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OLi

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Reply with quote  #1 
read this? Honorable mentioned is the papermill here where we currently have the flopping gbx, they blew up the Yankee twice and one was mentioned here:
 
http://www.perinijournal.it/Items/en-US/Articoli/PJL-18/Yankee-dryer-failures-An-overview-to-improve-tissue-machine-safety



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Walt Strong

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Reply with quote  #2 
I am glad your customer is the honor roll, or for a Yankee is it the dishonor roll?

Walt
OLi

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Reply with quote  #3 
Well having none functional valves for a thingy like that can not be so honorable, end of yankee ended up thru the wall and where I used to park my car much later and before I found out. Doing it twice is even less honorable even if it was more than 10 years between, not exactly the same and last time is maybe 20+ years ago now but still not forgotten.
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RustyCas

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Reply with quote  #4 
Nope. Didn't read it. Never seen a Yankee roll. Luckily have managed to stay out of paper mills.
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Rusty, it is a 12, 15 foot or larger cylinder of 10 - 12 feet long or bigger It think weighing in at 40 - 70 thousand kilos, whatever that is in pounds.  Spins at like 120 rpm for those in my experience. Surface speed 1300 MPM of higher.  Filled with steam - a rotating pressure vessel.  Quite complicated inside too.  Spoiler bars, siphon tubes and more.

Critical to making US speak - bathroom tissue, napkins Aus speak toilet paper, tissues.

Really good article OLI, I am only part way through but will read all.  Will be helpful for the 3 Yankee Cylinders under my vibration watch at the moment. rgds

 

OLi

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Reply with quote  #6 
This runs (should) 1800 on a good day (slightly lower right now due to vibration) but they got new cylinders a couple of times..... Machine is now very old basically. Rusty, maybe you are lucky but they drive them hard and it gives interesting problems sometimes. To cut out the tissue from the Yankee they have doctor blade systems and a chemical stuff they put on the cylinder so the knife blade should not touch and wear the cylinonder but ride on the coating and peel off the tissue and most of the time it works.....
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Vibe-Rater

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Reply with quote  #7 
Just looked at roll of toilet paper / bathroom tissue here in Hawaii - paper guys look at that every where in the world. Me anyway. Georgia Pacific. So they must have tissue machines. And Yankee cylinders. rgds
OLi

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Reply with quote  #8 
Oh yes, they are everywhere since it is bulky and do actual cost to ship they are produced closer to the end user .-)
news are going down as nobody except me read paper anymore, I do like the comics on paper but do read them on the web also,
journal maybe hold on as glossy magazines still have a market
copy is mostly fill with a few fibers and the rest some kind of chalk or filler so they are close to that filler supply or to fast growing pulp
producers in Asia as they obviously can ship it anywhere.
So tissue and carton for bag in box are the plants that will stay local it seems? So brand here and quite a few in Europe for tissue is Sofidel
and Serla the other plant in Sweden.

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