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Web Tension Control Fundamentals

(News | New Products)

January 24, 2019, ... that is internally connected to a vacuum source.  The ideal vacuum roll will have adjustable side deckles to permit variable web widths.  The better the zone tension isolation, the greater capability the ...

Montalvo Offers Communication for Tension Controllers

(News | New Products)

March 03, 2017, The company says ODVA EtherNet/IP is now available as an option for its Z4 Tension Controllers, reportedly offering faster communication GORHAM, ME | Montalvo, international specialists in web tension ...

Web Lines: How To Control Roller Nips

(Web Handling)

July 31, 2010, ... weight and external load delivered by pneumatic or hydraulic cylinders. In my June 2007 column “Under Pressure” (http://pffc-online.com/mag/paper_pressure_brighter_look/index.html), I reviewed the variables ...

Controlling Your Web from Beginning to End, Part II

(Magazine)

December 31, 2000, ... winding wraps. The amount of stack compression is a function of several variables, including thickness of the entrapped boundary air layer between the wraps; height and population of surface asperity; ...

Tension: The First Thing We Must Get Right

(Coating/Laminating)

April 14, 2024, ... tension or acceleration will use variable frequency AC drives (VFAC) or servo motors. Feedback Options Feedback options for velocity include motor encoders, surface contact wheels and laser doppler ...

Tension: The First Thing We Must Get Right

(Converting Expert)

April 08, 2024, ... processes may use clutches or differential shafts. Festoons and dancers often use cylinders to provide tension. Processes that require higher performance for speed, tension or acceleration will use variable ...

The Merits of a Repurposed Slitter Rewinder

(Equipment/Machines - Converting)

February 18, 2024, ... winders have been driven by variable speed DC drives and motors. However, in recent years, DC motors and drives have been replaced by AC vector drives and motors. The reason being, AC motors tend to require ...

Unwind and Rewind Guides: Design and Installation Considerations

(White Paper)

March 21, 2023, ... the state-of-the-art stepper and servo actuators can provide benefits such as smooth response at variable speed as well as full force/thrust at zero speed, while eliminating the need for plumbing and the ...

Winding: Part 4

(Web Handling)

March 05, 2023, ... PLC tags for process variables. Use trend charts to document shifts in process capability (Figure 4). Establish required preventative activities for weekly, monthly and annual checks. Check cylinders ...

New SIMOTICS SD200 Frame Size 440 Low-Voltage, Severe-Duty AC Motors Now with 75-800 hp Output

(News | New Products)

June 23, 2021, ... suitable for variable speed drives in constant torque (4:1) and variable torque (20:1). All windings are tested for Corona Inception Voltage (CIV). “One of the features of the SD200 is its flexibility ...

NEW HIGH-INERTIA 1FK7-HI SERVOMOTORS ADDED TO SIEMENS OFFERING

(News | New Products)

December 31, 2020, ... suitable for high- and variable-load inertia applications, including the feed and auxiliary axes on machine tools, as well as winders and unwinders on converting, packaging and printing equipment. These ...

Montalvo Announces Magnetic Particle Brakes

(Controls)

October 30, 2015, ... Starts and Stops • Silent Operation • Low Power Consumption • Compact, Space-Saving Units • Linear and Proportional Torque to the Electric Current • Cost-Effective Solution for Variable Torque ...

Should Unwind Tension Be Lower Than Winding Tension?

(Web Handling)

March 26, 2015, ... where your winding process is and where to go to improve it, a winder should be calibrated to know how it functions—how the controlled variables (such as current, air pressure, or percent settings) create ...

Show Preview | ICE USA 2015 Returns to Orlando with Added Features

(Trends/Management)

January 05, 2015, ... discuss "Basic Industrial Drying Methods," including heat transfer variables, efficiency considerations, and the pros and cons of common drying techniques. Convention drying methods, infrared heating, and ...

Show Preview | Labelexpo Americas 2014 Enhances Focus on Package Printing

(Label/Tape)

August 04, 2014, ... on a clear substrate with a clear liner, as well as improved Variable Data Printing processing for maximum label customization.     Esko Offers Updated Preproduction Toolset Esko (Booth 5202) will ...

Converting Headaches? Get Relief at CPP EXPO's PFFC-Sponsored Technical Session

(Trade Shows)

July 13, 2014, ... or cure 3. Variables that have been added to processes 4. How to control process colors printed with or without preprinted whites for cross platform and surface color consistency For more information, ...

Web Lines | Why Is Winding Optimization Difficult?

(Web Handling)

April 21, 2014, ... aspects of roll and web quality are difficult to quantify. Try improving something you can’t measure— yes, challenging. Winding process is complex with many variables to consider. Winding quality ...

Siemens Offers Matched Motor/Drive Combo

(Drives/Motors)

May 10, 2013, ... duty ratings in a 4:1 speed range for constant torque and 20:1 speed range for variable torque. Simotics SD100 units are severe-duty TEFC motors that meet NEMA Premium efficiency. Communications selections ...

Web Lines | Winding Process Fundamentals, Pt. 1

(Technical Reports)

January 13, 2013, ... function of two variables: center torque and surface nip load. Understanding how applied center torque (in force x radius) becomes tension is easy. Torques are a force times a distance. Reversing this ...

Rockwell Automation Adds Power to Drives

(Drives/Motors)

January 12, 2013, ... for a wide variety of applications ranging from simple variable speed and variable torque control to the most demanding systems requiring constant torque control. The latest frame extension delivers ...