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Teams from DS Smith and ANDRITZ following the successful start-up of the stock preparation line

DS Smith starts up ANDRITZ stock preparation line with Europe’s largest FibreFlow drum pulper

2026/07/14

DS Smith has successfully started up an ANDRITZ stock preparation line and reject treatment system at its mill in Porcari, Italy, including Europe’s largest FibreFlow drum pulper.

Alessandro Romagnolo, Project Head at DS Smith, says: “The successful start-up of this line is an important milestone for our Porcari mill. The project demonstrates the strong cooperation between our team and ANDRITZ. With the new system now in operation, we are able to efficiently process a wide range of recovered paper grades and reliably produce high-quality packaging papers from 100% recycled fiber.”

The line is part of a production system for packaging papers made from 100% recycled fiber for the fast-moving consumer goods and e-commerce sectors. Designed for a capacity of 1,650 t/d, the system processes a wide range of recovered paper grades. At the heart of the line is Europe’s largest FibreFlow drum pulper. The unit is also the 300th FibreFlow drum pulper delivered by ANDRITZ worldwide. It enables gentle pulping combined with efficient removal of coarse contaminants, supporting stable operation and consistent fiber quality.

The system is complemented by screens and LC-cleaners that ensure high stock quality and low energy consumption, even under varying raw material conditions. The reject treatment system includes a shredder and reject compactors for efficient processing of rejects from pulping and coarse screening. The ANDRITZ scope of supply also comprised basic and detail engineering, installation supervision, commissioning, and operator training.

DS Smith is a leading provider of sustainable fiber-based packaging worldwide, supported by recycling and papermaking operations. It plays a central role in the value chain across sectors including e-commerce, fast-moving consumer goods, and industrials.

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Teams from DS Smith and ANDRITZ following the successful start-up of the stock preparation line featuring Europe’s largest FibreFlow drum pulper at DS Smith’s Porcari mill in Italy

ANDRITZ GROUP
International technology group ANDRITZ provides advanced plants, equipment, services, and digital solutions for a wide range of industries, including pulp and paper, metals, hydropower, environmental, and others. Founded in 1852 and headquartered in Austria, the publicly listed group employs about 30,000 people at 280 locations in over 80 countries.

As a global leader in technology and innovation, ANDRITZ is committed to fostering progress that benefits customers, partners, employees, society, and the environment. The company’s growth is driven by sustainable solutions enabling the green transition, advanced digitalization for highest industrial performance, and comprehensive services that maximize the value of customers’ plants over their entire life cycle. ANDRITZ. FOR GROWTH THAT MATTERS.

ANDRITZ PULP & PAPER
ANDRITZ Pulp & Paper provides sustainable technology, automation, and service solutions for the production of all types of pulp, paper, board and tissue. The technologies and services focus on increased production efficiency, lower overall operating costs as well as innovative decarbonization strategies and autonomous plant operation.

The product portfolio also includes boilers for power generation, various nonwoven technologies, and panelboard (MDF) production systems. With waste-to-value recycling, shredding and energy solutions, waste and by-product streams from production are converted into valuable secondary raw materials as well as into sustainable resources for energy generation. State-of-the-art IIoT technologies as part of Metris digitalization solutions complete the comprehensive product offering.