Customer case:

Rebuilding with state-of-the-art technology in MM Količevo BM 3

Oct 7, 2024

MM Board & Paper’s collaboration with Valmet reached a milestone in October 2023 when their rebuilt BM 3 board machine and the first-ever hard nip sizer with a curtain application were successfully started up at the MM Količevo mill in Slovenia. The investment for the board machine consisted of three main updates: the dryer section rebuild; new sizing technology; and a new winder.

MM Količevo's new investment OptiSizer Curtain

In the end, the project was huge. We practically changed half of the board machine. Practically in 63 days we dismantled and assembled half of the machine and put it into operation. The start-up was very good, without any issues, and we got the quality that was produced before immediately after the start-up.

I must say, it was one of the most exceptional experiences in my professional career. The technology Valmet offers is top-notch, and the knowledge and expertise of their engineering team is remarkable.

Rado Kunavar, Operations Director at MM Količevo

Summary

Location Količevo, Slovenia
Solution

The rebuild delivery included:
Results

Prior to the rebuild, board machine BM 3 did not have a sizer. A prototype technology in sizing was chosen because it was the only technology flexible enough to fulfill all requirements of the product portfolio. The start-up was successful, and the machine produced sellable product immediately. The dryer section upgrade and Fold-up Wall enable easier maintenance and quicker access during breaks. From the safety perspective, the winder is state-of-the-art machine and it is helping to decrease the loss of bulk, especially in folding boxboard qualities.
Keywords Paper & board, rebuild, curtain sizing, innovation, capacity, Slovenia

Technical data

Grades Folding boxboard, white lined chipboard and linerboard
Technical information

Basis weight range: 180-450 g/m²
Start-up October 2023
OptiSizer Curtain sizing

OptiSizer Curtain sizing

The new surface sizing method applies the starch as a curtain of size. When combined with hard-covered rolls the results with coated cartonboards are significant: stiffness, quality and production increased, and energy and raw material consumption reduced.

Read the whole customer success story and watch the videos:

MM Količevo BM 3: Investing for the future with OptiSizer Curtain

MM Količevo BM 3: Investing for the future with OptiSizer Curtain

Watch the video to learn more about MM Količevo's OptiSizer Curtain investment. In October 2023 MM Board & Paper's rebuilt BM 3 board machine and the first-ever hard nip sizer with a curtain application were successfully started up at the MM Količevo mill in Slovenia. Prior to the rebuild, board machine BM 3 did not have a sizer. A prototype technology in sizing was chosen because it was the only technology flexible enough to fulfill all requirements of the product portfolio.

Rebuilding with state-of-the-art technology in MM Količevo BM 3

Rebuilding with state-of-the-art technology in MM Količevo BM 3

Watch the video to find out more about the latest collaboration between MM Board & Paper and Valmet. In October 2023 MM Board & Paper started-up the rebuilt board machine BM 3 at the MM Količevo mill in Slovenia. The investment for the board machine consisted of state-of-the-art technology and included three main updates: the dryer section rebuild; new sizing technology; and a new winder.

MM Količevo BM 3: Investing for the future with OptiSizer Curtain

MM Količevo BM 3: Investing for the future with OptiSizer Curtain

MM Board & Paper’s collaboration with Valmet reached a milestone in October 2023 when their rebuilt BM 3 board machine and the first-ever hard nip sizer with a curtain application were successfully started up at the MM Količevo mill in Slovenia.

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