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Showing posts with the label salvage winder

Salvage winder video published.

We have published a new video on the  Universal X2 Salvage Winder page on our website.  This is the first footage of our popular X2 Salvage Winder (A.K.A Doctor Rewinder ) that we have made publicly available. The X2 variant shown in the video was built to accommodate large roll diameters, and this is worth mentioning because the design of the X2 does change depending on the demands of the processes for which it will be used. Our X2 is designed to be versatile so trying to list all the processes it is capable of would be impossible, here is a list of some of the more common uses: Salvage winding Recycling waste product (by trimming) Correcting badly wound rolls (by web guiding) Defect removal (using splice table) Print inspection Winding to length Winding from one core size to another Correction tension on rolls Trimming Changing print orientation Click here to find out more about Universal X2 Salvage Winders...

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 f...