Posts Tagged ‘data collection’

Visibility in Manufacturing

Manufacturing Leaders are asked to meet strategic goals set by corporate leaders. These goals are often stated in financial terms concerning cost control and margin increase. To accomplish this, Manufacturing Leaders initiate numerous programs to keep the cost of goods under control and improve production efficiency. Often times their methods involve gathering production data from the plant floor and manually inputting the data into an Enterprise Resource Planning (ERP) system or Excel spreadsheets. Manufacturing Leaders keep track of factors such as total downtime, downtime reasons, setup time, run speeds, and Overall Equipment Effectiveness (OEE), among others. This data is then used to determine where to invest continuous improvement dollars.

And you know what. It works…well, kind of.

Manufacturing Leaders are finding that they cannot get the anticipated return on their continuous improvement investment since some programs work, while others miss the mark altogether. It is a drunken walk. You may get where you want to go, but it takes a very long time and you fall down more than once. Often times you never make it. Unfortunately, this means that the task is then left to a new Manufacturing Leader. What is needed is a way to get to where you need to be as quickly and efficiently as possible.

To analyze where the problem is, we need to step back to the driving strategy. To improve their competitive position, corporate leaders often define strategic goals such as improving return on capital deployed or improving margins. A positive change in these types of financial measures often indicates that a company is managing its business well. If margins continually rise then profits go up, stock prices rise, and shareholder wealth is created.

Once the corporate strategy is in place, it becomes the Manufacturing Leader’s responsibility to manage their performance in a manner that results in meeting the strategic goal. For example, if the goal is to increase margins, the Manufacturing Leader will look at ways to keep costs per unit under control and decrease them over time. This can be done by reducing the costs of raw materials, labour and energy. This brings us back to our previous discussion: Manufacturing Leaders need to look for the right places to invest their continuous improvement dollars, in order to achieve these strategic goals.

Leaders need to take effective action. Unfortunately, it is not completely clear what that effective action is. Their recourse is to fall back to rules of thumb or groping around in the dark. It becomes ‘hit’ or ‘miss’. The hope is to ‘hit’ more often than not; there has to be a better way.

In talking with manufacturers and looking at leading industry research, the inability to make the best investment decisions comes from a lack of visibility to the plant floor. Manufacturing Leaders understand the strategic goal but cannot see into the plant floor to take effective action. The plant is a ‘black box’, raw material, energy and labour go in, finished goods and scrap come out.

Collecting data manually and inputting it into ERP systems, Business Intelligence (BI) tools or spreadsheets is one attempt at seeing into the ‘black box’. Unfortunately the data results are is Aggregated, Inaccurate and Lagging; we call it “AILing,” as in “to cause pain”, “uneasiness”, or “feeling unwell.”

Aggregated data is a problem because the Manufacturing Leader cannot view details of what is actually happening. For example, the Manufacturing Leader may know exactly how much product his plants are producing and exactly how much money, in terms of raw material, labour, and energy, is being used, but that is all he knows. He cannot break it down any further, or determine the contribution to unit costs by shift, asset, product or operator. Manufacturing Leaders have the data but they lack the visibility to determine what the corrective course of action is to impact their key metrics.

Inaccurate data is a direct result of the data gathering process. Manually collected data cannot possibly be correct. Besides the normal input errors, manually collected data suffers from an immediacy problem, since when an operator is asked to log reasons for downtime and the time taken to resolve them; the data is often entered in at the end of the shift. This is due to the immediate problem of having a stopped machine super ceding the need to collect data accurately. The operator, rightly, needs to get the machine up and running as quickly as possible – accurate data be damned. The end result is that continuous improvement programs are using inaccurate data to determine where to invest in order to meet strategic objectives. Unfortunately, inaccurate data means investment decisions in the wrong programs, causing the return on the manufacturer’s investment to suffer. We call this chasing Continuous Improvement Ghosts.

Lagging data is money poured down the drain. Even if the data is accurate, by the time the Manufacturing Leader sees the data, it is too late to do anything about the problem. The money has been lost, swept away at the end of the day. What is needed is a way to get the right data into the hands of Manufacturing Leaders and their staff in real-time, to correct a problem as it is happening. If you are waiting for the end of the shift, the end of the day, the end of the week or heaven forbid, the end of the month; it is too late. The money is lost.

In order to meet the financial strategic goals established by the corporation, Manufacturing Leaders need the right visibility to determine what the effective action needs to be. The key to this, is having visibility directly into the plant through accurate, real-time, high resolution information. Manufacturing Leaders need to see into the ‘black box,’ that is their plants, and shine a light directly on the problem areas to eliminate them.

George Dalle Ave

George Dalle Ave is the Director of Solutions Development at Shoplogix Inc.

LinkedInLinkedInVideos@ShoplogixShoplogix Inc.

Machine Truth in Context

In a previous article, we discussed what Machine TruthTM is and its importance. Gathering this data automatically is undoubtedly important and a certain amount of work can be done with this data. But it is just machine data. The next step with Machine TruthTM data is to put this data in context by associating the data with additional non-machine data. The non-machine data to use is really dependent upon the business and strategic goals of the organization. A common set of non-machine data to use includes the customer for whom the job is running, the operator running the machine, and the suppliers of materials. Another important item is the production standards used by the organization.

Why is non-machine data important? Consider a purchasing agent that secures a better price for the paper used in the process. By every measure used by this organization, the purchaser has done a good job in saving the company money. However, at the shop floor, it is found that this paper curls a little bit more under the humidity conditions of the plant and leads to the machine jamming which in turn results in more downtime which leads to lower production and increased costs. By associating Machine TruthTM data with supplier information, the loop between purchasing and production can be closed. This data can give the purchaser the ammunition they will need to go back to the supplier to ask for improvements or to change suppliers all together.

Associating the Machine TruthTM data with the labour used to produce the product is important on several accounts. First it provides us with the production per labour hour metric. It may not always be advantageous to increase production by increasing the labour as the increase in costs will eat into the margin. Secondly, associating production with the labour allows the organization to determine which operators are struggling and in which areas in order to allow the organization to target the appropriate training programs to bring all their operators to the required level.

Finally, let’s consider the association of Machine TruthTM­ data with organizational standards. Among other things, these standards describe how long it should take to set up a machine, the expected run speed, the expected labour hours, and the expected production.

Consider the following diagram. With conventional metrics of uptime and production, Operator B would be considered as having the better day. However, the success of Operator B’s day should really be measured against how well he performed against the standards developed by the organization. If the standards indicate that this operator should have had 70% uptime and produced 700 cases, then he did not have a good day.

Conversely, Operator A had less uptime and produced fewer cases but had to endure more changeovers. If this Operator performed better against the standards provided then he would have had the better day.

The important take away is that Machine TruthTM data by itself may be useful it can only take you so far. It is necessary to put this data into context in order to get the full impact of what this data is telling you.


Shopfloor Automation in the Multiwall Industry – PSSMA Conference

I had the honour of being invited to speak at the PSSMA (The Paper Shipping Sack Manufacturers Association) meeting in Nashville this month. Dick Storat and Roger Boos put on a great event, especially given the difficult times that Nashville endured with the high water levels. The Cumberland River, which flows through Nashville, apparently rose an amazing 61 feet – that’s about five stories. Flying into Nashville, it broke my heart seeing only roof tops in the middle of the spreading river. Parts of downtown Nashville were without power and flooded, including the Ryman Theatre. Despite this hardship, the people of Nashville welcomed us and put up a brave face. And the music was as good as I imagined it would be. The people of Nashville are extraordinary.

Shopfloor AutomationAt the conference itself, it was a full house with companies from the Multiwall bag industry and their suppliers attending. We met terrific people at the highest levels of these companies that were honest, forthcoming and wonderfully candid. We learned a lot in just talking to them and hopefully they picked up one or two things from us.

Dick put together a fantastic line up of presenters. Dick himself provided great presentations on the US Economic Conditions and also delivered an update on the Multiwall Industry. Like all industries, the Multiwall Industry has had its challenges but appears to have turned the corner and is poised for further improvement. Bob Cantu gave an eye opening presentation on how to achieve an AIB Superior rating, while Sam Sirois of Circadian Technologies taught us about managing fatigue in shift operations. I finally understand why an espresso is important to me at 11:00 AM and why I am dead tired at 10:30 PM while being wide awake at 11:00 PM. Who knew?

As for me, I presented our view of Shopfloor Automation and Rapid Time to Value in our presentation, “Bringing Machine Truth to the Organization”. While at the conference, we talked with Greif, a long standing member, who again reiterated reaching that “ah-ha moment” after automating their data collection procedures in their Omaha Nebraska plant ultimately eliminating 112 hours of downtime per month.

In the upcoming articles I’ll work through some of the key themes of my Shopfloor Automation presentation. I am looking forward to establishing an ongoing dialog.

If you are contemplating joining the PSSMA but are not sure, take my advice and just do it. Dick and Roger put on a great show and you will meet terrific people who have deep knowledge of the industry. The PSSMA is definitely working toward making the entire industry better.

And please make your way to Nashville to enjoy the great music and the great barbecue. It is an amazing city with great people that deserves our support.


Use Lean Thinking to Remove Inefficiency in your Blending Operation

How do you track the utilization of your blending tanks?

In most cases you probably don’t track product utilization – or you rely on the operator to manually record product run times and quantities. In fact, most companies have no idea how many gallons of product are flushed down the drain during a changeover. What you do know is that there is a tremendous amount of unaccounted for product at the end of the week / month / quarter etc.

Understanding the real flow of product into and out of tanks and the amount of product consumed during a changeover has been eye opening for one customer in the contract packaging space.

Most contract packagers bring product in bulk which is stored on site in tanks. This is then blended to a recipe and pumped to the packaging lines. The amount of product is estimated based on the order size and expected losses. These losses include over runs and rework – but most losses can be attributed to the large amount of material remaining in the piping after a job is complete.

A manufacturing performance management system – Plantnode, was installed to track the tank utilization and accurately report product consumption, additive addition, blending, filling, draining, along with process related downtime. All of these measurements are used to report efficiencies and point out losses related to different jobs.

With their data collection now completely automated, this customer is setting aggressive new efficiency benchmarks in their operations. Blend tanks are now measured for efficiencies and there is no longer any finger pointing at the end of the month when it’s time to account for the delta between product in and product out. Real standards are being developed with real data and jobs/batches are looked at in a different light to determine if they actually make money.

By the way this blend tank is pushing 20 years old and the only way to connect to it is via a serial cable to the weight scale. There is no PLC or automation. Aside from the weight scale the tank controls are all manual and pneumatic.


 

Recent Posts

Contact Us

Shoplogix Inc. 2626 Argentia Rd. Mississauga, Ontario Canada L5N 5N2 Tel: 905.469.9994 T/F: 877.469.9994 Fax: 905.469.9970 info@shoplogix.com

About Us

Shoplogix is the leading developer of manufacturing performance management solutions designed to enable manufacturers to reduce operating costs, increase manufacturing profitability and drive rapid time to value.

Our patented Plantnode® solution is the market’s only
integrated technology solution, combining the power of
software analytics with the strength and stability of
embedded technology.

Seeing our customers uncover their hidden potential to
realize dramatic performance improvements inspires us to continue to innovate in order to help them to further escalatetheir success.

Shoplogix was founded in 2002, and is headquartered in
Mississauga, Ontario Canada.