Winding Unwinding Rewinding

Keep Cores from Deforming

Leaf air shafts reportedly provide the ideal support for thin wall cores of 1 in. or larger to keep cores from deforming during winding. Trapper leaf

Couple Spindles Quickly

EZ-Lock Spindle Coupling Kits now are available for company's Helipath Stand, DIN Adapter, Thermosel, and EZ-Lock Vane Spindle Set. Reportedly, coupling

Winder Is Fast

The WOW winder, designed for stretch film applications, is said to offer higher roll quality, winding speed, winder indexing time, material optimization,

Cores | The Foundation of Winding

Where would you prefer to build your next house on swamp land or solid bedrock? This should be an easy question since it's clear a house starts with the

A Torque Devil Is in the Details

In center winders, like the classic Rolling Stones song, you can't always get what you want. Imagine you need to buy a new center-driven winder or unwinder.

Berry Plastics Gets First WOW Winder

GLOUCESTER, MA | Gloucester Engineering reports Berry Plastics, Evansville, IN, will install the world's first WOW Winder on a Gloucester 11-layer PE

Rewind Equipment: Chic & Sleek

IKEA's line of modern home furnishings is virtually synonymous with the phrase Scandinavian design. But one Sweden-based wallpaper manufacturer was using

Time for Unwinding Upgrade?

How do you know when its time to upgrade from a brake-controlled to a driven unwinding process?

Spool Rules

No longer just limited to paper, film, and foil materials, converting is a critical process for nonwovens and the increasing complexity of laminates

Winding Doesn't Add Up

When things in life are linear, they make sense. Driving two hours usually gets you twice as far as driving one hour. Adding two doughnuts a day to your

The Coefficient of Winding Trouble

In winding, the important coefficient of friction (COF) is always about the two surfaces that will come in contact as the entering layer hits the winding

Custom Core Shafts Do the Job

NEW BERLIN, WI Premier Paper Converting Machinery, a company making machines that produce fiber and corrugated partitions, now offers a custom machine

Winding: What We Know & What We Don't Know

Winding is an amazingly complex process. Our understanding of winding can be broken into three areas: the winding process, winder design, and wound roll

It's 40 Years for IMC

FAIRFIELD, NJ Why does one company survive and thrive for 40 years while many others seem to come and go? PFFC put that question to Bruce Butler, VP of

Web Lines: Thinking About New Equipment?

A new year often brings new budgets and thoughts about new equipment. If you are lucky enough to be handed a project to buy new converting equipment,

Roll Winding Dynamics

Materials today often are more than they may seem at first glance; many are manufactured with non-conventional properties. Label and semi-glossed enamel stocks are engineered

Picking Up the Pace

As press manufacturers continue to introduce presses that can run faster in theory but not necessarily in practice it falls to the manufacturers of register

Ecological Rewinder

| Titan has introduced the twin-shaft Titan ER610 cantilever slitter/rewinder to complement its Titan SR8 model. THE ER610 ecological rewinder is the result of market research, design, and development work by Atlas Converting Equipment and Bobst.

Differential Rewind Shafts

Goldenrod Corp. has released the 1250-DFX model differental shaft, which winds multiple webs of varying guage thicknesses by imparting just the right amount of resistance to the core ID.

Differential Winding Limits: Part II

Differential shafts are great tools, but like any tool, they have their limitations. Last month I covered the complexity of a differential shaft's actual

Differential Winding Limits: Part I

The purpose of differential winding is to apply a desired torque to two or more rolls winding on a single shaft. Differential winding allows multiple rolls to turn at differing speeds, with each roll free to slip at the speed required to compensate for roll-to-roll diameter variations and strand-to-strand length variations.

Slitting & Rewinding Fundamentals for Converters

The CEMA Slitting & Rewinding Fundamentals for Converters Seminar will be held November 13 and 14, 2007, in Minneapolis, MN, and will take you step by step through the best practices techniques in such areas as winding, slitting, cores and cutting, retrofitting, chucks, shafts, spreading, and guiding.

SHEAR Strategy

A new slitter/rewinder is giving UK-based TCL Packaging more versatility in manufacturi products for the food industry. The recently installed SOMA Engineering Venus II model was supplied through UK-distributor Engelmann & Buckham.

Baggy Webs: Part III-Causes

We know baggy webs are a problem and we know we can measure them. What do we do next? First, we need to find a way to fix it in the short term. Second, we can work on a long-term plan to prevent baggy webs from happening.

Cut to the Quick

A turnkey converting system allows Elliott Absorbent Products to offer faster turnaround times and new custom services.

Driving R&D

Improvements in web processing are driven by the need to reduce manufacturing costs and boost product quality. Playing a key role in many of these improvements are advances in web handling technology, many of which are the result of work carried out by the Web Handling Research Center (WHRC) at Oklahoma State Univ.

Going Thin

Thinner gauge materials impact both on operating costs and the environment. The difficulty with going thin is that problems such as wrinkling, air entrapment, and tension control, and various other problems typically associated with material profile perturbations, such as gauge band variations, can become magnified when processed on some types of slitter/rewinders and other converting machinery.

Shocks Can Be Deadly

An earlier column in this space on static elimination resulted in a response from a reader that is very illuminating. Following are summaries of the five main points from that response. This information shared by a reader should scare you.

How to Drive a Winding Roll

What is the best way to drive a winding roll? You have three choices: from the surface, from the center, or both.

Difficult Winding: Part II

Last month I introduced you to roll modulus ratio, the first of the terrible trifecta of difficult winding. This month let's move on to the next two of

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