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Guide web by detecting material edge
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The width change necessitates manual repositioning of the sensor to the new edge location, which introduces several operational risks.
  • Manual Sensor Respositioning: If the web is guided to the centerline position using single-edge methods, the sensor must be moved for every width change, increasing setup time and complexity. 
  • Possible Operator Error: Physical repositioning relies on the operator to correctly locate the sensor relative to the machine and securely lock it in position. Mistakes here can lead to misalignment. 
  • Fork Sensor Issues: Conventional fork stype sensors could snag the web material if the sensor is not moved before the width change. And even after width change the sensor needs to be repositioned to ensure that the web is inbetween the two sensing arms. 

Legacy systems attempt to solve this with mechanical sensor positioners (moving sensor center guides or even moving a single sensor), but these introduce additional mechanical wear and tear. Roll-2-Roll® Sensors solves this with sensors and adjusting the electronic guide point using Roll-2-Roll® Controller, eliminating the need to physically move the sensor when the web width changes. 

More importantly the Roll-2-Roll® Sensors are single sided completely eliminating the possibility of snag or web threading issues during width change over. 

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Electronic adjustment via touchscreen—no mechanical repositioning needed.

Simply adjust the "guide point" on the SCU6x touchscreen. The sensor stays fixed—no mechanical repositioning required. Width changeovers take seconds, not minutes.

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Up to 500 m/min with ±0.1mm accuracy.

R2R edge guiding systems maintain ±0.1mm accuracy at speeds up to 500 meters per minute (1,640 fpm). With a 500 Hz update rate, the sensors respond fast enough for high-speed converting lines.

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Yes, R2R sensors work on all materials including clear films without recalibration.

Yes. R2R fiber-optic sensors detect edges on clear films (PET, BOPP, cellophane) as accurately as opaque materials. The light scattering technology responds identically to any material—no special settings or sensors required.

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Edge Guiding

Edge Guiding Systems

Edge guiding is the process of automatically positioning a flexible web (material) by tracking one of its edges as it moves through a machine.

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