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Featured Tech tip: Why is it important to know what tension my process runs?

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Tech tip: Why is it important to know what tension my process runs?

As a machinery builder, we always ask our customers questions to understand their process. Many of these specifications are dimensions, such as width (range), maximum roll diameter and core size. We may ask your maximum material roll weight. All of these specifications are basic and relatively easy to attain. Really, all you need is a tape measure and possibly a weight scale to understand this information.

One question we almost always ask is “What tension range (minimum to maximum) do you run”. This specification is often difficult to receive from our customers because it is not something that can be measured with a standard device (like a tape measure or weight scale). However, this specification is important to know because it effects every area of a continuous web process. Equipment that will be effected by web tension includes:

  • Brakes (unwind tension)
  • Clutches (rewind tension)
  • Drives (rewind and process zone tension)
  • Rollers
  • Anti-wrinkle devices
  • Process equipment
  • Air shafts and chucks

Brakes, clutches and drives are directly affected by web tension. Their size, design and price depends on what tension they need to deliver to the web. Rollers are affected by web tension because they must be designed properly to rotate and stay in traction with your web. There are many types of anti-wrinkle devices to choose from and many times tension is a deciding factor as to what is the best type for your application. Process equipment must be designed to operate within the required tension range. Air shafts and chucks must be designed to hold the roll core, without slippage, through the full torque requirement, which is determined knowing web tension.

There are many methods for understanding what web tension you run, which we have discussed in past articles (register today to view archived tips on tension, after your register click on resource center). Understanding your web tension will go a long way to better understanding the best way to handle your web and process.


Written By: Jeffrey Damour, Sales Engineer, Converter Accessory Corporation, Wind Gap, PA, Phone - 800-433-2413


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Converter Accessory Corporation
201 Alpha Road
PO Box 188
Wind Gap PA 18091-0188

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

sales@converteraccessory.com


What is Web Handling?
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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