Valmet has deployed its new aqua cooling calendering technology at Stora Enso Ingerois Board Mill’s facility in Finland.

With this installation, Stora Enso intends to modernise the precalender of its BM 4 board machine, which would in turn improve the quality of the board, as well as lighten it without compromising its features.

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BM 4 is used in manufacturing folding boxboard, which is supplied to the consumer packaging industry.

"This brings significant energy and raw material savings throughout the value chain of the product."

The aqua cooling technology was successfully used in production for a few months.

This technology enables in reducing the basis weight of the final product at BM 4 while maintaining the functional and visual properties of the board.

Stora Enso Ingerois Board Mill director Taisto Nevalainen said: "This brings significant energy and raw material savings throughout the value chain of the product."

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Valmet paper mills business unit development manager Mika Viljanmaa said: "Cooperation with Stora Enso was excellent from the very first contact to the start-up and the whole process was exceptionally fast.

"Using the new aqua cooling equipment in practice has confirmed the earlier results from our pilot machine. Installation of the equipment itself went well, and thanks to its compact structure, the equipment fits in perfectly despite the narrow space available."

Last month, Valmet announced that it would deliver a high-consistency bleaching system to Rottneros pulp mill in Sweden.