On the 25th of October, Järvelä’s sawmilling line, which was completed in 1993, reached the production milestone of 5 million cubic metres of sawn timber. It’s really an astonishing figure: If all of that sawn timber measured 50 x 100 mm, it could circle the world 25 times! Nearly 11 million cubic metres of spruce and pine logs were used to produce that volume of sawn timber.
An impressive amount of by-products has also been
produced: one million solid cubic metres of bark for power plant, one million
solid cubic metres of sawdust, e.g., for chipboard manufacturing and 3 million
cubic metres of pulp chips. And even though Koskisen has had, in the course of
its more than 100-year history, several different sawmills throughout southern
Finland, its current sawmilling line has managed to produce more timber in 23
years than all of its previous sawmills put together.
The current sawline was built next to the old twin-line frame sawmill, with production running on the old sawline the entire time. The main machinery for the new sawmill was supplied by nearby companies: the debarking machine by Valon Kone (VK), located in Lohja, and the actual sawmilling machines by what was at the time Ahlström Sahakone (today Heinolan Sahakoneet), in Heinola.
Through the years, the line has been upgraded several times, but some of the original equipment is still in use. For example, the chipper-canters and first circular saw are original, meaning close to 50 million logs have gone through their blades!
The new sawmill faced construction challenges as a result of the bankruptcy of Rakennus-Haka, the company that had been building the sawmill’s production hall.
The Järvelä Sawmill was originally designed to produce roughly 200,000 m3 of sawn timber annually in two shifts. In recent years, it has been running in three shifts, and this year a new production record is around the corner: annual production is already close to 320,000 m3! Blade technicians Petri Eskelinen and Reijo Rimpilä, packager Rauno Lilja, plank sorter Timo Siira, sawyer Timo Tossavainen and electric maintenance personnel Timo Kekki, Timo Tuovinen ja Martti Väilä have worked on the current sawline since the beginning.