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Web/Roll Handling

Hot Topics: Tension | Web Guiding | Winding/Unwinding/Rewinding | Materials Handling | Roll Handling | Rolls | Shafts | Heat Transfer Fluid | Trim Removal | Cores

Pay Attention to Tension

Published: September 01, 2003

Our web handling expert reveals the subtle secrets of the slitting/rewinding process.

The Long & the Short of Web Bending

Published: September 01, 2003
Last month I reviewed the parallel entry principle (PEP), how a web wants to “go with the flow” of a roller's surface.

Going with the Parallel Flow

Published: August 01, 2003
Parallel flow usually is a good thing. In driving your car down the road, if you and the other drivers agree to keep parallel to the lines in the road,

A Slippery Answer to Web Scratching

Published: July 01, 2003
What percent slippage in idler roller speed relative to web speed is required to create scratches? Answer #1: Zero percent slip. Scratches are a form

Winding Better Rolls

Published: June 01, 2003

It's not obvious how winding adds value to your product (it does), but it is obvious when it's done poorly.

Can't Touch This (Web): Part 3

Published: June 01, 2003
Over the last two months, I have reviewed why some webs demand U Can't Touch This and web line options for true touch-free web handling. This month, let's

Pillowing Puzzle

Published: May 01, 2003
Creative thinking and a wrinkle remover from CAC resolve a perennial problem for Relizon Co.

Can't Touch This (Web): Part 1

Published: April 01, 2003
More than a decade ago, rapper MC Hammer made famous forever the line U Can't Touch This. I've worked with converters who use this phrase to describe

Cinching Belt Tightening Gone Bad: Part One

Published: February 01, 2003
In today's economic climate, belt tightening sounds like a fiscally wise move. Belt tightening, also known as cinching, is good for budgets, trash bags,

A Well-Balanced Process Line

Published: January 01, 2003
Minimal maintenance practices that resolve roll unbalance can add up to higher product quality, better equipment, performance, and a bigger bottom line.

Differential Rewinding: Part Three

Published: January 01, 2003
This month we continue our diagnosis of differential rewinding. The last two columns reviewed the whys and hows of differential rewinding, but before filling your prescription for two new differential shafts, let's review potential detrimental side effects.

Differential Rewinding: Part Two

Published: December 01, 2002

Last month we made the case for using differential rewinding shafts. This month, let's talk about what differentiates one differential shaft from another.

Differential Rewinding: Part One

Published: November 01, 2002
Don't try to do ten things at once. While this is good advice, sometimes ten things come flying at you at once. If you focus on one item, you risk dropping the other nine.

Five Questions and Answers on Lubrication

Published: October 01, 2002
Lubrication occurs when a gas or liquid separates or reduces the contact between two surfaces. Lubrication is used intentionally to reduce wear and increase

Thin Webs without Wrinkles

Published: October 01, 2002
Any converter running webs of thin- and ultra-thin-gauge material, including foil, may experience wrinkle problems. In general, there are at least two

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