OptiRun dryer

Excellent runnability and speed records

Valmet’s OptiRun dryer section portfolio is able to provide perfect solutions for all customer needs. OptiRun dryer sections use proven technology and have a great number of references, including many of the world’s fastest machines.

Excellent runnability and productivity

Uniform quality and profiles

Low life-cycle cost

Secure investment

The OptiRun dryer section family consists of four solutions that cover all dryer geometries, providing optimal drying capacity and excellent runnability. Each dryer section features UnoRolls, VacRolls and/or Edge VacRolls, depending on machine speed and paper/board grade, in order to ensure smooth tail threading, runnability and energy efficiency. OptiRun dryer sections are available with both steel and cast iron dryer cylinders.

Optimal geometry ensures total web support throughout the dryer section. Support after the press and efficient runnability components produce a high strain potential, low porosity, and improved internal strength. In addition to conventional geometry, these dryers are also available with a compact geometry. The benefits include energy savings thanks to using fewer fans, improved drying capacity due to the large cylinder wrap angle, and minimal sealing wear against roll/fabric due to minor fabric bending.

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Read more about the compact concept - a game changer for drying sections.

OptiRun Single - For single-fabric dryer sections

Excellent runnability and productivity thanks to total web support
Uniform quality and profiles
Secure investment and low lifecycle costs (steam, electricity, maintenance, etc.)
Available in conventional and compact geometries

OptiRun Double - For double-fabric dryer sections and groups

Double-fabric dryer groups boost drying efficiency by supplying heat to both sides of the paper
Available in conventional and compact geometries

OptiRun Hybrid - For dryer sections with single- and double-fabric dryer groups

Combination of single-fabric dryer groups at the beginning of the dryer section, followed by double-fabric dryer groups
Combines best features of single- and double-fabric groups
More compact dryer section with same drying capacity

OptiRun Triple - For triple-tier dryer sections and groups

Typical rebuild solution for adding drying capacity when space is limited
For heavy board grades and pulp machines with low speed range up to 600 m/min

Do you want to know more about Valmet's compact concept?

OptiRun compact concept is a game-changer in paper machine dryer sections. Ensuring good runnability, improved drying efficiency and excellent tail threading, this is the biggest change in drying section design in the last 35 years.

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Read our latest success stories about OptiRun dryer deliveries

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

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.

Aiming for net-zero with every decision – VPK Group’s grade conversion in Alizay, France

Sep 23, 2024

After successful collaboration in converting their Strasbourg mill in 2013, VPK again trusted Valmet with their grade conversion project in Alizay. Their paper machine now produces recycled lightweight containerboard grades with less emissions.

Closer is better – The Valmet compact dryer concept

Dec 5, 2023

Valmet’s OptiRun compact concept for paper machine dryer sections ensures good runnability, while delivering better drying efficiency and absolutely excellent tail threading. It’s the biggest change in dryer section design in the last 35 years.

Palm Aalen PM 5 – a sustainable investment for the next 50 years

Oct 19, 2022

PM 5 at the Papierfabrik Palm Aalen-Neukochen site in Germany is the world’s widest high-capacity containerboard line. It is an investment for the next 50 years and has been producing high-quality and sellable board since the start-up in July, 2021.

Low-carbon capacity with Jingui BM2

Oct 19, 2022

In 2021, APP Group successfully started up their new Jingui BM2 machine. The Valmet-supplied technology used in BM2 helps the company to meet its goals for low-carbon operations.

High expectations met with Kruger's grade conversion rebuild

Aug 16, 2018

The interest in lightweight linerboard is on the rise in North America. In response, Kruger decided to let Valmet convert their newsprint machine to board machine.

Differentiation through premium fine paper quality at APRIL Kerinci PM 3

Nov 6, 2017

Indonesia is a growing market for papermakers. APRIL has tapped this potential by investing in a new OptiConcept M uncoated fine paper line at the company’s Kerinci mill in Riau province.

Hands-on quality at Stora Enso's Beihai Mill

Oct 27, 2017

Stora Enso’s packaging board is truly a team effort: the result of focused production practices, reliable technologies, a passion for quality control and full supply chain traceability, and the quest for perfect printability and convertability. It all comes together at the Beihai mill site in China.

Learn more about the services for dryer section

Dryer fabrics

Valmet’s dryer fabrics are trusted by paper and board manufacturers to speed up drying rate, enhance paper quality and increase energy savings.

Dryer roll covers

Dryer section roll covers and coatings help to keep rolls and cylinders clean and protect surfaces from wear and corrosion in hot and humid environments. Choosing the right roll cover ensures good dryer runnability and allows savings in dryer fabric usage and doctoring.

Roll types

Planning a grade conversion?

The world is changing fast; the consumption of newsprint and printing paper is decreasing and the consumption of containerboards or cartonboards are increasing. An old paper machine can be updated with a grade conversion rebuild to produce more profitable products. Turn a new page for your paper machine with the help from Valmet.

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