Valmet

Embark on a new path with Valmet’s Advantage™ Visconip® press rebuild

100 sold - the results proven by customers around the world.

Author: Valmet

The road to achieve low carbon emissions with high productivity in tissue production is not always a straight path forward. It requires balancing profitability, end-product quality, fierce competition, regulations, high energy prices and other inevitable factors. However, one concrete action that all tissue producers can start with is to review where in the machine a potential change could be made. Because with different rebuild opportunities there are ways to improve. And the VALMET Advantage™ ViscoNip® press is a trusted example with 100 pieces sold. Tissue makers around the world are reporting enhanced product quality, increased flexibility and runnability together with cost reductions, lower energy consumption and savings through fiber conservation. The ViscoNip press operates over a wide range of linear loads which opens for extensive possibilities to develop products. Low linear load provides highest possible softness and bulk while high linear load improves energy and production efficiency. In addition, the linear load and load ratio is easily changed during operation without any disturbance on the quality or runnability of the machine. This allows for improved flexibility.

Valmet’s flexible tissue making technology provides sustainable production of all types of grades

Results contribute to continued collaboration

Papel San Francisco’s collaboration with Valmet started about 20 years ago and recently they invested in their seventh tissue machine from Valmet which also includes the hundredth Advantage ViscoNip press to be manufactured by Valmet. When asked how the ViscoNip press has improved their production Dario Palma y Meza Espinoza, Director of Operations at Papel San Francisco answers: “we have seen increase in quality of the paper but also less down time for maintenance. It has very good reliability. In addition, our operators states that it is easy to operate and easy maintenance”.

Running smooth at high speed

The results from replacing a SymBelt press with a ViscoNip press at Fine Hygienic in Al Bardi, Egypt are astonishing. Operation Manager, Eng. Khalid Banat states that speed has increased 150-200 m/min overnight without any disturbances and is running very smooth at 2000 m/min. Even though they are now using lower nip loads of 90-100 KN compared to 115 KN with the SymBelt press, the energy consumption has decreased. Further, the flexibility in the ViscoNip press, with its polyurethan press body being soft against the Yankee, gives better uniformity and thereby better results in terms of quality.

 

Fabrica de Papel San Francisco (FAPSA) and Valmet.
Francesco Corrotti, Operating Coordination Director Sofidel.

Improved energy efficiency

A larger scope rebuild case at Metsä Tissue in Finland resulted in increased production capacity by 15% and as importantly, demonstrated improved product quality and energy efficiency. Here the ViscoNip press contributes significantly to the results.

Multiple benefits after the re-build

After the installation of the ViscoNip® press, together with the Advantage ReDry, at Sofidel’s mill in Baglan (UK), the dryness was increased by 3.5-4% compared to the single suction press roll previously installed in the machine. Sofidel also experienced less web breaks; the paper that comes off the blade is more uniform.
Benefits are also visible in the next step of the process: the converting line. After the re-build they now have more stability in the sheet.
Another improvement is the felt and mostly belt lifetime.

Francesco Corrotti, Operating Coordination Director at Sofidel reflects on the findings from their rebuild in Kisa, Sweden: “our perception is that the ViscoNip press seems to be gentler towards the belt as 7 months after the startup the machine was still running with the same start-up belt without any sign of wearing. This is of course very positive in terms of reduced maintenance cost”. The Advantage™ ViscoNip® press is standard in all Valmet’s new Advantage™ DCT tissue machine installations and is very well suited for tissue machine re-builds independent of original make. Reaching your sustainability targets can be challenging when moving from words to actions. By considering Valmet’s rebuild opportunities we can support you on the journey so you can embark on a better path forward.

Valmet ViscoNip®.

 

 

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