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Author Topic:   Extrusion Economics
Tom C
Moderator

Posts: 142
From:Wharton, NJ, USA
Registered: Jun 2001

posted January 09, 2003 11:14 AM     Click Here to See the Profile for Tom C   Click Here to Email Tom C     Edit/Delete Message   Reply w/Quote
I been involved in extrusion and extrusion technology for a while. What surprises me is that very few people running extruders care to optimize their process. Most other industries understand that if they can run a little faster, they can be more competitive. But this point seems mostly lost in extrusion.

For example if a 4 1/2" extruder is able to run only 10% faster, it could increase company profits by $500,000 in one year (assuming the orders are there). This is big money! Do the calculations yourself. However no one seems to care that much, or the technologies I have been involved in would be much more popular. Even when management is presented with these calculations, they don't take action!

Can anyone explain this phenomenon? Screw designers and manufactuers want to know.

Tom C

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Steve H
Moderator

Posts: 184
From:New Zealand
Registered: Jun 2001

posted January 09, 2003 11:48 PM     Click Here to See the Profile for Steve H   Click Here to Email Steve H     Edit/Delete Message   Reply w/Quote
G'day Tom

In my experiance, the higher up the ladder they climb- the more "numerically challenged" they become

Steve Hodgson

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Peter P
Senior Member

Posts: 55
From:Nottingham, Notts., U.K.
Registered: Jun 2001

posted January 10, 2003 05:15 AM     Click Here to See the Profile for Peter P   Click Here to Email Peter P     Edit/Delete Message   Reply w/Quote
Tom, Steve,

We have been battling this one for years. Back in 1996 we had a grant from the British Government to perform a case study to demonstrate that with screw optimisation we could improve the throughput of an extruder. Tom, forget 10%, we managed to get 22% improvement. (See Screw Optimisation.

This was on a film blowing line and the only complaint we received was that the cooling ring couldn't cope with the increased throughput. £17,000 and a new, more efficient cooling ring and everyone was happy. The increased profit paid for the air ring in no time.

This work was published as a Department of Trade and Industry (DTI) report and we stood back and waited for extrusion companies to beat down our door. Nobody came!

------------------
Peter P.
pepe@polytech.co.uk
www.polytechconsultants.com

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zabielski
Senior Member

Posts: 158
From:McHenry, IL USA
Registered: Nov 2002

posted January 10, 2003 06:30 AM     Click Here to See the Profile for zabielski   Click Here to Email zabielski     Edit/Delete Message   Reply w/Quote
It is a shame indeed that Managers are "dumb".

I'm not sure where their heads are anymore.

Such studies are valuable, and maybe some read them and took action - using other screw designers?

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Bob Cunningham
Senior Member

Posts: 42
From:Amesbury, Mass
Registered: Nov 2002

posted January 11, 2003 07:36 AM     Click Here to See the Profile for Bob Cunningham   Click Here to Email Bob Cunningham     Edit/Delete Message   Reply w/Quote
Like you said, in order for that profit increase to be realized, a company has to be able to sell the additional product.

From what I've seen in the U.S. at the moment, there is so much imported product (blown film, anyhow) at very low prices, that most blown film lines are producing much less than they are capable of.

Why bother making film at $0.70 / pound when you can buy imported film for $0.50 / pound? Just shut down your lines and become a film importer, you'll make more money.

Just my (unfortunate) perspective.

-Bob Cunningham

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Steve H
Moderator

Posts: 184
From:New Zealand
Registered: Jun 2001

posted January 11, 2003 02:21 PM     Click Here to See the Profile for Steve H   Click Here to Email Steve H     Edit/Delete Message   Reply w/Quote
G'day Bob

"tweaking" the process to improve output can be used to make more to sell. The other way to realize a "profit", is to reduce the cost of what is currently being made.

Faster throughput, setups, changeovers all mean that for every hour of labour we pay out for, we get more kilos of product to sell. I monitor every every "sold" kilo produced and devide the total number of sold kilos by the total number of hours paid (inc vacation/sick etc). For my company, so long as we maintain an average rate of 25- 26 Kg/Hr, we're breaking even.

Another KPI, is the waste rate. We measure the total input of raw materials against the total sold. Over the last few years, about half of one percent of slippage has occured each year.

I race yachts, and I see a number of parallels between extrusion and sailing. Everyone has approximately similar setups, but how well an individual line performs depends of how well the line has been setup, maintained and the various settings have been optimised. The settings that "worked" today on this "lot" of resin- will not be the best for the next "lot".

It's much the same sailing, and the boats that consistently win have got:
(a) reliable equipment that is well maintained.
(b) good crew who know their individual jobs, but can also do two or three other positions also. The crew has to be a team (no i in team)
(c) good instrumentation
(d) a "skipper" who can make sure the boat is always in the best place relative to other boats
(e) an excellent knowledge of the "rules" and how they apply to any situation

In short, you have to know what the numbers currently are, what they should be, and how to close the gap. Most people in business are too focused on the monthly report- which is a bit like driving a car by looking in the rear view mirror. The other problem is that most managers are in their current job for one or two years, so they're only interested in the "here and the now", not something that will benifit the company over a longer term.

I'll stop now if you've got this far, go have a beer

Steve Hodgson

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Tom C
Moderator

Posts: 142
From:Wharton, NJ, USA
Registered: Jun 2001

posted January 12, 2003 09:54 AM     Click Here to See the Profile for Tom C   Click Here to Email Tom C     Edit/Delete Message   Reply w/Quote
Bob,

Where are the low cost imports coming from?

Tom C

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zabielski
Senior Member

Posts: 158
From:McHenry, IL USA
Registered: Nov 2002

posted January 13, 2003 06:45 AM     Click Here to See the Profile for zabielski   Click Here to Email zabielski     Edit/Delete Message   Reply w/Quote
Tom C: To the best of my knowledge, almost all low cost films are coming directly from China. Some blown on Chinese lines, others blown on foriegn lines - but the vast majority have been imported from China.

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Tom C
Moderator

Posts: 142
From:Wharton, NJ, USA
Registered: Jun 2001

posted January 13, 2003 07:17 AM     Click Here to See the Profile for Tom C   Click Here to Email Tom C     Edit/Delete Message   Reply w/Quote
All roads don't lead to the dreaded China debate, do they?

Tom C

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zabielski
Senior Member

Posts: 158
From:McHenry, IL USA
Registered: Nov 2002

posted January 14, 2003 05:20 AM     Click Here to See the Profile for zabielski   Click Here to Email zabielski     Edit/Delete Message   Reply w/Quote
Tom C.: No, my reply can be backed up from many "studies" published attesting to fact - not fantasy.

I'm not sure why such would lead to such a dreaded debate, as China simply has targeted the worlds customers - period. They have become successful in outproducing and selling to jobbers every film imaginable, and they spend some hefty money for State-of-the-Art equipment.

I looked at a 5 extruder Blown Film co-ex line last month that is headed for China from Canada. I'd guess the line is about i.2 million US$. I was told that is their fifth line, with more orders coming.

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Tom C
Moderator

Posts: 142
From:Wharton, NJ, USA
Registered: Jun 2001

posted January 14, 2003 10:36 AM     Click Here to See the Profile for Tom C   Click Here to Email Tom C     Edit/Delete Message   Reply w/Quote
Take a couple hundred million people, deny them freedom and basic human rights for a couple of decades, take all the money and invest it in equipment, and then target world markets using slave labor rates. No problems here, just good all fashion competition!

Tom C

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StrapGod
Senior Member

Posts: 20
From:RH, SC USA
Registered: Jul 2002

posted January 14, 2003 09:14 PM     Click Here to See the Profile for StrapGod     Edit/Delete Message   Reply w/Quote
I am probaly not as familair with many of the industries that you people are discussing - but I know in mine (strapping) there are other factors that limit extrusion optimization, such as limitations on "doff" time or packaging of final product. I agree with you for the most part though. Far too little time is spent fine tuning the process and far too much time anylyzing scrap rates. Gee, you think they are related? Hmmmmm....

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zabielski
Senior Member

Posts: 158
From:McHenry, IL USA
Registered: Nov 2002

posted January 15, 2003 06:40 AM     Click Here to See the Profile for zabielski   Click Here to Email zabielski     Edit/Delete Message   Reply w/Quote
Tom C. I've been to China now in the last year 7 times, and I have yet to see "slave" labor. What I think you and others are missing is that the Chinese economy is about in the 1920's (U.S.A.) era there, and the economics greatly weight in to their benifit.

1 US$ = ~ 8.33 RmB, and you simply overlook monatary exchange rates.

A five star Hotel stay is < US$ 100. Her in America, it is easily $ 500 - $ 600.

You also overlook their cultural differences as well, including their strict adherance to Communism. However, China today is significantly different then even 12 years ago. They are practicing a two fold system now in the larger area's. First is Communism, and salted with secondly, Capitalistic qualitites.

In essence, they are favorable to capitalism - as long as it brings in money. Because of this, they keep their people employed.

The "workers" in general get paid, are provided a roof over their head and food to eat by their employers. There is no charge for health care under Socialistic systems - as is the case in the Scandinavian Countries like Denmark, Norway and Swedan.

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Tom C
Moderator

Posts: 142
From:Wharton, NJ, USA
Registered: Jun 2001

posted January 15, 2003 08:56 AM     Click Here to See the Profile for Tom C   Click Here to Email Tom C     Edit/Delete Message   Reply w/Quote
Mr. Zabielski,

We have been here before.

You feel that the Chinese compete under fair business practices, while I'm sure they don't.

Being in the plastics industry surely you must have seen the effects of China's business practices on the industry. It has been mentioned in this forum that some would chose to shut down production because the price for imported Chinese goods are so low that competing is out of the question.

As stated you believe that the ability of the Chinese to price way below market is just because of good business practices.

I believe that their ability to price this way is an artifice based on past and present Chinese government practices. I have had long dealings with the Japanese who think nothing about using predatory pricing practices to gain market share. They did it for decades, but do you see low cost Japanese good any longer? No, because that was an artificial situation also.

The damage is evident certainly in the injection molding industry. Mexican labor and goverment incentives are not even able to retain the business. Are you willing to give up that industry while not questioning Chinese business practices at all? (None the less the human rights issues. Try having too many children!)

Tom C

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BrianAndLiz
Senior Member

Posts: 36
From:Ontario, New York... Good Ole USA
Registered: Nov 2002

posted January 17, 2003 04:27 PM     Click Here to See the Profile for BrianAndLiz   Click Here to Email BrianAndLiz     Edit/Delete Message   Reply w/Quote
Every day, we here about more and more shops (injection, extrusion, film, tool-makers) closing up 'round here.

How can we stem the bleeding?

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BrianAndLiz
Senior Member

Posts: 36
From:Ontario, New York... Good Ole USA
Registered: Nov 2002

posted January 17, 2003 04:27 PM     Click Here to See the Profile for BrianAndLiz   Click Here to Email BrianAndLiz     Edit/Delete Message   Reply w/Quote
Every day, we here about more and more shops (injection, extrusion, film, tool-makers) closing up 'round here.

How can we stem the bleeding?

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zabielski
Senior Member

Posts: 158
From:McHenry, IL USA
Registered: Nov 2002

posted January 18, 2003 07:33 AM     Click Here to See the Profile for zabielski   Click Here to Email zabielski     Edit/Delete Message   Reply w/Quote
Drian&Liz: To stop the bleeding, a little pressure would help. I recall that there are some Congressional investigations/hearing going on, but I doubt that anything will change until the (or just before) the next elections.

However, for those interested in contacting their Government Representitives in filing complaints, I would highly suggest that you look into the web-site: opensecrets.org to see just where each extracts their political/financhial "gift's".

Modern Plastics (January, 2003) have some other examples of how the Blown Film Industry is losing out to foreign compitition, as well as an article on why Portugal is building Molds at an accelerated rate.

I tend to look at such trends as Geographical Economics, as well as Geographical Ethics but most importantly - compitition. It will get sharper and sharper.

More & more Mold's are being made abroad, and it is short circuting our MADE IN USA theme started up many years ago.

Does the USA have similiar Trade Commisions as does Portugal?

[This message has been edited by zabielski (edited January 18, 2003).]

[This message has been edited by zabielski (edited January 19, 2003).]

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talisman23
Member

Posts: 2
From:chennai,Tamilnadu.INDIA
Registered: May 2003

posted May 25, 2003 09:23 AM     Click Here to See the Profile for talisman23   Click Here to Email talisman23     Edit/Delete Message   Reply w/Quote
Having joined a few minutes back,a fresh member at that, I am rather intellectually stimulated reading all the views posted for this topic.The Chinese bug bear seems to have caught up with the western world finally. Sometime back I heard from a chinese friend of mine that they intend to capture the world through their economic might and not militaryly, as the western world believed for a long time.
Beware USA.
After all the WTO and the globalization concepts have been scripted by none other than U.S.A. Today the american balance of payments is negetive and is a big worry to the Federal Reserve & the U.S Tresasury though they will never admit it in any forum. Their foreigh policy towards the Middle East and Far East has been a disaster, as history has unfolded. So I feel it is american policy which is wanting rather than blame the Chinese. The faulty lies in Washington and not Beijing or for that matter New Delhi.
Sriram Venkatramanan

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zabielski
Senior Member

Posts: 158
From:McHenry, IL USA
Registered: Nov 2002

posted May 26, 2003 09:08 AM     Click Here to See the Profile for zabielski   Click Here to Email zabielski     Edit/Delete Message   Reply w/Quote
tailsman23: So what do you propose? Stopping all trade? Impossible. Those in Washington are paid special homage by the Chinese Government, as they want things the way they are.

I have never yet heard of any political movement to stopr all trade with China, nor to oust those in elective offices that yield to their Communist regime.

All i've ever heard of is "investigative Commisions, but nothing has yet stopped the trade deficit.

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zabielski
Senior Member

Posts: 158
From:McHenry, IL USA
Registered: Nov 2002

posted May 27, 2003 08:06 AM     Click Here to See the Profile for zabielski   Click Here to Email zabielski     Edit/Delete Message   Reply w/Quote
I apologize and stand as corrected. Pull up The Peoples Daily web-site, as there is an imposing ban on speciifc Textiles (just read it today).

Very important reading on "HOW TO" start the wheels moving.

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