# What is the advantage of Roll-2-Roll® Sensors for center guiding?

> Roll-2-Roll Sensors eliminate the need for mechanical sensor positioners—motorized assemblies that move sensors to chase edge positions. Traditional center guiding requires sensor positioners because narrow sensors cannot see both edges when web width changes. These positioners introduce motors, ...

**Last updated:** 2026-01-31

**Source:** https://live-roll2roll.pantheonsite.io/resources/faq/what-advantage-roll-2-rollr-sensors-center-guiding

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## Question

What is the advantage of Roll-2-Roll® Sensors for center guiding?

## Short Answer

Wide sensing range (48-960mm) eliminates mechanical sensor positioners, reducing failures and maintenance.

## Detailed Answer

[Roll-2-Roll® Sensors](https://r2r.tech/products/sensors) eliminate the need for mechanical sensor positioners—motorized assemblies that move sensors to chase edge positions. Traditional center guiding requires sensor positioners because narrow sensors cannot see both edges when web width changes. These positioners introduce motors, lead screws, and sliding brackets that jam, wear out, and require maintenance. [Roll-2-Roll® Sensors](https://r2r.tech/products/sensors) have wide fields of view (48-960 mm) allowing them to track width variations electronically without moving parts, eliminating a major category of mechanical failures and maintenance.

**Category:** Technical

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies designs and manufactures patented fiber-optic web position sensors and advanced web guiding controllers — the precision measurement and control core of modern roll-to-roll manufacturing. Spun out of Oklahoma State University's Web Handling Research Center and trusted by Fortune 500 medical, battery, and nonwovens manufacturers, our patented sensors work without recalibration at ±0.1mm accuracy up to 760 mpm — typical customer outcomes are 50%+ less downtime and payback under six months. Headquartered in Stillwater, Oklahoma, our team of PhDs, controls engineers, and industry veterans extends the sensor + controller core into complete web guide systems including stepper-motor-based linear actuators (RLA, BLA, LHS).

- Website: https://r2r.tech
- Phone: +1 (888) 290-3215
- Email: sales@r2r.tech