Trend towards lower basis weights, higher speeds, lower-grade raw material, closed production cycles, and demands for further improvements in printability place special demands on press section configurations. Valmet’s press section solutions are designed to ensure the consistent levels of efficiency required for high quality and runnability.
Discover Valmet press section solutions
Get to know our press section product family OptiPress press sections. Click on the link below to read and find out more of our press section solutions.
The task of the paper machine press section is to remove water, primarily through wet pressing. Wet pressing increases sheet dryness in order to ensure adequate paper machine drying capacity and to improve web runnability at the beginning of the dryer section. The press section also has a major impact on sheet surface properties such as roughness and absorption, and indirectly also on bulk.
Shoe press for improved runnability and capacity increase
Shoe press technology has been used successfully in board and paper production for many years. Valmet’s SymBelt shoe press significantly improves quality and adds dewatering capacity in the press section with fewer press nips. The resulting high dryness gives high wet web strength, which is important in minimizing breaks in the open draw to the dryer section.
If you wish to get further information like technical specifications, need a quotation, or wish to discuss different solutions, fill in the contact form and our experts will contact you shortly.Contact our experts
Wet end pilot trials
We offer the opportunity to experiment and develop paper and board products and processes at Valmet Paper Technology Center without having to put your own production on hold. This is very cost-efficient compared to expensive tests in your own production. You can follow the activities in the trials on site or remotely through live streaming cameras.
Valmet Paper Technology Center provides the world's most comprehensive offering of testing and piloting services to paper and board manufacturers worldwide. Our pilot facilities have the entire process covered, from stock preparation to coatings and everything between, providing customers with excellent service and reliable results to support investment decisions.
OptiPress Linear, a double-nip press section with shoe press and a linear web run, is an ideal solution to fulfill papermakers’ requirements for effective wet pressing. Runnability bottlenecks have been removed with intelligent design - using shoe press technology, full-width tail threading, and having no open draws.
Center roll based press section is a reliable, well-known concept combining close to 40 years of pressing technology experience with modern shoe press technology. A shoe press replaces a roll just before the first open draw. The resulting boost in dryness thus fully benefits web runnability in the open draw.
Metal belt technology
Pressing with metal belt technology boosts production capacity by eliminating unsupported open draws. It also increases the dry content after the press by up to 6 % due to more effective water removal at the press nip and evaporation over the hot metal belt. Furthermore, it improves several end product qualities, such as strength and porosity.
Wet end rebuilds
Rebuilding a paper or board machine, or a section of it, can improve the competitiveness of your business and your processes. But where do you start? Over the years, we have gathered plenty of experience and expertise in rebuilding all kinds of machines. We asked our experts to provide tips, advice and industry insight to help you demystify the rebuild process and created a practical guide book.
Download our e-book to learn how to develop a winning rebuild concept, how to minimize rebuild related risks, and how to ensure smooth ramp up to full production.
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.
Pratt Industries PM 17: Expert training delivers a flawless start-up
Aug 5, 2020
Pratt Industries started up their new PM 17 board machine in 2019 at Wapakoneta, Ohio. The start-up was a great success thanks to both extensive training and the unique opportunity to train their personnel on exactly the same type of OptiConcept M line at Pratt’s PM 16 machine in Valparaiso, Indiana.
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.
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.
Even thinner label papers thanks to new metal belt at UPM Tervasaari PM 8
Apr 9, 2015
UPM Tervasaari PM8 press section was rebuilt with a new metal belt technology that closes the draw between press and dryer. The competitiveness of their label papers is now improved due to better efficiency of the paper production and material usage.
With an improvement process you can reduce your cost per tonne produced through savings in raw materials, energy, and maintenance costs. We offer a variety of customized solutions that will improve the dry content of the pressed sheet, solve runnability problems, and address a variety of press section issues.
Valmet's press felts are always tailor-made to the specifications of each individual board and paper machine and position: paper grade, furnish, speed, dimensions. The proven world class press felt manufacturing technology ensures that our press felts respond to the highest customer expectations. High quality Valmet Press Felts deliver results in terms of lifetime, energy savings, sheet dryness and reliability.
Shoe press belts
Valmet Black Belt is a unique shoe press belt made of high performance elastomer material reinforced with dimensionally stable synthetic yarns. The belt is available in different reinforcing structures and surface options to fulfill the demands of every shoe press. Black Belt is wear, chemical and heat resistant which ensures long and trouble free running.
Workshop and roll services
How does your business sound like? Hopefully, there are no roll related vibrations, annoying production breaks or disturbing shutdowns. Valmet Workshop and Roll Services offer a winning combination of the latest roll technology and maintenance expertise. We help you eliminate unplanned shutdowns, increase the running times of rolls, improve the end product quality and lower the roll maintenance costs in long-term.
If your target is to produce a uniform, high-quality web, having a clean machine is essential. Our family of cleaning devices helps you to keep your fabrics and rolls clean during production. The benefits of effective cleaning are reduced break and a more stable process. Our cleaning solutions are easy to operate and maintain, and they are adjustable for a variety of cleaning needs. They are also environmentally friendly as there is no need to use cleaning chemicals.
State-of-the-art software for ultimate quality control
The most important task of the controls and optimizations is to provide the capability to produce stable quality efficiently at economical optimum. Valmet IQ Applications are the core of the system with clear user interface and intelligent control applications which allow you to manage the machine line performance. Efficient user experience gives a clear view of process performance and product quality, at all times.