Menges Roller Offers Industry Report on Crowned Rolls
WAUCONDA, Ill.—Menges Roller Co., a full-service roller manufacturer, has announced released a study on crowned rollers used in converting, paper, film, nonwovens, and foil industries. “The Crowned Roller Report” is the culmination of analysis conducted by Menges Roller.
“A lot of companies specify crowned rollers without realizing the decision has to be taken with caution,” said Matthew Menges, President. “When the choice is right, crowned rollers ensure proper web alignment and counter effects of deflection, but accuracy and the amount of crown are critical.”
Issues addressed in the report range from reasons for crowned rollers, to specifying the amount of crowning. Included are drawings and diagrams further explaining issues like deflection, uniform loading and nip impression widths. Some of the key elements of the report are:
• Definitions of terms, beginning with crowning and roller deflection
• Explanations of the reasons for crowning rolls
• Detail on nip systems, and reducing nip variation
• Advantages, including longer lasting roll coverings
• End product benefits in improved quality
• Avoiding poor crowning choices that could cause more problems
• Choosing the amount of crowning and how it’s calculated
• Using engineering equations and other methods to determine crown amount
• How computerized grinding delivers the best results
• Most commonly used crown angles
• Evaluating crowning and nip impression testing
• Confirming accuracy, roll alignment quality, actual nip width
• The role of deflection and resulting nip load in crowning
For more information, visit www.mengesroller.com
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- Matthew Menges