Roxia Tower Press™ Pressure Filter Enhancing Talc Filtration
Mondo Minerals B.V. Vuonos talc production plant in Finland replaced the outdated filtration equipment with a Roxia Tower Press™ 16 pressure filter.
Products & SolutionsReplacing End-of-Life Equipment with Modern Filtration Technology
The Vuonos plant previously operated a pressure filter with a filtration area of 32 m². The filter had served the process for many years, but as it reached the end of its lifecycle, a replacement project was initiated. In addition to renewing the equipment, increasing capacity was identified as a clear additional objective.
“Replacing the filter was necessary. With the old machine, capacity could occasionally become a limiting factor, although not continuously. With the new filter, these limitations should no longer exist.”
– Hannes Holmström, Supervisor Concentration Plant, Mondo Minerals Vuonos
With the new Roxia Tower Press™ 16 filter, the filtration area increased from 32 m² to 38 m² while the equipment footprint remained unchanged. This was a significant factor in the decision-making process, as no competing solutions offering comparable capacity within the same footprint were available from other suppliers.
Roxia Tower Press filter TP16 at Mondo Minerals Vuonos talc processing plant.
Test Filtration Ensured Optimal Process Performance
Prior to the final supply decision, Roxia carried out test filtration trials for Mondo Minerals’ talc process. The objective of the tests was to determine the optimal filtration cycle and verify the targeted capacity as well as a consistently dry, high-quality filter cake.
The test results clearly demonstrated that the Roxia Tower Press™ would deliver a significant improvement compared to the outgoing, end-of-life equipment, both in terms of capacity and filtration performance.
Why Roxia Was Selected as the Supplier
Alternative solutions were evaluated, but Roxia was ultimately chosen as the supplier for several reasons.
Key decision factors included:
- Modern and highly advanced filtration technology
- Higher capacity within the same footprint
- Ease of maintenance and overall operational simplicity
“In many respects, this felt clearly more up to date compared to the alternatives. From a technology standpoint, Roxia had an advantage.”
– Hannes Holmström, Supervisor Concentration Plant, Mondo Minerals Vuonos
Turnkey Delivery and Smooth Commissioning
Mondo Minerals ordered a turnkey solution from Roxia, including the delivery, installation, commissioning, and operator training for the Roxia Tower Press™ 16 filter (38 m²). The project was completed according to schedule, and the filter was successfully commissioned without delays.
“Cooperation with Roxia was smooth throughout the entire project. Already at the design stage, it was clear that the work was being carried out by true professionals. The workmanship was careful, the automation and PLC user interface were excellently implemented, and commissioning proceeded without issues. At no point were we left on our own. Any matters were resolved together with an open and solution-oriented approach.”
– Harri Multanen, Development Engineer, Mondo Minerals
Maintainability is further supported by structural design features such as an upper service platform and easy access to the cylinders.
Increased Capacity, Improved Usability, and Better Maintainability
After commissioning, the Roxia Tower Press™ has delivered clear improvements to the process:
- Filtration area increased from 32 m² to 38 m²
- Significantly higher capacity within the same footprint
- Targeted filter cake dryness and thickness
- Efficient and reliable talc filtration
- Clear and user-friendly modern control interface and automation
“The increase in capacity is significant, and we are satisfied with the achieved moisture levels. The defined targets have been met. Operation is easy and clear. The automation is much more versatile than in the old machine, given the significant age difference between the units. The hydraulics and cloth guidance are like night and day compared to the previous equipment.
– Hannes Holmström, Supervisor Concentration Plant, Mondo Minerals Vuonos
Open Cooperation Toward a Shared Goal
“Cooperation with Mondo Minerals Vuonos was open and flexible throughout the project. We had a clear shared objective and worked systematically to achieve it, During commissioning, any changes and clarifications were addressed immediately. Overall, a very pleasant project.”
– Tero Penttilä, Project Manager, Roxia