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WHAT'S NEW PRODUCTS: June 200

(New Products)

May 31, 2009, ... light curtains prior to the nip, as well as emergency stop switches at all four corners of the machine. Machine features speeds of 0-80 fpm, pneumatic tension control, and 8.0-in. nip rolls covered with ...

Stress & Strain

(Archive)

May 31, 2009, ... slitting; gather and buckle ahead of the nip point of a crush knife; and flutter out of plane, contacting shear knives ahead of the overlap point. In all these scenarios, a perfect knife setup can be ruined ...

The Coefficient of Winding Trouble

(Web Lines)

April 30, 2009, ... a product with a COF of 0.1 relative to 0.3 will require three times the nip load to create the same roll tightness. But since low COF rolls need more, they usually need to be wound at higher tension and ...

Crowning Benefits

(Web Handling: Main)

February 28, 2009, Many industrial manufacturers rely on crowned rollers. A crown is a shape or diameter profile necessary to compensate for deflection and obtain uniform nip pressure distribution Many industrial manufacturers ...

Testing & Measuring Products

(Magazine)

October 31, 2008, ... downtime. Dymax Corp. | 860-482-1010 | www.dymax.com PFFC-ASAP 336 Measure Nip Widths The Mini Sigma-Nip electronic nip analysis system measures roller profiles and diagnoses roll alignment, reportedly ...

Film Converting: Luminit Films Shape Light

(Substrates)

September 30, 2008, ... a sub-micron pattern of lenses — as many as 20 million/sq in. — onto the epoxy, which is then applied to the film using an ABBA nip roller. “The nip roller presses against a ‘nickel shim’ that has a ...

August 2008 PFFC What's New Products: Part tw

(New Products)

July 31, 2008, ... press is offered with eight- or ten-color capability. A sleeve-type nip roll prior to the first printing deck and automatic sleeve pushers facilitate sleeve changeover. Featuring automatic and “smart” ...

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

(Winding Unwinding Rewinding)

July 31, 2008, ... the air entrained with and without a nip, side leakage during winding, and the loss of roll tightness as air escapes over time. The effects of dimensional changes due to viscoelasticity, temperature, ...

Slitter/Rewinder Enhances Productivity, Flexibility

(News Eclips)

May 20, 2008, ... with an instant equipment diagnosis while also allowing remote installation of applicable upgrades when needed. Other options: differential core holders and pneumatic nip rolls reportedly offer more precise ...

W&H to Debut CI Flexo Press at Interpack 2008

(News | New Products)

April 06, 2008, ... improvements, such as sleeve-type nip rolls and light-weight doctor blade chambers, highlight this new development. The MIRAFLEX C is available with 8 or 10 color decks and printing widths of 39-in. to ...

What's New Product

(Magazine)

March 31, 2008, ... to what will be encountered on-press, reports company. Printhead has micrometer-calibrated nip controls, as on earlier version, but now the anilox nip affects contact with plate, not with rubber transfer ...

What's New Product

(New Products)

February 29, 2008, ...  Precision AirConvey | 302-999-8000 | www.airconvey.com PFFC-ASAP 416 Nip Rolls Have Many Uses Nip rolls are said to be durable and are designed for a variety of converting applications, including ...

Roll Winding Dynamics

(Web Handling)

January 31, 2008, ... share of nip pressure, which may damage delicate materials; diametrical variations can result in an uneven stretching of the web around the roll so that the appearance of bagginess becomes a cause for ...

Parallel Protocol

(Web Handling)

December 31, 2007, ... each time.) Finally, rolls that can be nipped and are used to apply a layer of coating onto a substrate, as shown in Figure 5, can have misalignment problems that lead to uneven coating thickness. This ...

Differential Winding Limits: Part II

(Magazine)

November 30, 2007, ... or high winding nip loads. Radially Loading Systems In radially loaded shafts, the torque applied to a core is proportional (or nearly so) to the number of elements that grab the core, and each core ...

Differential Winding Limits: Part I

(Web Lines)

October 31, 2007, ... material density, and roll width, you probably don’t have this important capability. Two last factors that add to torque are nips and inertias. If you use a winding nip roller to prevent air lubrication ...

New Products, Part 1

(Magazine)

October 31, 2007, ... sensor is analyzing and to provide higher accuracy and speed. EMX Industries | 216-518-9888 | emxinc.com | PFFC-ASAP 404 Measure Nip Width Instantly The P-Nip handheld measurement device allows ...

WHAT'S NE

(Magazine)

August 31, 2007, ... Proofing head works in combination with system’s precision speed and nip controls so operators can build an accurate fingerprint of any print station. Integrity Engineering | 763-856-4040 | perfectproofer.com ...

New Publication on Winding Machines

(Archive)

August 22, 2007, ...  Roll Geometry and Properties Simple Material Properties Introduction to Wound Roll Modeling Simple 1-D Models 2-D Models and Gauge Variation The Effect of Nip on Wound Roll Stresses The Effects ...

Cut to the Quick

(Magazine)

June 30, 2007, ... Elliot needed a system for roll handling and manipulation of unwind rolls; crush and razor slitting; and rewound roll handling, including upending and packaging onto pallets. Specifications included a ...