Fully automatic pressure filter

Roxia Tower Press™ (TP) is a fully automatic pressure filter excellent for any process that requires efficient solid-liquid separation. The design follows 40 years of respected experience in the field. Roxia Tower Press filter is a reliable production machine that delivers high performance over and over again. Vertical pressure filtration technology provides the following benefits:

  • Uniform cake formation in the horizontal chamber enable efficient cake wash and air drying.
  • High-pressure diaphragm pressing ensures a more even and drier cake.
  • A single and continuous cloth design ensures a fast and reliable cake discharge without operator intervention.

 

Complete filtration support

Roxia can also provide detailed analysis of process, filtration testing, equipment selection and sizing for this and other kinds of industrial filters needed for solid-liquid separation. Get complete service through the entire filter life cycle, modernizations, refurbishments, spare parts and maintenance support.


In addition to Roxia Tower Press™ filter, we also deliver complete solutions including the most important auxiliaries.

Roxia Tower Press filter is ideal if you need:

  • High production capacity
  • Dry cake
  • Clear filtrate
  • Efficient cake washing
  • Reliable cake discharge
  • Fully automatic operation
  • Safe operation and maintenance
  • Low water and energy consumption
  • Small footprint

Typical tower filter press application areas:

Mining, minerals processing and metallurgy

  • Industrial minerals slurries
  • Metal refineries slurries
  • Concentrate slurries
    • Iron
    • Copper
    • Zinc
    • Gold
    • Nickel

Chemical industries

  • GCC – ground calcium carbonate
  • PCC – precipitated calcium carbonate
  • Talc slurry
  • Titanium dioxide slurry
  • Kaolin slurry
  • Starch slurry
  • Silicates slurry
  • Soda ash slurry
  • Battery metals slurries
  • Fertilizers

Filtration Testing and Process Support

Testing the slurry is essential before choosing the correct filter type and size. In this way, we can ensure the best possible process performance and the most cost-efficient solution for each application. Filtration testing can be done on-site or in the Roxia filtration laboratory.

We only require a minimum sample of 20 litres of slurry or 20 kg of dry solids.

Obtained filtration test results:

  • Recommendation of the most suitable filtration technology
  • Optimal filtration parameters
  • Filtration capacity, kgDS/m²
  • Cake moisture
  • Filtrate clarity
  • Cake washing efficiency (optional)
  • Filter media recommendation based on test results

Enhanced Process with Smart Filtration

Roxia connects industrial filters to the Roxia Malibu online portal and enables remote monitoring of performance. With Smart Filtration, operators can analyse and optimize filtration process, increase production volume and detect failures before they even occur. All that can be done from anywhere with any computer, smart phone or other handheld device with internet connection.

Complete Delivery: Filter and Auxiliaries

In addition to Roxia Tower Press filter, we also deliver complete solutions for solid liquid filtration including the most important auxiliaries. All auxiliaries are selected to perfectly fit together. The goal is to ensure the best performance of the entire filtration operation.

  • Roxia TP filter
  • Filtrate pumps
  • Cake discharge conveyor
  • Manifold flush pumps
  • Slurry pumps
  • Feed slurry trash screen
  • Diaphragm pressing air compressor
  • Drying air compressor

Safety Features of Roxia Tower Press Filter

Safety interlocks integrated into the automation programme

  • Protect the operators and the filter itself from failures and unintended misuse.

Perimeter protection with safety interlocked doors

  • When any of the doors open, the filter automatically stops. This prevents access to the possibly hazardous areas during the filter’s operation.
  • See-through construction minimises the need to open the door and approach the filter.

Safe working at height

  • Caged ladder with fall arrest system.
  • Railings around the top maintenance platform.
  • Lifts for safe and ergonomic service of the plate pack area.

Safe use

  • Filter comes with a user manual including safety instructions for safe operation and working procedures.
  • Before starting to use the filter, operators and maintenance crew receive safety training.
  • The operator interface guides users to safe use during daily operation. It also includes warnings about possible safety threats.
  • Password-protected user roles secure critical filter parameters.
Roxia Tower Press filter's horizontal pressure filtration technology provides several benefits.

Easy and safe maintenance

  • Filter cloth change happens at only one access point outside the filter.
  • Filter design includes extra space around the filter and enables an easy approach.
  • Check and maintenance points are easily accessible and away from the most corrosive areas.
  • Included remote handheld unit for safe maintenance and troubleshooting.

Perimeter protection prevents access during filter’s operation, but leaves enough room for safe maintenance.

Technical data

Roxia Tower Press™ TP 60

Filter size (m2) 60 72 84 96 108 120 132 144
Filter volume with 45 mm chamber depth (m3) 2.7 3.24 3.78 4.32 4.86 5.4 5.94 6.48
Filter volume with 60 mm chamber depth (m3) 3.6 4.32 5.04 5.76 6.48 7.2 7.92 8.64
Frame size (m2) 72 96 120 144
Filter plates (pcs) 10 12 14 16 18 20 22 24
Length (m) 7.2
Width (m) 6.1
Height (m) 5.6 5.6 6.3 6.3 7.3 7.3 8.2 8.2
Wight (t) 66 69 75 78 84 87 93 96

Typical Performance With Concentrate Slurries

Material Cycle time (min) Capacity (kgDS/m2 h) Production with TP 60 144 m2 (t/h) Cake moisture (w/w%)
Fe 9 – 10 600 75 – 85 8,5
Cu 10 – 12 410 50 – 60 8
Ni 10 – 12 440 54 – 64 7
Zn 10 – 13 400 30 – 60 9 – 11
Tailings 10 – 15 150 – 250 23 – 33 13 – 18

 

NOTE! Slurry content and particle size distribution influences on performance. Testing is recommended in each case.

Air, Water & Electricity Consumption

Air consumption Contact us for more information
Water consumption Pipe flushing 40 -120 m3 / day Cloth wash water 29 – 52 m3 / day
Electricity consumption Continuous operation – approx. 80 kW Cloth wash station 45 kW

Learn more in our Knowledge Base

Whole Package of Filtration Solutions

We deliver complete solutions for dewatering, filtration and solid-liquid separation. Our filters are engineered for excellence and we offer the whole package of filtration solutions and services:

Detailed analysis of process and
filtration testing

Equipment selection and sizing according to the test results and practical experience

Optimizing filtration performance

Close cooperation and full support at delivery, installation and start-up for any Roxia industrial filters

Complete service through entire filter life cycle

Filter Selection

It is crucial to carefully choose reliable equipment which guarantees continuity of the production process. Incorrect filter selection can lead to increased productions costs, low-grade process results and poor overall performance of your production. Here is where our test filtration team steps in. We help you select and size the filter for your application. We make sure you meet your production targets within planned cost limits.

Roxia Tower Press (TP) is a fully automatic pressure filter for any process that requires efficient solid-liquid filtration.

Tower PressVertical Pressure Filtration Technology

Tower Press is a fully automatic pressure filter excellent for any process that requires efficient solid-liquid separation.

  • Driest filter cake
  • Single cloth with fully automatic cake discharge
  • Filtration area 60 – 144 m²
  • Production up to 85 t/hour

Smart Filter PressThe Least Labour Demanding Automatic Filter Press

SFP belongs to the next generation of filter presses: fully automatic self-cleaning filter. It delivers trouble-free operation without operator’s involvement.

  • Unmanned availability above 98 %
  • Low maintenance need
  • Filtration area 1,2 – 22,3 m²
  • Completely sealed for clean environment
  • Production up to 1 t/hour
Roxia Filter Press (FP) delivers fully automatic operation, advanced filter press technology and high capacity.

Filter PressHorizontal Filter Press Technology

Filter Press Delivers fully automatic operation, high quality filtration technology, superb performance and high availability.

  • Filtration area up to 2000 m²
  • Chamber volume up to 46 m³
  • Filtration pressure up to 30 bar
  • Production up to 250 t/hour
Applications (concentrates) for Roxia Ceramic Disc Filter (CD): iron, copper, zink, gold and phosphates.

Ceramic Disc FilterConsumes up to 90 % less energy

Roxia Ceramic Disc Filter requires low investment, delivers clear filtrate with dry cake and operates continuously with high capacity.

  • Clearest filtrate with lowest energy consumption
  • Continuous visible operation
  • Filtration area 15 – 120 m²
  • Production up to 200 t/hour
With Roxia filtration test unit we can get accurate insights into filtration parameters. Filtration experts can execute all tests on-site or in the laboratory.

Filtration Test ServicesFilter selection and production optimisation

Our filter test units simulate the operation of full-sized industrial filters. Based on reliable results, our filtration experts help you select ideal filter type and size or optimise existing solid-liquid separation process.

How do we improve performance?

See Case Studies

Installation and commissioning have gone as planned on all filters and did not have any significant impacts to the ongoing filtration process.

— Janne Korkiakangas, Project Engineer, Boliden Kokkola

New degree of automatic operation

Our Smart Filter Press™ (SFP) is a self-cleaning industrial filter with a small footprint. Do not let that deceive you! It can reach up to 10 times higher capacity compared to conventional recessed filter presses of the same size. Filtration happens in gasketed filter plate pack behind enclosed and interlocked doors without slurry sprays and no human contact with filter cake, filtrate or fumes.

Roxia Smart Filter Press has various new and innovative features including fully automatic cake discharge and trouble-free operation almost without operator involvement. Unique design of this sludge filter press has integrated smart self-monitoring system. This makes the SFP filter the safest and the least labour demanding fully automatic filter press at the market.

Applications for Roxia Smart Filter Press:

Mining, minerals processing & metallurgy

  • Solid particle removal from process water (polishing)
  • Smaller concentrate streams, e.g. lead concentrate
  • Chemically demanding streams, e.g. acid and caustic streams, lead
  • Industrial effluent treatment
  • Battery metal production
  • Precious metal processing

Chemical Industries

  • Solid particle removal from process water (polishing)
  • Hygienic filtration – Industrial water and wastewater
  • Flue gas scrubbing waste
  • Industrial minerals, e.g. zeolites, gypsum, lime, kaolin
  • Fertilizers
  • Polymers and resins
  • Pulp and paper
  • Chemically produced toners
  • Organic chemicals

Food and Pharmaceutical Industries

  • Food production water streams
  • Process water polishing
  • Water purification and dewatering
  • Food
  • Beverage filtration, e.g. wine, beer
  • Oil filtration (rapeseed, olive, etc.)
  • Chemicals
  • Biogas dewatering of fermentation residues

Power and Incineration Industries

  • Fly ash washing
  • Bottom ash neutralisation
  • Flue gas desulphurisation

Other Industries

  • Biogas dewatering of fermentation residues
  • Concrete washwater
  • Battery recycling
  • Printing house wastewater
  • Dumping ground seepage water
  • Anodisation
  • ECM (electrochemical machining) wastewater
  • Slide grinding technology – Glass processing
  • Groundwater remediation
  • Semi-conductor industry
  • Industrial wastewater

 

  • Ceramics
  • Gravel washing
  • Communal wastewater
  • Plastics recycling
  • Catalytic converters
  • Metal recovery
  • Natural stone processing
  • Solar cell production
  • Drinking water purification
  • Process water treatment
  • Metal finishing waste
Roxia Smart Filter Press runs self-diagnostic in each filtration cycle, making it fully automatic self cleaning filter.

Self-cleaning filter

  • Automatic filter press – all stages of operation are fully automated.
  • Unmanned availability above 98 %, only periodical inspections required.
  • For safety and performance, sludge filter press is equipped with several error detecting functions.
  • Optionally with Roxia Malibu™ online portal for remote monitoring and performance analysis.

Roxia Smart Filter Press™ runs self-diagnostic in each filtration cycle, making it a fully automatic self cleaning filter.

Clean and safe

Filtration with gasketed filter plates behind enclosed and interlocked doors. Self-diagnostic in each filtration cycle.

No slurry sprays.

No human contact with filter cakes or fumes.

No operator involvement near moving parts.

Leak-testing before each filtration cycle ensures cleanliness of the filter in traditionally dirty applications.

Smart Filter Press

Low maintenance and low environmental impact

  • Gentle and optimised process cycle minimises consumption of utilities as well as amount of required wear & spare parts.
  • Advanced washing system provides extra mileage for filter clothes.
  • Automated failure analyses support preventative maintenance.
  • Advanced diagnostics and remote support enhance troubleshooting.

Key Performance Indicators -view in Roxia Digital Solution portal Malibu is tailored according to user needs.

Enhance process with integrated Smart Filtration

Roxia SFP filter can be connected to the Roxia Malibu™ online portal to remotely monitor and analyse performance. With Smart Filtration, operators can optimise filtration process, increase production volume and detect failures before they even occur. All that can be done from anywhere with computer, smart phone or other handheld device with internet connection.


Monitoring the filtration process online through Roxia Malibu portal is easy and user-friendly.

Technical data

Roxia Smart Filter Press™ (SFP)

Filter size / Filtr. area (m2) Plate format (mm) Number of chambers Filter volume (l) Length (m) Width (m) Height (m) Weight (t)
Roxzia SFP 470 1 GM32 / 1,28 470 x 470 4 16 2,4 0,9 1,7 1,2
Roxia SFP 470 3 GM32 / 3 470 x 470 10 40 2,5 1,2 1,85 1,7
Roxia SFP 630 6 GM32 / 5,9 630 x 630 10 86 3,2 1,3 1,85 2,3
Roxia SFP 800 10 GM32 / 9,9 800 x 800 10 154 3,8 1,3 1,95 4,9
Roxia SFP 1000 15 GM32 / 14,9 1000 x 1000 10 238 4,0 1,7 2,1 5,1
Roxia SFP 1000 15 GM32 / 14,9 1200 x 1200 10 365 4,0 1,7 2,5 6,7

Air, Water & Electricity Consumption

Complete filter system solutions

Roxia Filter Press™ (FP) delivers fully automatic operation, advanced filter press technology and high capacity. Roxia Filter Press (FP) presents fully automatic operation, high quality filtration technology, superb performance and high availability.

We deliver long-term solutions to maximize your production, reduce downtime and lower total costs. Our experts provide you with the whole package and complete lifetime support.

Common applications for Roxia Filter Press:

  • Zinc refinery processes
  • Wastewater streams
  • Silver, gypsum and chlorine removal
  • Flue-gas desulfurization
  • Polishing
  • Energy metals

Fully automatic & engineered together with plant operators

Roxia professional filtration team is with you every step of the way to improve your process performance. After analyzing the process, Roxia experts will select component materials most suitable for process requirements. All materials are extremely durable and designed for demanding applications.

In the engineering phase, you will receive all necessary 3D models to include into your plant design. Great advantage of Roxia are own designs, modern filter cloths and other filter spare parts. Roxia provides you with great process design resulting in fully automatic operation.


Roxia Filter Press™ has great process design which results in fully automatic operation.

Enhanced Process with Smart Filtration

Roxia connects industrial filters to the Roxia Malibu online portal and enables remote monitoring of performance. With Smart Filtration, operators can analyse and optimise filtration process, increase production volume and detect failures before they even occur. All that can be done from anywhere with any computer, smart phone or other handheld device with internet connection.


Roxia troubleshooting tools detect abnormalities in the process and automatically send alarms via email.

Technical data

Roxia Filter Press™ (FP)

Filter plate size (mm)
  • 800 x 800
  • 1000 x 1000
  • 1200 x 1200
  • 1500 x 1500
  • 2000 x 2000
  • 2500 x 2600
Filtration area
  • up to 1780 m² per filter
Filtration pressure
  • Standard: up to 16 bars
  • Special cases: up to 30 bars
Optional features
  • Cake pressing
  • Air drying
  • Cake washing
  • Automatic cloth washing device
  • Filtrate quality monitoring
  • Internal chemical washing
  • Gasketed filter plate pack
  • Selection of different filter cloth types
  • Various chamber depths (25, 30, 32, 40, 50, 60 mm)
  • Recessed chamber or membrane pressing
Additional options
  • Feed pump system
  • Density control
  • Service solutions & service contract
  • Cake conveyer
  • Installation safety audit
  • Roxia Smart Filtration package
  • Drip tray
  • Flow meters
  • Pressing water station
  • Filtrate pump
  • Cloth washing system

Air, Water & Electricity Consumption

Filtration testing optimizes existing process

Filtration test service is recommended for optimizing the solid/liquid separation process or when choosing the correct filter type and size. Roxia has many different filter test units, which simulate the operation of the full-size industrial filter and ensure reliable results. Tests can be done on site or in the filtration laboratory. Onsite testing is much faster and does not require interrupting filter’s operation.

Typically, filtered slurry or process conditions keep changing over time. Therefore, filters are often not running in the most optimal way and process performance drops. To improve the situation, filter parameters should be reset and operation of auxiliary equipment checked. Roxia test units make it easy and fast to test the slurry on site, without disturbing the production. Contact us and book an appointment!


Because of the changes in the slurry, it is recommended to regularly perform filtration testing.

Roxia Filter Press test unit's portable control unit uses pressurized air for exact sequence management.

Get accurate insight into filtration parameters

In solid-liquid separation, countless variables affect the filtration process and end result. Through careful testing we can achieve a better understanding of the most important filtration parameters in the process. Each process is completely unique and operation of the filter must be adjusted accordingly. Because of the changes in the slurry, it is recommended to do testing on a regular basis. Based on the results, filter’s operation can be optimized to reach the best performance.

The most important parameters are:

  • Filtration capacity, kg DS/m²h
  • Cake moisture, % w/w
  • Cake washing results
  • Filter cloth selection
  • Filtrate clarity
  • Optimal filtration cycle

Portable control unit uses pressurized air for exact sequence management.

Wide filter cloth selection

Selection of filter cloths enables you to choose the right type of cloth for individual application, minimizing costs and maximizing production. Choose between filter cloths for tower presses and filter presses.


The filtration test units simulate the operation of the full-size industrial filter.

Roxia filtration test units

We offer different types of filter test units. The size of the sample depends of the size of the unit and ranges from 20 to 200 litres. For more information, contact us.

  • Ceramic disc test unit 0,02 m²
  • Filter press test unit, sizes 0,02 m² and 1,2 m²
  • Tower press test unit, sizes 0,1 m² and 0,01 m²
  • Smart filter press test unit 0,18 m²

The filtration test units simulate the operation of the full-size industrial filter.

Interested in real-time filtration insight?

Smart Filtration helps you to troubleshoot and significantly optimize production. Follow the link above and find out more.


Smart Filtration utilizes existing control system and sensors and connects the filters to the Roxia Malibu™ online portal.

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

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

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Kauko Tanninen

President, Russia & CIS

+7985 226 14 91

Danie Groenewald

Area Sales Manager South Africa

+27 10 590 8374

Russell Beaumont

Senior Service Manager, Filters Australia

+61 408159305

Sun Lin

Area Sales Manager, General Manager China

+86 21 52679628

Dan Stenglein

Sales Director North America

+1 667 500-2591

Ronald Gaspar

Technical Service Manager Peru, Colombia

+51 9 7973 5424

Robert Parks

Filter Sales Manager North America

+1 410 636 2250

Maureen Briceño

Sales Manager Chile, Brazil

+56 2 3224 9704

Yury Beloborodko

Director, Filtration MMM & CEEC Russia & CIS

+7 921 959 46 20

Sergey Petukhov

Technical Director Russia & CIS

+7 495 726 57 41

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

Eduardo Paredes

Sales Director South America

+56 994 991 561

Fernando Henriquez

Sales Director Peru

+51956360887