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Headbox

An optimal selection of board and paper machine headboxes to meet various production requirements and to match different applications for high-quality paper and board. Learn more about Valmet OptiFlo headbox offering.

Improve quality

Quality issues are high on the agenda of every paper and board mill, as optimal quality needs to be produced at the lowest possible cost. Valmet offers a wide scope of solutions and services for better end-product quality, from stock preparation to finishing. Stabilizing running processes in all phases of the process leads to cost-effective quality improvements that do not require major investments. We and our customers share the same targets: optimal quality at the lowest possible cost, consistently in all shifts.

Stock preparation for molded fiber production

Achieving high-quality molded fiber products starts with an optimized stock preparation process. Valmet's solutions for pulping, screening, cleaning and refining are designed to help molded fiber manufacturers produce consistent, high-quality products while ensuring smooth, efficient operations.

Conversion to new grade

The world is changing fast; the consumption of newsprint and printing/writing papers is decreasing. The consumption of containerboards or cartonboards are rapidly increasing due to the e-commerce. An old paper machine can be updated with a grade conversion rebuild to produce more profitable products like containerboards, cartonboards or special papers.

Increase capacity

There are several ways to increase the production of a paper or board making line. The paper machine's efficiency can be improved for example by decreasing the number of breaks and shortening the break time. Drying capacity can be found to be a bottleneck. Drying capacity can be increased by solutions that maximize drying efficiency with minimum energy consumption. Machine speed can be limiting production, too.

Contact our packaging & paper machine experts

We are here to help! For more information, please answer the below questions first. One of our packaging & paper machine experts will be pleased to contact you.

OptiSizer Spray sizing

In surface sizing, the size is sprayed on nip rolls through a row of spraying nozzles. Then, the size  is transferred to the web in the nip. You can control the amount of size accurately and fast, and there are no consumables due to contactless application, which leads into decreased downtime.

OptiSizer Hard sizing

OptiSizer Hard is uses higher nip loads to improve sheet strength properties by taking advantage of better starch penetration and decreasing fiber to fiber distance.

OptiSizer Film sizing

OptiSizer Film offers a functional and innovative design, based on know-how and long experience. Its simple and reliable design results in easy operation, installation and fast initial start-up.

New opportunities with Valmet sizing

The R&D work did not stop after the first OptiSizer Hard was started-up. It was seen as a good place to improve further. There have been a number of pilot trials and the results with a new application method and a new concept combining OptiSizer Hard and OptiCalender Metal Belt seem to be clear.