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- Small Flexing, Big Benefits
- (Magazine)
- October 30, 2003, ... more than 50-150x the mechanical deflection. It wouldn't seem 10-30 mils of spreading would be significant, but compared to a standard idler, this roller was 5x less sensitive to wrinkling from misalignment. ...
- Where Does a Spreader Spread?
- (Magazine)
- September 30, 2003, ... an upstream idler, across a 24-in. web span, and over the target spreader roller. A razor blade slit the web down the middle, upstream of the spreader roller. A roller's spreading effect was quantified ...
- A Slippery Answer to Web Scratching
- (Magazine)
- June 30, 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 What percent slippage in idler roller speed relative ...
- Can't Touch This (Web): Part
- (Magazine)
- May 31, 2003, ... up and returns from the dryer heading down, leaving 180 deg of wrap for all one-sided web handling functions in between. If the dryer has ten idler rollers, we have 18 deg for each. However, if we also ...
- Products
- (Magazine)
- January 31, 2003, ... is designed for rewinding large slit rolls to 1,000 m (39.4 in.) dia. Rubber-Covered Rolls Stop Web Wrinkles Webex Inc., Neenah, WI; 920/729-6666; webexinc.com Web Spreader idlers are grooved, rubber-covered ...
- A Well-Balanced Process Line
- (Magazine)
- December 31, 2002, ... hazardous vibrations to other machinery parts; surging and varying roll speeds as in the case of idler rolls; and the wear and destruction of bearings. There are two other developments that impact your ...
- Five Questions and Answers on Lubrication
- (Magazine)
- September 30, 2002, ... control. Following is a Q&A primer on air lubrication in web handling. What problems are caused by air lubrication? Lubrication reduces the force to drive idler rollers, leading to scratching and ...
- Goldilocks and the Three Bears Deal with Traction Problems
- (Magazine)
- July 31, 2002, ... wrap angle and COF as the main optimizing variables to adjust in our goal of finding a grip that is “just right.” The most common sign of “too little” grip is web scratching, from an idler roller not ...
- Cutting to the Chase
- (Magazine)
- April 30, 2002, ... Core Problems The laminator had been supplied with mechanically engaged sidearm pressure core chucks and aluminum idler rollers, but in diversifying its product mix, Chase needed the capability to run ...
- Need New Equipment or Accessories? NPD Is the Place to Look
- (Magazine)
- April 30, 2002, ... machine. They are suitable for idler or live roller applications and are available in three sizes, each offering a variety of load ratings to be used within a wide range of tension-sensing applications ...
- What's New in Narrow We
- (Magazine)
- December 31, 2001, ... Inc., Rochester, NY; 603/332-6150; dfe.com The NWI narrow web tension transducer is a cantilevered, bearing-mounted idler roller with two built-in tension sensing elements. With tension displayed directly ...
- Making Choices for Coating with a Laminating Adhesive
- (Magazine)
- September 30, 2001, ... over many idler rolls and undergo the tension necessary to pull it through the laminating operation. The secondary substrate experiences only unrolling, laminating in a nip, and rewinding. Because it travels ...
- New Product Digest
- (Magazine)
- August 31, 2001, ... option for idler roll tension transducer pairs: an integrated interface/amplifier that outputs a 10 VDC signal proportional to tension. Transducers with the special option are powered by 24 VDC. With the ...
- More Causes, More Cures For Web Scratches
- (Magazine)
- July 31, 2001, Last month I wrote that idler rolls (in high-speed processes) do not always turn at web speed even though they have sufficient wrap and free-turning bearings, Last month I wrote that idler rolls (in ...
- Web Scratch Solution: Regulate Your Running Rolls
- (Magazine)
- June 30, 2001, ... bearings are essential on all idler rolls but do not ensure that the surface speeds will match at high speeds. Usually the web's frictional driving force is reduced significantly when the web speed is increased. ...
- Over-Tensioned Webs and What to Do about Them
- (Magazine)
- May 31, 2001, ... in-feed idler roll to the drum to regulate the in-feed web tension. Likewise, a load cell roll should be mounted between the drum take-off roll and the wind-up tension isolation roll. The key to keeping ...
- Products
- (Magazine)
- May 31, 2001, ... transducer (load cell) inputs (0-10 V) to be monitored, one or two at a time, with the push of a selector button. Numbers on the readout selector correspond to the transducer-outfitted idler roll positions ...
- A Glossary of Descriptive TermsSixth Installment
- (Magazine)
- February 28, 2001, ... horizontal sliding (idler side) rotary chuck that will interface with the mandrel ends on cores that are dressed with expandable mandrels or that will interface directly with the roll core ends. The chuck ...
- Products
- (Magazine)
- February 28, 2001, ... heat source, and air-handling components are totally enclosed. Release-coated nozzles and idler rolls, semi-indirect heat sources, and HEPA filtration systems are available. Anilox Cleaning System Protects ...
- Innovative Problem-Solving: Advances in the Industry
- (Magazine)
- January 31, 2001, ... without making major adjustments in the machinery." Improved line speed also depends on the support equipment TCI designed internally. For example, idlers specifically are made to handle thin substrates ...
