The Scandinavian art of tooling
Competence centres for toolmaking
Knowledge transfer between Sweden and Finland
The Swedish plant in Bromölla was the pioneer when it came to plastic tooling. Production started here as far back as 2012. Building up expertise was the work of Dan Olsson, a fountain of knowledge when it comes to ceramic production and at the time the Swedish counterpart of Johan Malmsten. He was only too happy to share his years of valuable expertise with the team in Finland, and also helped to set up the competence centre in Ekenäs.
In the medium term, the goal is for the two Scandinavian plants to produce all pressure casting moulds required for ceramic production across the entire Group.
The advantages of pressure casting
Pressure casting has two key advantages compared to traditional ceramic production. Firstly, much larger numbers can be manufactured as water is pressed out of the slip under pressure and the porous plastic moulds don’t have to dry – in contrast to plaster moulds. Secondly, plastic moulds can also be used much longer than plaster moulds. “In contrast to plaster moulds – which reach the end of their service life after 80 to 100 green bodies have been produced – plastic moulds have a lifespan of 20,000 to 40,000 castings,” comments Johan Malmsten.