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Press felts

Press felts and fabrics by Valmet

The role of press felts is to prevent marking from roll grooves and holes, even out the pressure changes in the nip, ensure uniform pressure distribution and excellent dewatering, absorb vibration in the press, give smooth surface for the web and transfer the web through the press section.

Press felts, like forming fabrics, play an important role in the end quality of the produced board and paper. Valmet’s press felts provide excellent machine runnability, high sheet dry content after press section, fast start-up, are marking-free and contribute remarkably to improved paper properties.

Valmet press felt offering:

Press felt offering 

Valmet Press Felt TMO and Valmet Press Felt SMO

  • for efficient pressing and excellent sheet transfer
  • for improved sheet smoothness
  • for high dry content
  • for good start-up and water removal
  • for excellent profiles
  • for good overall runnability
  • SMO style with seam

 

Valmet Press Felt TSM (earlier known as TamSeam)
  • safe and easy installation
  • non-marking seam
  • good resistance against compaction and filling
  • good water handling capacity

Valmet Press Felt EMX (earlier known as EcoMax, Laminet and PoroStar)
  • fast start-up 
  • stable run
  • good dewatering
  • long and reliable service life
  • less runnability problems
  • good sheet quality

Valmet Press Felt ECM (earlier known as EcoMaster and EcoAqua)

  • high smoothness
  • no base weave marking
  • fast start-up
  • incompressible structure
  • good paper profiles

Valmet Press Felt ECS (earlier known as EcoStar, EcoStream)
  • high smoothness
  • no base weave marking
  • excellent water handling capacity
  • excellent compaction resistance
  • uniform pressure distribution and thus good paper profiles
     
Valmet Press Felt TSR (earlier known as TamBat, TopStar, TriStar and StreamStar)
  • stable run
  • good dewatering
  • planned service life
  • flexible structure
  • versatile designs - easily adjustable for a variety of positions
     
Valmet Press Felt AQ (earlier known as AquaMaster, AquaStar)
  • fast start-up
  • strong continuous nip-dewatering
  • very good dimensional stability
  • easy installation
     

Articles and references

Improving press performance step by step

Improving press performance step by step

After a four­phase improvement project, Thai Cane Paper enjoys lower steam consumption, better runnability, higher paper dryness, longer felt lifetimes, and vacuum energy savings in its PM 2 press section.

Stable performance with Valmet Press Felts

Stable performance with Valmet Press Felts

Press felts are key in successfully removing water in the papermaking process. Overall, they play a very important role in the machine’s performance, especially in terms of runnability. In press felts, small things make the difference. Valmet’s press felts are known by their profiling and special treatments.

A rolling stone gathers no moss

A rolling stone gathers no moss

In addition to offering high-quality paper machine clothing, Valmet’s target is to walk along the customer all through their production process. This has been noticed at Schoellershammer PM 5 as well.

Start-up with Valmet paper machine clothing

Start-up with Valmet paper machine clothing

Valmet supplied paper machine rebuild for Stora Enso's PM3 in Varkaus started up successfully. The mill feels that a single point of responsibility is beneficial, as there are fewer players and thus fewer overlaps in the start-ups.

Valmet Press Felt SPM for demanding conditions

Valmet Press Felt SPM for demanding conditions

Valmet’s SprintMaster press felt is designed for demanding paper and board machine conditions. It provides great savings potential with improvements in runnability, dry content, start-up, lifetime and energy consumption.

Save costs by optimizing water removal

Save costs by optimizing water removal

Water removal at the forming or press section is significantly cheaper than at the dryer section. Since removing one liter of water from the sheet at the dryer section costs five times more than at the press section, it pays to optimize dewatering at an early stage.