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.
