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Web Handling & Converting

Blogmaster: Dr. David Roisum

It is next to impossible to know, before hand, whether saleable product can be made during acceleration/deceleration.  Some processes, such as coating and drying, are speed dependent and can not be readily modulated during the speed change cycle.  Sometimes it is less than perfect drive co...

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Nuts and Bolts - Shear Ledges
Shear ledges are not for everybody.  However, they do handily solve several problems related to alignment and maintenance.  Find out what these are and whether shear ledges are for you. Web201.31c Nuts and Bolts – Shear Ledges ...

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Public Service Announcements
Now is the time to come to the aid of your community.  Call for papers deadline for AIMCAL Web Coating and Handling Conference USA, October 25-28, 2015 is rapidly approaching and you don’t want to lose your chance to show what you know. Now is the time to come to the aid of your ca...

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Posted in: New & Noteworthy
The biggest professional mistake I have made to date (that I know of) cost a good client about a quarter million dollars on a drum replacement that didn’t solve a problem, or even help for that matter. They still use me on a regular basis. Why? Simple, mistakes of this size are common when you...

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Nuts and Bolts - Locking Devices
When you absolutely need to count on a nut or bolt, you can not rely on torque wrenches, locking compounds or lock washers.  Find out why. Web201.31b Nuts and Bolts – Locking Devices ***201.31b – Nuts & Bolts &ndash...

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I make no apologies for including almost no equations in my Web101 training that is available in your plant, as video-on-demand and in the public. (Mark your calendars for May in Charlotte US and June in Manchester UK). First, these are well documented elsewhere.  We only need to point to where...

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Nuts and Bolts - Set Screw(ed)
Nuts and bolts are perhaps the most common component found on machines.  Unfortunately, as we see in the first of a series, design and maintenance mistakes abound. Web201.31a Nuts and Bolts – Set Screws ***201.31a – Nuts ...

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Posted in: Design, Maintenance
Continuing with the theme of big industries that have serious blind-spots, we will move now to printing.  This industry is so old and so large that it is hard to even put numbers on it.  However, I once read that there are 50,000 commercial printers (from small photo labs to ultra high spe...

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More than a hundred authors have contributed to our collective knowledge of web-handling.  Find out who they are and what they’ve written about with the ease of a few taps of your fingers on a smart device. Web201.30c Web-Handling History – Authors

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Posted in: History, People
Insular Industries – Paper Machine Guiding
It is all too easy to critique the smaller web industry segments.  They do not have the depth, or breadth, or time or resources as others such as the paper industry that is now nearly two centuries old.   However, when paper does not keep up then we might expect that insularity could ...

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Dr. David Roisum

Dr. Roisum is a well-known authority in the area of web handling and converting. He has authored seven books, including Winding, Rollers and Web-Handling and has coauthored or edited several others. He was a technical editor for Converting Magazine with a monthly column entitled "Web Works." An accomplished professional speaker and instructor, Roisum has been praised for his skill at translating highly technical information into a common sense practical reference. Dave has been honored by TAPPI with their Finishing & Converting Division Award, Thomas W. Busch Prize and Finest Faculty awards and is a TAPPI Fellow. Dave received his Ph.D. from the Web Handling Research Center where he later became an Industrial Advisory Board member.

Dave has worked for the Beloit Corporation as a designer of winding machinery and later as a manager of research, and for Kimberly-Clark as a converting expert serving all business units. He is now a principal of Finishing Technologies Inc., providing consulting services to more than 300 clients who convert or manufacture: paper, film, foil, nonwovens, textiles and many other materials. He has accumulated much practical experience working in nearly 1,000 plants over the course of more than three decades.

Converting School

Dr. David Roisum's
Upcoming Classes
May 11 - 12, 2015 - Charlotte, NC
CONNECT USA - Web Handling and Converting
May 14 - 15, 2015 - Charlotte, NC
CONNECT USA - Winding: Machines, Mechanics and Measurements

View the entire AIMCAL Converting School class schedule »

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