DS Smith Commissions Voith to Rebuild PM 4 at Viana Mill in Portugal

The reuild will increase production on PM 4 at DS Smith's Viana Mill from about 400,000 tpy of kraftliner to 428,000 tpy.

June 5, 2023 - Voith announced that it has been commissioned to rebuild a paper machine — PM 4 — at DS Smith's Viana Paper Mill in northern Portugal.

PM 4 produces about 400,000 tons per year of kraftliner and high-performance top kraftliner.

According to Voith, the extensive rebuild will increase production and improve overall efficiency. Production will expand to around 428,000 tons per year with a machine design speed of 1,100 m/min.

"We are happy to realize this project together with DS Smith," said Marcos Garcia de la Torre, Managing Director Voith Paper Spain. "Our customized solutions will lead to the desired production capacity, efficiency and quality."

Scope of the Rebuild

The rebuild scope includes modifications to the forming section to increase capacity and performance of the paper machine. The press section will be completely renewed, including installation of a Tandem NipcoFlex press that will significantly increase the dry content after press and reduce specific steam consumption.

The transfer between press and dryer sections will be modified with state-of-the-art web transfer and tail threading technology to provide the best runability for lightweight grades. In addition, smaller modifications and upgrades in the stock preparation and approach flow line are planned.

The scope of delivery also includes a comprehensive fabrics package for the PM 4 start-up and subsequent supply, as well as spare parts.

The start-up of the project is scheduled for the fourth quarter of 2023.

Voith Paper, part of the Voith Group, is the full-line supplier to the paper industry, providing a wide range of technologies, services, components and products, and offers paper manufacturers solutions from a single source.

SOURCE: Voith Group