OptiCalender Metal Belt

Sappi Maastricht: Extremely good quality with new 3-layer headbox and metal belt calender

Valmet’s unique three-layer headbox and metal belt calender have helped Sappi Maastricht to produce outstandingly white and bulky board, with excellent printability and surface properties.

CMPC and Valmet in partnership: True shared journey

Strong partnerships are built on people. “We work as one team and have built many personal relationships over the years,” says Jorge Aldana, Director of Project and Industrial Development at CMPC Papeles. This is a story about people working together towards a common goal. CMPC Chile describes it as a strategic partnership with Valmet.

Metsä Board Simpele: A 10-year journey as an industry benchmark

The revolutionary metal belt calendering technology has opened up doors to success for Metsä Board Simpele mill. It has converted the mill into a benchmark in the folding boxboard industry.

OptiCalender Metal Belt & R&D: Valmet’s Mika Viljanmaa receives Marcus Wallenberg Prize 2012

During a ceremony in Stockholm on October 1, 2012, the Swedish King, His Majesty Carl XVI Gustaf awarded the Marcus Wallenberg Prize 2012 to Mika Viljanmaa, Valmet, for his ground-breaking development of metal belt calendering technology.

How about saving millions? - Zhuhai S.E.Z. Hongta Reheng Paper

Paper and board makers have been focusing their attention on increasing their output in tonnes. A paper machine is not considered to be functioning well if its output in tonnes drops, even if this is due to improved bulk and reduced use of fibers. Environmental considerations and cost competition are forcing to rethink the processes. Boxes are not made of tonnes but board sheets.

Calender roll covers

Targeting long grinding intervals and smooth surface quality? Valmet’s calender roll covers provide longer service intervals and optimum paper or board properties. Besides providing better marking resistance, our calender covers allow much higher speeds and temperatures without damage than conventional alternatives. For paper and boardmakers these factors mean quality. Let Valmet help you to run with the most suitable cover for your calender.

Five questions that will help maximize roll cover effectiveness

Roll cover decisions are complex; the prices, performance characteristics and cover lifetimes vary considerably. Answering these five questions can guide papermakers in making a better choice among today's wide range of roll cover technologies.

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.

Doctoring products

Doctoring affects machine runnability, paper and board quality, production costs, and production efficiency. Runnability can be improved by optimizing doctoring parameters and blade materials. Cleaner rolls result in better end-product quality. The blades can be selected to meet customers shutdown schedule which will lead to fewer blade changes resulting in lower blade costs. The reduction of unplanned shutdowns and costly downtime periods can be avoided by reliable and trouble-free doctoring....

Tail threading

A reliable tail threading process decreases tail threading times, minimizes waste and improves safety. This means an investment in your process is an investment that pays for itself. Whether you need improvements in paper or board machines, we have an advanced tail threading solution that clearly enhances your production efficiency. Our comprehensive range of tail threading services, from preventive maintenance to tail threading study secures optimal operation of your equipment and reduces threa...

Automation for Board and Paper