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Adding a Nip Roll Assembly

Nip roll assemblies include 2 rolls that are "loaded" together so that there is pressure applied to whatever is fed between the two rolls. Nip rolls can be used to assist in laminating operations where two or more layers of webs are to be bonded to one another. Nip rolls are also used to "divorce" tension zones. Here are some things to consider when choosing a nip roll design for whatever application your may have for them:

  • You may have to drive the nip roll assembly, so get a drive supplier involved in the conversation to discuss line speed and tension issues.
  • Loading. There are several ways to load nip rolls, spring loading, air loading and mechanical loading. Keep in mind, there may be safety issues when considering that type of loading.
  • Rubber covering one, both or none of the rollers in the nip roll assembly.
  • If you are going to rubber cover any of the rollers in the nip roll assembly, consider what type, thickness and hardness of the rubber is desired.
  • Roll finishes are often important.
  • Deflection calculations should be completed and the nip roll assembly should be designed to limit the amount of roller deflection.

Many other considerations may arise for your specific application. Be sure all variables are accounted for in the nip design to provide the best possible performance for your application.






**DISCLAIMER - A great deal of time has been invested in the development of our weekly tech tips. To the best of our knowledge, they are accurate. It is up to the user to verify all results.

THE AUTHOR ASSUMES NO LIABILITY CONNECTED WITH THE USE OF THIS INFORMATION OR THE RESULTS OBTAINED FROM IT.



Converter Accessory Corporation
201 Alpha Road
P.O. Box 188
Wind Gap PA 18091-0188

Phone (800) 433-2413 or (610) 863-6008
Fax (800) 709-1007 or (610) 863-7818

sales@converteraccessory.com

www.converteraccessory.com


      
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Web Handling is the science, engineering and equipment necessary to successfully transport a continuous flexible material through various processes without defect. Enhancing Web Handling with proper equipment will ensure materials are processed at their maximum efficiency, allowing the process to generate maximum profits.

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