Wash press for Holmen Paper’s Braviken mill in Sweden

Valmet is delivering a wash press to Holmen Paper AB’s Braviken mill in Sweden with start-up expected in April 2024.

The order includes TwinRoll washing press, electric motors, mechanical erection, basic engineering, commissioning, startup, process support and advisory services.

Holmen Paper’s production manager at Braviken, Fredrik Bragsjö, commented: “The TwinRoll wash press will improve the separation between the thermomechanical pulp (TMP) mill and the paper machine.

“With a better separation we believe the paper machine will get a cleaner system, resulting in improved runnability and savings of chemicals, such as retention aid and similar chemicals. The good experience from the earlier installed TwinRoll wash press together with the possibility of common spare parts were also influencing our decision.” forming section, an IQ Dryness Measurement, a press section rebuild, an IQ Steam Profiler and a coater section rebuild with an

OptiDry Coat and an IQ Induction Profiler.

After the rebuild, the PM1A will be capable of producing high quality solid bleached board (SBS), folding boxboard (FBB), art board grades (ART) and cup board (CUP) for consumer packaging with basis weights from 180 to 420 g/sqm. The wire width of the machine is 3,760 mm, and the machinery has been designed for a production speed at reel of up to 600 metres per minute.

When the PM1 was rebuilt in 2018, it was designed for 160,000 tons per year, and ITC Limited has been able to produce 200,000 tpy. After the rebuild, it will be able to produce 225,000 tpy.