Rudus Oy, part of the international CRH group, produces a range of aggregate products at its Kulmakorpi quarry in Espoo, Finland. The products are both for the concrete and construction industry as well as for private customers.
At the Kulmakorpi site, Rudus excavates the rocks to produce aggregates and the city of Espoo then utilizes the excavated area to landfill topsoil from building construction sites. One area has already been excavated and is in the process of being filled, and Rudus is moving the equipment to a new spot in less than a year.
Removing bottleneck in crushing process
In 2017, the entire crushing process at Kulmakorpi was analyzed in terms of capacity and throughput in a Metso SiteBooster™ plant optimization project. Rudus discovered that their current Metso FS302 screen was no longer meeting the capacity targets of the crushing process and was instead creating a bottleneck in the overall production process.
Metso’s solution was to replace the current screen with a complete Metso Nordplant™ screen module consisting of a Metso ES402™ horizontal screen and a new steel structure designed and implemented by Metso. The installation took place in autumn 2018 and Rudus is satisfied with the capacity increase, which has helped them to meet their targets.