect: To Measure Is To Know. Ashburn: Virtual Photons Electrons, 2013. pg xiii).  MTConnect is making the dreams and desires of generations of manufactures possible.  Machine tool builders and manufacturing equipment providers alike all want to see the same goal of different devices having a common connection on the plant floor.  With MTConnect, anything is possible.

A few excerpts from the book:

“Only one to two percent of all shops monitor their shop floor.  The ability to know what is happening on your shop or plant floor anywhere, at anytime, is vital to the manufacturing process.  As a comparison, the next time you go in for a surgery, tell the surgeon that you want to save money and not monitor any of your vital signs.  Drop me a note and tell me what the surgeon tells you.  Then why is it that 98% to 99% of all shops don’t bother monitoring their shop floor?

Think of MTConnect as the Bluetooth of manufacturing that makes it easy to get information off your manufacturing equipment.  MTConnect is not an application, but it makes it very easy for applications to read data in a common and universal format.

Different Devices, Common Connection.
(MTConnect: To Measure Is To Know. Ashburn: Virtual Photons Electrons, 2013. pg xii).

“The process of standardization is always a political struggle with winners and losers.  The primary winners will be those companies that understand it is co-opetition (competition and cooperation) that drives thriving markets.  The primary losers will be those companies holding on to proprietary solutions at all costs.  With a standard screw, you could now have standard tools, standard assembly lines, and the growth of mass production.”
(MTConnect: To Measure Is To Know. Ashburn: Virtual Photons Electrons, 2013. pg 3.)

“If we look at the manufacturing companies that are embracing open thinking and open collaboration, these companies report secondary benefits in morale as their employees typically tell their management that they have a much higher job satisfaction.”
(MTConnect: To Measure Is To Know. Ashburn: Virtual Photons Electrons, 2013. pg 22).

Memex is mentioned in the acknowledgements

“Huge thanks to Dave McPhail, president of Memex Automation.  Dave is a great guy, and so is his business partner, John Rattray, who is the vice president of sales and marketing, as well as the whole Memex Automation team.  Thanks as well to Bob Hansen of R.C. Hansen Consulting for his help at [MC]2 2013 and educating me on OEE”
(Dave Edstrom, MTConnect: To Measure Is To Know. Ashburn: Virtual Photons Electrons, 2013. pg 209).

There is a paperback version that is available at Amazon.

2013 – Adapt or Die

Information presented at the MTConnect 2012 conference in Cincinnati, OH. clearly emphasized that the Manufacturing world is going to change extremely fast in the next few years.

Many examples of “How and Why a Royalty-free and Open-Source Standard is Revolutionizing the Business and Technology of Manufacturing” are provided in the book written by Dave Edstrom, President of MTConnect, To Measure Is to Know.  The main point of the book is that the new manufacturing equipment will have a common “Bluetooth type data” speak-ability to interface with software monitoring, your enterprise resource planning (ERP), and any other software, including your financial software.

This common speak-ability will allow for the capturing and linking of detailed real-time performance monitoring of shop floor actions, with planned road maps executing customer work orders for real-time proactive intervention, and, more importantly, historical information to analyze for strategic competitive advantage and continuous improvement.

Stop and read the above paragraph again.  Think of what “accurate real-time shop floor critical information” would mean in your current work environment.  You could make better decisions throughout your daily manufacturing processes, regarding order tracking, quality, rework, overall scheduling optimization, customer delivery, and most importantly, the impact on profit.  Detailed historical data could dramatically improve job estimates, material usage, updated work order planning values by individual work station, and optimizing product mix decisions using “Contribution by Constraint hour” information.[1]  Guidelines would be implemented for the sequence of handling unplanned events and would be made visible from the shop floor to the top floor, enabling all levels of the organization to automatically take immediate corrective action.

Now you might say “that is great for those manufacturers getting new equipment, but we aren’t in that group.”  This is where the “Adapt or Die” situation becomes visible.  You can either choose the current criteria that is on the market and remain “blinded” because you don’t have the new manufacturing equipment listed above (and in turn, you can get eaten up by the competition with the new equipment).  Or you can launch your own new real-time information revolution on your already existing equipment.

So how can this be done?  How can you launch a revolution on your existing equipment?  Your organization must first be able to recognize that the compatible MTConnect hardware/software information capability is already available for ALL Legacy machines.  Providers such as the Memex MERLIN system and the advanced Financial OEE value stream analysis can be applied specific to your site using your current Line of Business product portfolio.[2]

But what evidence exists except for this Blog?  A brief review of Modern Machine Shops “2012 Top Shop” survey indicates that of the 350 completed surveys, the top 12% show that the average Top Shop versus the average of the “Other” shops are 70% more likely to do Continuous Improvement, 75% more likely to do Value Stream Analysis, 150% more likely to do Theory of Constraints and have 12% higher OEE. (These results are all from data driven activities).  Over half of the completed surveys indicated that they were Job Shop environments.  Top Shops show that the days between order placed and product delivery is 39% less, and the Top Shop customer growth rate is double that of the “Other” shops.

Overall, the “Adapt or Die” scenario is about launching a new information revolution on the already existing equipment, focusing on speed and proficiency.  The real question is “how fast can we implement real-time data collection and incorporate the education to leverage the new information revolution?”  If you are not in front of the competition, you are behind it, and chances are that you will experience several set backs along the way.

– Robert Hansen

Author OEE: A Powerful Production/Maintenance Tool for Increased Profits

R.C. Hansen Consulting, LLC.

www.OEE-College.com


[1] 20% More Profit for Free – Last weeks Memex blog

[2] www.OEE-College.com

20% More Profit – For Free

The Modern Machine Shop magazine’s 2012 “Top Shop” survey results indicated that the median point of “other” machine shops (approximately the bottom 90% of shops sending in >350 surveys) was at a financial performance level seventy six percent below the TS median point for profit per machine.  Couple this with the information that TS are 150% more likely to apply Theory Of Constraints TOC methodology in their business/operating decisions and that TS are data driven.   Why is this an advantage?

One big reason for the TS competitive advantage could be in the data collection and analysis of true OEE by product at each machine in their product flow-lines.  This provides the actual throughput minutes per machine by product and allows an analysis similar to the “Bob’s Bolt Company” (pgs. 250 -260 of “The Constraints Management Handbook” by Cox and Spencer, St. Lucie Press/APICS series, Boca Raton, FL.) The example provides the necessary financial and operating information and examines a Line of Business with 4 products being produced by a series of 3 work stations. (A matrix of 12 ‘throughput minutes required by work station’ data points.)

It goes through the details of determining the best weekly product mix selection based on Market Demand using 1.) Traditional Cost Accounting using Product Profit, 2.) Traditional Cost Accounting using Contribution per Direct Labor Hour, and 3.) Theory Of Constraints and Exploiting the Systems Constraint(s).  The example results were $1508 profit for both methods 1 and 2, however method 3 resulted in $2265 profit, a 50% increase in profits and a different product mix selection!  Perhaps the data points were biased to favor the theme of the book?

To determine the strength of using the TOC approach, the author of this article took the 12 input data points and randomly applied them to the four product flow-lines 25 times and repeated the analysis of the three approaches for each new configuration.  The results were quite enlightening.

In every case, the TOC approach results either equaled the better of the other 2 approaches or exceeded both approaches (12 out of 25 times).  And the average profit using the TOC approach was twenty percent higher for the 25 investigations.

Perhaps you are not doing shop floor auto-data collection and using TOC as an advantage which means you are probably miss-using your existing assets (people, machines, materials) and unknowingly selecting the wrong weekly product mix?

 – Robert Hansen

Author OEE: A Powerful Production/Maintenance Tool for Increased Profits

R.C. Hansen Consulting, LLC.

www.OEE-College.com

 

Top 5 Reasons to use Memex MERLIN MES for OEE & DNC

Serial communications is old outdated technology.  It has slow transfer speeds, it is slow to load today’s big programs into controls, and it is especially unreliable on long distance runs.  MERLIN is built on today’s modern, reliable IT Ethernet network structure.

To help deliver operational efficiency with production visibility to your manufacturing enterprise, here are the top 5 reasons to work with the award winning Memex MERLIN for OEE and DNC.

1)  Memex MERLIN is a true Manufacturing Execution System.

  • MERLIN MES is vertically and horizontally integrated across the enterprise.
    • Vertically integrated means that it executes ERP’s planned production schedule.  It takes all the work orders from your ERP system, mirrors them on a machine and manufacturing cell or assembly basis, and at completion (end of work order and end of shift) sends the ERP an upload of actual results on how production actually ran.  This enables a comparison to be made of how the production ran for an accurate time and cost picture.
    • Horizontally integrated means that the complete shop floor flow-line of production is viewed and communicated in real-time.  This enables situational analysis, bottleneck identification, and resources to be allocated (when and where they’re needed) in the shortest period of time –  all with historical, traceable reporting.
    • Integration means objective visibility about utilization.  True OEE metrics, product run and cost standards, and the requirements of the operator for resources (engineering, maintenance, crane, dunnage, 1st off quality check, etc.) can all be communicated to all stakeholders in real-time.

2)  MERLIN is an independent and unobtrusive monitoring solution.

  • Software protocols and hardware network connectivity (if required) that are electrically (optically) isolated from the control.
  • MERLIN does not affect the machine’s performance.  It does not use programs or memory, it simply listens to the machine.

3)  Memex MERLIN system can operate independent of any DNC solution.

  • Any existing DNC solutions in your site can still be used in conjunction with MERLIN
  • Or, if you  prefer, you can use MERLIN’s built in DNC.

4)  MERLIN is built on the latest & proven technology of the Microsoft platform.

  • MERLIN incorporates MTConnect, OPC, Focas and other advanced protocols for machine communication.
  • It is built on reliable Ethernet network (wired or wireless) rather than the older, slower, and unreliable serial based communication technology.

5)  Memex MERLIN system really is the BEST VALUE solution.

  • MERLIN has delivered our customers 10% to 50% or more improvement in efficiency, all thanks to its horizontal and vertical integration,
  • It adheres to ISA-95 standards of machine connectivity and fits with your IT network infrastructure.
  • It is a safe and proven technology that is being used globally.

To find out more about these 5 points, and even more reasons why Memex MERLIN is the best MES solution, contact Memex sales today at 866-573-3895 or via email to salesgroup@memex.ca

To learn more about Memex’s MERLIN, check out these short videos on topics covered in Memex’s OEE Solution Series webinars.