Paper machine rebuilds offer ways to remove production bottlenecks, reduce production costs, improve operating safety, save energy, or add new grades with paper machine conversion. A rebuild involves rebuilding parts of a paper or board machine using different components with the aim of improving the process or end products. Valmet has the right tools for paper machine rebuilds, including experience and expertise so you can meet your targets for the rebuild.
New machines vs Rebuilds
If you have the choice between buying and rebuilding an old paper machine to your specifications or building a brand new machine, what should you consider?
The basic rule of thumb is that a rebuild will always be much more demanding than new installation. An old machine, even if it’s only 10 years old, comes with limitations. It will take more time, money and engineering to ensure that the old and new components work well together. Meeting the start-up curve will take longer time. Conversely, a new machine is a pre-tested whole that is designed to work in unison.
A rebuild involves rebuilding parts of a paper or board machine using different components with the aim of improving the process or end products. Rebuilds can improve productivity, quality and efficiency, and they can enable you to produce different grades. They can also help your company reach strategic business goals, including measures to improve market position, to meet new market needs or to match a competitor’s capacity and/or quality. In the current market, common rebuilds are grade conversions of printing and writing paper machines.
Why consider a Rebuild?
Rebuilds can improve productivity, quality and efficiency, and they can enable you to produce different grades. They can also help your company reach strategic business goals, including measures to improve market position, to meet new market needs or to match a competitor’s capacity and/or quality. In the current market, common rebuilds are conversions of printing and writing paper machines.
It is worth ensuring that the technical and process goals of a proposed rebuild will also meet the business goals. The good news is that whatever the requirement, there are many options and possibilities to improve both your machine and your business.
Papier- und Kartonfabrik Varel is reaching for an annual production capacity of one million tons of corrugated board during the next few years. To further improve the performance of its PM 4, it invested in Valmet’s state-of-the-art winding technology.
"Just plug and play, start the systems, and get extraordinary good quality out of the PM34." , said Thomas Gehring, Mill manager at Ahlstrom-Munksjö Dettingen Mill after successfull wet end rebuild of their PM34.
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.
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.
What do you want to achieve with your rebuild?
There are many options and possibilities on how to improve both your machine and your business through a rebuild. Read more about these options below.
Valmet's working environment improvements aim to ensure safe working conditions for all paper mill employees. Our working environment improvements consist of such items as dust and humidity control and indoor noise reduction solutions for cleaner and healthier machine hall air. The user-friendly engineering and innovative solutions further improve operator safety and thereby help to make machine maintenance and cleaning easier and more efficient.