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Tue, Aug 3, 2021 16:51
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ANDRITZ to rebuild board machine at Mayr-Melnhof Karton in Frohnleiten, Austria

International technology group ANDRITZ has received an order from Mayr-Melnhof Karton, Austria, to rebuild its KM3 at the mill in Frohnleiten.

The aim of the rebuild is to increase production as well as improve quality and the ecological footprint. Start-up is scheduled for 2023.

The scope of supply comprises:

  • Rebuild of the wire section, including major modifications to the approach flow systems with new pumps, upgrade of three existing headboxes and the hybrid former, as well as a new 2-layer PrimeFlow AT headbox with the latest state-of-the art dilution water CD profiling for better high-end product quality
  • New press section with two PrimePress X shoe presses for gentle, energy-efficient dewatering and bulk savings at higher dryness
  • Rebuild of the pre-dryer section with PrimeRun web stabilizers for improved runability
  • Upgrade of two under-machine pulpers in the area of the press and pre-dryer section
  • Complete adaptation of the automation system to accommodate the scope of supply
  • Machine clothings for the complete scope of supply
  • Assembly, start-up and production assistance

The board machine KM3 has a design speed of 800 m/min and a wire width of 5 m. It produces folding boxboard (chromo duplex quality) with 230-450 gsm.

ANDRITZ will also adapt the automation system of the stock preparation lines for board machines KM2 and KM3 in Frohnleiten. The upgraded automation system will enable high equipment availability as well as fast and easy operation and maintenance. The modifications will be made in several stages, with final completion planned for 2022.

Mayr-Melnhof Karton is Europe's leading board producer. With a capacity of 540,000 t/y recycling board, the mill in Frohnleiten, Austria, has the highest production capacity in the European cartonboard industry.


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