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Stock preparation

Did you know that the world’s fastest papermaking lines are equipped with Valmet’s stock preparation systems?

Our modern stock preparation solutions help paper and board makers to

 

Reduce energy consumption  Minimize raw material costs  Deliver desired end-product quality

 

Integrated automation solutions further increase production efficiency and stability through accurate online measurements, controls and operator tools.

The right solutions and expert support tailored to your specific stock preparation needs

At Valmet, we have the solid world class expertise to understand your production-specific stock preparation process. Valmet’s globally proven technology covers all the needs from bale handling to headbox, comprising the various processes needed in stock preparation. Our experienced and skilled people support you right from initial planning to the project phase, and through commissioning and start-up to continuous production.

Full-scale pilot testing facility

The world’s most comprehensive testing, piloting and laboratory services are available at Valmet Paper Technology Center in Inkeroinen, Finland. The pilot facility provides a complete testing environment for mechanical pulping, recycled fiber, stock preparation and pulp drying. Valmet’s professional team has run hundreds of customer trials.

 At Valmet, we are continuously developing new solutions and processes to meet your needs through lower energy consumption and the more efficient and innovative use of raw materials.

Valmet stock preparation systems
Bale handling and pulping

Bale handling and pulping

Efficient raw material handling for consistent dry solids flow and optimal slushing results

Refining and deflaking

Refining and deflaking

Optimal fiber treatment with low energy consumption focusing on excellent end product quality

Broke system

Broke system

Smart solutions for efficient broke handling and processing

White water system

White water system

Solutions for improved capacity and highest possible filtrate quality

Automation for stock preparation

Automation for stock preparation

Stable paper quality at cost efficient and environmentally friendly way

Pilot trials for stock preparation

Pilot trials for stock preparation

Complete pilot processes for mechanical pulping, recycled fiber, stock preparation and pulp drying

References and results

 Raw material savings with refining rebuild

Raw material savings with refining rebuild

JSC Arkhangelsk PPM, the biggest containerboard manufacturer in Russia, has recently invested significantly as they strive to increase capacity, product quality, cost efficiency and sustainability. OptiFiner Pro refiners helped the Novodvinsk mill to meet its targets with an upgraded stock preparation system.

New refiner replaced two old, and saved energy up to 20%

New refiner replaced two old, and saved energy up to 20%

Cartiere Ermolli, produces specialty grades in Italy for flexible packaging like food wrapping papers. When creating specialty papers, doing refining right is fundamental. Mechanical properties of the fiber cannot be destroyed so the amount and the quality of the refining must be right, without any harmful cutting effects. When they needed increase in capacity and end product quality, the solution was OptiFiner Pro refiner.

The world’s biggest OptiFiner Pro refiner saves energy at Savon Sellu

The world’s biggest OptiFiner Pro refiner saves energy at Savon Sellu

Valmet delivered world’s biggest OptiFiner Pro refiner to save energy at PowerFlute's Savon Sellu mill in Finland. After refining rebuild, the paper mill uses 30% less energy while achieving the same freeness values as before. Besides energy savings, the refining process is now controlled much more accurately.

24% energy savings with new OptiFiner Pro refiner

24% energy savings with new OptiFiner Pro refiner

Mondi Neusiedler Mill in Austria had a clear target in energy consumption reduction. They saw the potential for energy savings and promptly commenced on a project to replace existing short fiber refiners with just one OptiFiner Pro refiner.