• Environmental solutions
• Process improvement
• Maintenance services
• Production support
• Roll services
• Spares and process parts
• Recycled fiber
• Stock preparation
• Paper machines
• Board machines
• New lines
• Approach flow system
• Headbox
• Forming
• Pressing
• Drying
• SymDry
• TwinRun
• SymRun
• Impingement drying
• Runnability systems
• Heat recovery
• Sizing
• Coating
• Coating drying
• Calendering
• Reeling
• Parent roll handling
• Paper machine clothing
• Filter fabrics and services
• Automation
• Winding and roll handling
• Service centers

Runnability systems for dryer section

Metso dryer section runnability systems offer excellent sheet stability and runnability to all web grades and speeds. Runnability components are chosen based on the machine speed and paper grade.

HiRun System™ for high-speed paper machine runnability

The HiRun System™ runnability concept offers solutions for different requirements depending on the grade and the targeted speed. The system is designed with a separate high vacuum zone where paper is taken off the dryer cylinder. This high vacuum area ensures tail and web transfer from the cylinder to the next VacRoll and provides excellent runnability.

Main benefits of the HiRun System™, proven in production situations:

• Control of the web draws to optimize paper properties
• Fewer breaks due to reduced draws
• Improved web stability – higher production speed
• Faster tail threading
• Less sensitivity to changes in dryness
• Improved overall machine productivity

SymRun Plus runnability concept

SymRun Plus blow box is an energy efficient runnability solution for medium-speed paper machines and at the dry end of high-speed machines.


Main benefits of the SymRun Plus:

• Low energy consumption
• Reduced air amount
• Small supply air system and smaller space requirement
• Fast and reliable tail threading
• Easy maintenance

UnoRun ventilator

UnoRun ventilators work for ventilation in the bottom pockets in single-felted sections.

Main benefits of the UnoRun ventilators

• Improved runnability in single-felting
• Air balance in bottom pockets
• Disturbing air flows minimized
• Uniform ventilation across the machine width

Metso Pocket ventilator family

• TwinRun concept: For high-speed machines with special double-felted arrangement
• Uniflow pocket ventilator: For high-speed machines with conventional double-felting
• Uniflow B pocket ventilator: For board grades with conventional double-felting
  

  HiRun and SymRun Plus blow boxes helped UPM Schongau PM 7 to speed up by 50 m/min

   

  "We don´t have edge wrinkles anymore", says Josef Eder, Production Manager of UPM Schongau PM 7. Read more

  

  HiRun Blow Boxes improved paper quality on UPM Stracel’s PM 1

   

  “HiRun is a tool not only for improved runnability, but also for improved paper quality” says Pascal Bernard from UPM Stracel mill. Read more