Paper machine grade conversion

paper machine conversion rebuild

The world is changing fast; the consumption of newsprint and printing/writing papers is decreasing. The consumption of containerboards or cartonboards are rapidly increasing due to the e-commerce. An old paper machine can be updated with a grade conversion rebuild to produce more profitable products like containerboards, cartonboards or special papers.

Turn a new page for your paper machine

Together, we can find a solution for your purpose. Valmet is the trusted partner for you. Check the consumption forecasts for paper and board grades to see if you should consider a paper machine conversion for your paper or board making line:


Ensure successful conversion by pilot trials

Valmet Paper Technology Centers provides the world's most comprehensive offering of testing and piloting services to paper and board manufacturers worldwide. Our pilot facilities have the entire process covered, providing customers with excellent service and reliable results to support grade conversion investment decisions.

Interested in pilot trials?

Interested in pilot trials?

We offer the opportunity to experiment and develop paper and board products and processes without having to put your own production on hold. Follow the activities in the trials on site or remotely through live streaming cameras. Pilot trials are very cost-efficient compared to expensive tests in paper and board maker's own production.

Contact our pilot trial experts

Explore results of paper-to-packaging conversion


Stora Enso’s Varkaus mill in Finland converted their existing paper machine PM 3 into a board machine to produce linerboard to better meet the market need for renewable packaging. They chose Valmet as their partner for this challenging rebuild. Check the video to learn what they tell about their journey.