Metsä Board set to upgrade KK1 at Kyro mill

Valmet has confirmed it is set to supply new reel and winding technology and surrounding equipment for Metsä Board’s Kyro mill in Finland. In the rebuild, a new reel and winder with an automatic transfer rail connection will be installed to modernise the board machine KK 1. The start-up is scheduled for the second half of 2021.

“Metsä Board’s Kyro mill produces high quality coated folding boxboard and the new eco-barrier board. We wanted to modernise the boardmaking finishing area and eliminate bottlenecks to meet capacity needs,” says Jarno Lehtonen, Project Manager, Metsä Board.

Valmet’s delivery will include two Broke Pulpers and an OptiReel Linear with center drives to minimise caliber loss. The reel is followed by automatic transfer rails and an OptiCart Stream parent roll cart with integrated loading. The new high-capacity OptiWin Drum two-drum winder will be equipped with a Dual Unwind two-unwind system. This feature makes it possible to change the parent roll in only one minute giving more capacity. The Dual Unwind sequence is fully optimised and independent of a crane. The delivery will include a Valmet DNAmachine control system. Safety will be improved by increasing the automation level.

KK 1 with a reel width of 3,450 mm produces folding boxboard grades with a basis weight range of 170-380 gsm. The design speed of the new parts will be 800m per min.

Left to right: Ari Kiviranta, Mika Sainio, Jarno Lehtonen, Marko Heikkilä (all from Metsä Board), Marko Korpinen and Sami Anttilainen (Valmet).

 

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