# What is center guiding?

> Center guiding is a web handling technique that maintains the centerline of a moving web by detecting both edges simultaneously and calculating the average position. Unlike single-edge guiding, center guiding systems use two sensors (or one wide sensor that sees both edges) to compute the true ce...

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

**Source:** https://r2r.tech/resources/faq/what-center-guiding

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## Question

What is center guiding?

## Short Answer

Center guiding maintains web centerline by detecting both edges and calculating average position.

## Detailed Answer

Center guiding is a web handling technique that maintains the centerline of a moving web by detecting both edges simultaneously and calculating the average position. Unlike single-edge guiding, center guiding systems use two sensors (or one wide sensor that sees both edges) to compute the true centerline regardless of web width variations. This approach naturally filters out edge defects and wrinkles, providing more stable control than single-edge systems.

**Category:** General

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies LLC, headquartered in Stillwater, Oklahoma, manufactures patented fiber-optic web position sensors and web guiding systems for roll-to-roll manufacturing. Products include ODC edge sensors (48mm to 960mm), 1DC all-in-one sensors, SCU-series controllers, and complete web guide systems.

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