OptiPress Linear

Double-nip press with linear web run

Wet pressing is a vital part of paper and board processing and benefits both runnability and quality. The ultimate target of wet pressing is to increase sheet dryness to ensure paper and board machine drying capacity and also to enable web runnability at the beginning of the dryer section. The press section also has a great effect on sheet surface properties. Valmet’s OptiPress Linear, double-nip press with linear web run, is an ideal solution to fulfill papermakers’ requirements for effective pressing.

Excellent runnability and high production efficiency

Outstanding end-product quality

Good moisture profile and high dewatering capacity

Potential for furnish optimization

Excellent end product properties, high dewatering capacity and good runnability

The operating performance of OptiPress Linear press section has proven that the design principles employed – no open draws, shoe press technology, and full-width tail threading – provide excellent end-product quality, high-level dewatering capacity as well as good runnability. This results in a press section where press-related runnability bottlenecks, such as open draws, are a thing of the past.

The closed web run significantly reduces web breaks and thus improves runnability. OptiPress Linear press section also provides very good paper and board quality with symmetrical sheet properties, good moisture profiles, excellent dry content, and high production efficiency.

Shoe pressing with proven SymBelt technology

A press section with two shoe nips provides superior quality properties at the desired bulk level. As a rule of thumb, the first shoe press nip controls the bulk, and the second press nip controls the dryness and bulk.

OptiPress Linear features SymBelt shoe press technology, which provides longer dwell times and higher press impulses that improve dryness after the press section. A high web dry content brings savings also in drying energy. The two straight press nips of OptiPress Linear produce a strong web and ensure good moisture profile in the web after the press section.

OptiPress Linear for containerboard grades.

The OptiPress Linear press section meets the huge dewatering capacity requirements of high-speed paper or containerboard machines. The concept can be applied to both new lines and rebuilds.

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Read our customer success stories about OptiPress Linear deliveries

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.

A 15-year collaboration has made Valmet an all-round developer for Liansheng Paper

Aug 12, 2021

During the past 15 years, Liansheng Paper has been deepening its cooperation with Valmet through several equipment deliveries to its sites in Changtai, Longhai and Zhangpu.

30% increase in recycled packaging production

Oct 7, 2019

Arkhangelsk Mill aims for competitive advantages after the rebuild of BM2. "We have a wide basis weight and end product format range for flexibility. We expect decreased costs and energy consumption: 15-20% heat savings, 8% electricity savings and 5% reduction in water consumption," says Alexander Tuvanof.

Optimal balance of scope, cost and time: Coated board machine of ITC PM1

Apr 16, 2019

“There is an increasing demand for packaging board in India and board has an important role in replacing plastics. We needed a trustworthy equipment supplier and technology which can convert raw material to a high-quality board in a cost-efficient way", says Sanjay Singh, CEO of ITC Paperboards and Specialty Papers Division.

Excellent quality fine paper produced with Asia Symbol Xinhui PM12

Jan 4, 2019

Asia Symbol Paper's two Valmet paper machines, PM11 and PM12 set a reference quality level for the global and Asian markets. Xinhui PM12 is equipped with the latest technology like shoe and blade forming technology to create a competitive edge for Asia Symbol in the future.

Exploiting novel technology for producing lightweight grades

Jul 25, 2018

"We wanted a papermaking line that produces lightweight containerboard at high speed and with very good stability,” says Liao Changlv of Zhejiang Jingxing Paper.

The 3rd life of a paper machine at Blue Paper after grade conversion

Jul 25, 2018

In big grade conversion rebuilds, customers always want to be on the safe side as far as risks are concerned. Because the designed forming section was first of its kind, the prototype was tested at the Paper Technology Center in Jyväskylä. With the promising results of the pilot tests, Blue Paper was willing to implement the rebuild with Valmet.

Stora Enso Behai BM 1: World-class liquid packaging board machine

Sep 18, 2017

With the new BM1 and BCTMP line, Stora Enso Beihai meets the growing need for safe food packaging board in Asia. Reliability and stability were the key aspects of the technology chosen.

New BM1 and fully modernized off-coater - Metsä Board Husum

Jan 18, 2017

Metsä Board's OptiConcept M is the most modern FBB machine in Europe. It produces sustainable food service boards, such as cups, bowls, and plates with high quality, brightness, and lightness.

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OptiPress Linear

Double-nip press with linear web run

Excellent end product properties, high dewatering capacity and good runnability

Shoe pressing with proven SymBelt technology

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