Outstanding performance and retained bulk with belt-bed winding

OptiWin Belt belt-bed winder

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OptiWin Belt features the belt-bed winding method, which is renowned for its outstanding performance and unrivaled roll quality. Belt supported winding is advanced two-drum winding for demanding grades, such as coated board, LWC and release grades.

High capacity

Compact size

Quick installation

Controlled nip load

Unique winding method

With OptiWin Belt, rolls are wound on a driven belt-bed and a rear drum. As the roll diameter increases most of the roll weight is transferred to the belt-bed. Proper nip load distribution between the belt-bed and rear drum is controlled by maintaining an appropriate winding angle and belt tension. This control of excessive nip load retains bulk and prevents roll defects such as crepe wrinkles, uneven gloss, and mottling. Controlled nip load is highly important with high-density grades. 

Winder installation and start-up take only a minimum of time, since the wind-up frame is one complete unit and belt-bed tests are carried out during workshop assembly.

OptiWin Belt offers the broadest operating range of winding force (the peripheral force exerted by the belt-bed to the set), which is used as the primary tool to control the roll structure. Winding force together with controlled nip loads allow accurate roll hardness control and ensures superior roll quality.

Want to talk to our winders and roll handling experts?

Want to talk to our winders and roll handling experts?

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.

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Automation to your needs

OptiWin Belt’s automation level can be tailored according to each mill’s needs. The winder can also be equipped with Continuous Winding for fully automated winding performance that allow one-man winder operation.

We invite you to carry out your winding trials at Paper Technology Center. All winding technologies can be tried out with your own paper or board.

Valmet´s famous WinDrum Pro, WinDrum, WinDrum Compact, WinBelt and pulp winders are now available under the renewed OptiWin winder family.

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Video: Behind the scenes of 1000th Valmet winder

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Interested in pilot trials?

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Read our latest customer success stories about Valmet OptiWin Belt deliveries

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.

Increased winder capacity through optimized set change and gluing

Dec 11, 2018

When Steinbeis Papier in Glückstadt, Germany, started to develop papers for high-performance inkjet printing, they needed to make sure their winder was up to the challenge. They turned to Valmet to improve the winder set change time.

Learn more about the services and automation solutions for winders

Slitter management

Slitter management at board and paper machines was developed by Valmet to help our customers overcome winder problems such as poor slitting equipment condition, poor quality blades and bands, dull blades and bands, hand injuries and insufficient operator slitting process knowledge and abilities. Valmet Slitter management brings slitting best practices to your winder. Our services and technology include state-of-the-art blade design and materials, sharpness techniques, safe and easy slitter chan...

Winder drum covers

Valmet’s soft roll covers for winding applications provide good wear resistance and durability for high speed winding, resulting in long running times and high production levels. The hard thermal coatings for winder drums are even applicable on-site, with no need to remove the drum from the winder.

Roll maintenance

Valmet’s modular maintenance service solutions consists of roll maintenance, roll reconditioning, and roll upgrade services. These solutions help board and papermakers achieve maximum performance with transparent and consistently high-quality maintenance services.

iRoll technology

Valmet iRoll technology improves production efficiency and product quality by assuring optimal runnability of board and paper machines. Papermaker can obtain significant cost savings by improved nip profiles, parent roll hardness profiles and tension profiles as well as printer and converter satisfaction.

Winder Diagnostics for board and paper machines

Valmet Winder Diagnostics gives detailed insights into your winding performance, helps to avoid unplanned stops, and increases the overall end-product quality.

Winder improvements

Our winder solutions improve production or maintenance efficiency and ensure good customer roll performance at the printing house or converting plant. The improvement process looks deeper into your winder to identify and solve known or hidden problems and to find opportunities for improvement.

Automation for Board and Paper

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