Refurbishment, Expansions & Modernisation

  • Professional filter refurbishments, as good as new!
  • Expand your filter & get higher capacity with minimal investment
  • Extend and improve reliable filter operation with modernisation

Professional service

Would you like to refurbish a filter and get it to its original condition? Expand your industrial filter and increase its capacity and volume? Go one step further and modernise your system? Look no further, we are here to help! Our solid-liquid separation expertise is based on professional filtration knowledge and practical experience gathered through more than 40 years. We can help filter users achieve more reliable operations with lower costs and improved performance.

Detailed Project Planning

Any kind of shutdown affects time and money. We know that and compose a detailed project plan to keep the shutdown time to a minimum. We go above and beyond to serve you and be the best.

Onsite filter inspection-Roxia

Shortest possible necessary downtime

Professional project planning

Efficient project execution based on practical experience

All filter parts are available and ready

Auxiliary equipment check & sizing

Filter Refurbishment

Industrial filters are durable and can operate for not only years but decades. That said, from time to time they need some retouching to return the old equipment into its original state. We have strong experience with filter refurbishments all over the world. The work can be done either onsite or offsite – we adapt to your needs. All spare parts are of high quality, selected with attention and installed with utmost precision.

We refurbish the following filter types:

  • Filter presses (horizontal)
  • Tower presses (vertical)
  • Ceramic disc filters

Work in process of one of the many tower press filter refurbishments projects we handled.

Filter Expansion: Tower Press and Filter Press

We refurbish the following filter types:

Many plants decide for filter expansion to increase its capacity and production volume. By adding more filter plates you can improve the filter’s performance in a relatively short time.

  • Which filters can be expanded?

Mostly, we work on Tower Press filters and Filter Presses with an expansion option.

Roxia handled a filter press refurbishment at Boliden Kokkola. Image was taken after the modernisation.

Adjust Auxiliaries to the Expansion

Before any filter expansion, have a closer look at the filter auxiliaries. If you are planning to increase the production volume, you should make sure that the auxiliary equipment will be able to handle the bigger volume. We do it all for you:

  • Make sure that the rest of the process will be able to handle the expansion
  • Check the sizing of the existing auxiliaries: feed pumps, air compressors, slurry tanks, conveyors …
  • Recommend and supply necessary equipment upgrades

When Old Meets the New

Expanding a filter is an elegant way to get a bigger filtration area and higher capacity. But when combining old and new equipment, compatibility is another important aspect. We have expert knowledge and make sure that all new parts are fully interchangeable with the existing ones.

Modernisation of Dewatering Equipment

Modernising existing filter units bring lots of advantages. With minimum effort, you can modernise the existing filter or other dewatering equipment and reach better efficiency, capacity, safety and more. We are knowledgeable, passionate and trustworthy partners. To find out more from a first-hand experience, read the case study from Boliden Kokkola’s zinc smelter.

Roxia filter modernisation examples:

  • Upgrading filter’s automation system
  • Improving filter’s and operator’s safety
  • Installing new systems with latest technology:
    • Hydraulic system
    • Automation control system
    • Cloth drive unit and cloth tracking system

We modernise the following filter types:

  • Filter presses (horizontal)
  • Tower presses (vertical)
  • Ceramic disc filters

Let’s talk and find the best solution for your business!

  • Select your location

  • Select field

Contact us

If you have something on your mind, just let us know! We are more than happy to answer all your inquiries.


Danie Groenewald

Area Sales Manager South Africa

+27 10 590 8374

Kauko Tanninen

President, Russia & CIS

+7985 226 14 91

Russell Beaumont

Senior Service Manager, Filters Australia

+61 408159305

Ettienne Joubert

Sales Engineer South Africa

+27 (0) 81 030 1015

Sun Lin

Area Sales Manager, General Manager China

+86 21 52679628

Lyle Henson

Environmental Technologies Sales Manager North America

+1 443 695 9510

Dan Stenglein

Sales Director North America

+1 667 500-2591

Ronald Gaspar

Technical Service Manager Peru, Colombia

+51 9 7973 5424

Maureen Brown Briceño

Sales Manager South America

+56 9 7740 0878

Yury Beloborodko

Director, Filtration MMM & CEEC Russia & CIS

+7 921 959 46 20

Sergey Petukhov

Technical Director Russia & CIS

+7 495 726 57 41

Don Kitchen

Filter Spares Sales & Service Manager North America

+1-410-636 2250

Jesse Saira

Area Sales Manager Nordic and Baltic Countries

+358 44 276 2338

Dirk Otto

Sales Director Central Europe

+49 (0) 2102 420 707

Victor Ortega

Area Sales Manager Asia Pacific

+61 499 156 590

Juho Uusitalo

Area Sales Manager Eastern Europe

+358 40 680 4396

Kimmo Angeria

Head of Field Services, Industrial Automation

+358 400 104 977

Eduardo Paredes

Sales Director South America

+56 994 991 561

Markus Saloniemi

Director, Industrial Automation

+358 40 571 9520

Fernando Henriquez

Sales Director Peru


Petri Kiljunen

Petri Kiljunen, Regional Director, Middle-East and Mediterranean