Voith Scanner – intelligent quality control for paper webs

continuous quality control through high-tech sensortechnology

The new smart scanner series from Voith enables continuous process control of paper and pulp production - thanks to state-of-the-art sensor technology in high resolution and in real time.

The extremely compact measuring system can be integrated into all paper machines, even where space is limited, and is offered in a wide range of widths to precisely fit the customer's paper web. The basis is the stable and robust frame of the measuring platform, which ensures high traversing speeds (up to 600mm/s [23ft/s]) on frame lengths of up to 14.6m [47,9ft] and web widths of up to almost 12m [39,4ft].

In this measuring frame, the sensor head travels continuously reversing along the paper web and checks it for a wide range of parameters using state-of-the-art sensor technology.

The high measuring accuracy and accurate sensor head positioning ensure high-resolution profiles for longitudinal and cross profile control of the paper web, which in turn are used to control the paper machine. Thus, both the production process and the product quality can be stabilized and continuously optimized.The modular sensor head with customizable sensor equipment offers customers the possibility to adapt the Voith scanner to their needs and slitter requirements. Equipped with compact, robust and state-of-the-art sensor technology, the Voith Scanner sets new standards in paper quality control.

Among other things, the weight/m³ of the paper web, the moisture of the fiber composite, the fiber orientation in the paper web, color, coating, gloss level, mineral content and others are measured.A wide variety of sensor modules are used for analysis, including X-ray, infrared, microwave - a spectrophotometer can also be used here.

An optionally offered cleaning garage for the measuring head ensures the best measuring results and high system availability, even in particularly dusty ambient conditions.