Web guiding - an introduction.

Web guiding is a term describing the method used to correct badly wound rolls or material and is used on slitters and salvage winders.

A sensor looks at material (web) running through a machine and sends a signal to a device that moves parts of the machine to correct the badly wound roll. Putting it at its most basic web guiding systems allow you to load a roll with a bad edge profile (I.E. not flat) onto a machine rewind it so that it has a flat edge profile.

Guider eyes (sensors) read the edge of the web, a line on the web or a 'broken' line printed on a roll of material. If the web guiding system 'sees' the web move left it will move the web to the right so that as it winds up on the rewind end of the slitter / doctor machine the edge of the final roll will be flat.

Many older web guiders move the winding web using hydraulic or pneumatic (air) methods, but hydraulics can leak oil onto the web and pneumatics tend to have slow response times unsuitable to fast moving webs. At Universal Converting Equipment our web guiders are all electric, thereby are cleaner, faster and much more energy efficient than older systems that use hydraulics.

Roll with bad edge profile, note the 'steps'

Roll with a good edge profile

Add web guiding to your machine...

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Slitter Man

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