C.I. Drum Temperature

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colbyc36
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Joined: Tue Jan 01, 2013 7:56 pm

C.I. Drum Temperature

Post by colbyc36 »

Greetings all.
I am currently running a W & H Soloflex. It's an 8 color central impression press. We use water based inks. We have all of the user manuals, however 60% of the literature is in German, I am not sure why it's mixed up like that. The press is an older model - 1995. The manual, it appears, calls for the water temp. circulating through the drum to be 57.6 degrees F. Does that sound right to you guys? Seems a wee low to me. I know it's not quite as important when we run paper, but sometimes we run Poly pro with higher end process work and I just want to be sure.

Thanks in advance Gents.
Colby
Frank Burgos
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Re: C.I. Drum Temperature

Post by Frank Burgos »

That sounds low to me, too. I've been around a few W&H presses, and the temp has usually been in the area of 90-degrees F. I've actually measured how much a drum warped (0.011") when too coll, and watched it return to less than .002" when warmed back up. Very important.

Frank
colbyc36
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Re: C.I. Drum Temperature

Post by colbyc36 »

Thanks Frank. Agreed.
locoprinter
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Re: C.I. Drum Temperature

Post by locoprinter »

86 degrees F is the perfect temperature.
Frank Burgos
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Re: C.I. Drum Temperature

Post by Frank Burgos »

That's consistent with my fading memory!

have a great day, guys!!

Frank
AxeZ
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Re: C.I. Drum Temperature

Post by AxeZ »

It looks like it is temperature for chiller roller, not for the CI?
Frank Burgos
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Re: C.I. Drum Temperature

Post by Frank Burgos »

Nope. It's the main CI drum.
Jeff
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Re: C.I. Drum Temperature

Post by Jeff »

We have run our CI between 92 and 94 degrees for the past 10 years
colbyc36
Posts: 30
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Re: C.I. Drum Temperature

Post by colbyc36 »

Thanks for input guys. The answers seem very consistent.
My past experience before this C.I. press was on an older stack press that didn't utilize water flow in anyway. My thinking after reading that in the manual was they are wanting me to run that cooler setting, and in conjunction with my dryers running (at 160), the surface temp of the drum would be about 90 degrees. I would suspect that the thickness of the water jacket in the drum would have an effect as well, where as the thicker the jacket...the less effect the water temp would have on the surface temp of the drum. Anywho...90 degrees it is.
Dave1776
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Re: C.I. Drum Temperature

Post by Dave1776 »

We have always run Prestone antifreeze in our C.I. Drum temperature control, is that still the best type of fluid to use or is there something better these days?
Frank Burgos
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Re: C.I. Drum Temperature

Post by Frank Burgos »

Something like anti-freeze is probably good, but don't quote me. I've seen a couple of drums that did not have anti-corrosion for years and there was rust in the drum plumbing.
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