OEM Quality Filter Spare Parts

We offer filter spare parts for Roxia, NovaTek and filters of other brands. All our spares are of OEM quality and bring original, if not even better performance. Our spare parts portfolio has components for:

  • Tower press filters (vertical filtration) – Wide selection of pressure filter components for Roxia and other tower press type filters.
  • Ceramic disc filters – Ceramic disc filter plates suitable for Roxia and other CD filters are available in different sizes and porosities.
  • Smart filter presses – Contact us about spares for Roxia SFP.
  • Filter presses (horizontal filtration) – Contact us about spare parts for Roxia and NovaTek filter presses.

What Is the Spares’ Expected Lifetime?

A lifetime of filter parts depends on many factors. First of all, it depends on the part itself, exactly which one are we talking about? Some of the parts are under heavy tear and wear and others are doing lighter jobs. For example, filter cloths are known to be subject to immense pressures and mechanical loads. On average, the filter cloth is in use for approximately 6000 cycles. This means that during its lifetime, a filter cloth can discharge up to 120 million kilos! Their lifetime is much different than let’s say, filtrate hose’s lifetime.

For more information about the spare part’s lifetime you are interested in, it is best to contact our filter service professionals.

Improve Performance

Ceramic disc filter elements are typical wearing parts when it comes to ceramic disc filters. Any ceramic element will eventually blind and need to be changed. To extend their lifetime to the fullest, our filtration experts test and select the most suitable filter elements from our portfolio for your process. In this way, we help you improve your performance and achieve longer lifetime at lower costs.

Available sizes:

  • For ceramic disc filters with filtration area from 15 to 144 m2
  • 3, 6 and 12 m2 area per one filter disc

OEM Quality & Lower Costs

We are OEM (original equipment manufacturer) and we know how important is quality. All our ceramic disc filter elements are of the highest quality. We also help you choose the most suitable elements for your process and contribute to longer lifetime. To keep your operational costs low, we offer competitive prices for our spare parts to bring you instant savings. We have local stock near to you and can get deliveries done fast at all times.

It is not only high-quality spare parts that you get with Roxia. We also offer you our full support and other filter services.

Wide Porosity Range

Roxia Ceramic Disc Filter Elements are available in three sizes (3, 6 and 12 m2 / disc) for various filter sizes. They also come in different porosities that fit different processes. This gives you a valuable advantage of choosing the ideal element for your application. Wide porosity range mean wider usability and optimized results. Because of the changes in the process, you might want to change to filter elements with different porosity. Our filtration testing team can help you out to make an informed decision.

Ceramic Disc Filter Element 3 m2

 

Feature Value Unit
Material Aluminium Oxide
Type Membrane plate
No. of elements per disc 12 pcs
Disc outer diameter 1920 mm
Element weight 7.5 kg
Filtration area per element  0.25
Pore sizes available 0.85, 1.25, 2 and 5 μm
Element thicknesses available 24, 25, 30 mm

 

 

Ceramic Disc Filter Element 6 m2

 

Feature Value Unit
Material Aluminium Oxide
Element type Membrane plate
No. of elements per disc 12 pcs
Pore sizes available 2 and 5 μm
Filtration area 0,5
Element weight 17,5 kg
Element thickness 32 mm

 

Ceramic Disc Filter Element 12 m2

 

Feature Value Unit
Material Aluminium Oxide
Type Membrane plate
No. of elements per disc 15 pcs
Disc outer diameter 3800 mm
Element weight 34 kg
Filtration area per element  0.8
Pore sizes available 2 μm
Element thicknesses available 36 mm

 

OEM Quality Filter Spare Parts

We offer filter spare parts for Roxia and filters of other brands. All our spares are of OEM quality and bring original, if not even better performance. Our spare parts portfolio has components for:

  • Tower press filters (vertical filtration) – Wide selection of pressure filter components for Roxia and other tower press type filters. See the entire selection HERE
  • Ceramic disc filters – Ceramic disc filter plates suitable for Roxia and other CD filters are available in different sizes and porosities. Click HERE to see more.
  • Smart filter presses – Spares for Roxia SFP, contact us.
  • Filter presses (horizontal filtration) – Spare parts for Roxia and NovaTek filter presses, contact us.

What Is the Spares’ Expected Lifetime?

A lifetime of filter parts depends on many factors. First of all, it depends on the part itself, exactly which one are we talking about? Some of the parts are under heavy tear and wear and others are doing lighter jobs. For example, filter cloths are known to be subject to immense pressures and mechanical loads. On average, the filter cloth is in use for approximately 6000 cycles. This means that during its lifetime, a filter cloth can discharge up to 120 million kilos! Their lifetime is much different than let’s say, filtrate hose’s lifetime. For more information about the spare part’s lifetime you are interested in, it is best to contact our filter service professionals.


Roxia plasma oxidizer test unit.

40+ Years of Filtration Experience

With extensive experience from the field and filtration technology developments, Roxia filtration experts have re-engineered complete plate packs for tower press filters: from small to big, from old to new generation tower presses. Enjoy the benefits of original quality and performance with lower cost, shorter delivery times and professional process support.

High quality Roxia plate packs for tower press filters

Roxia complete plate packs for tower press filters come in two sizes: 1,6 m² and 6 m². All included components are high-quality. Design of every part is based on filtration experience and best practice to optimize industrial filtration process as much as possible. Besides new complete plate packs Roxia also offers modernizations, refurbishments, spare parts and maintenance support. Thereafter: complete service through the entire filter life cycle.

 


Roxia complete plate packs for tower presses come
in two sizes, 1.6m2 and 6 m2.

5-platepack

Heart of the Tower Press

Tower press filters are extremely durable machines and can last for tens of years. However, its spare parts do wear off and need to be changed. The most important is the filter’s plate pack, also known as the “heart” of a tower press.

Depending on the process and its conditions, the complete filter plate pack can last up to a decade. To keep the tower press in shape, it is recommended to upgrade the entire plate pack when it wears down to the point when mechanical issues, bending of the plates or similar problems occur.

Replace complete set of filter plates

At that point, it is much more efficient to replace the entire set of filter plates at once, rather than changing one by one. One of the reasons lies in downtime – any maintenance break means the filter needs to be stopped and production is cut off. By replacing old, worn filter plates with new, tower press regains its original shape and is ready to bring many more years of efficient production.


Regularly inspect and when needed, replace old, worn tower press filter plates. Roxia filter service professionals offer complete service for the entire plate pack refurbishment or replacement.

Do you need assistance with filter maintenance and other issues?

Roxia experienced filtration professionals can serve all customer needs regarding filter service and filtration. With Roxia’s new process analysis tool, Smart Filtration, we can further optimize any filtration process.  It enables remote, real-time insight into the filtration process and helps to troubleshoot and significantly optimize production. Smart Filtration utilizes existing control system and sensors and connects any filters to the Roxia Malibu™ online portal. It detects process abnormalities and automatically sends alarms to your email, assisting to prevent failures before they even occur.

Roxia filter plate components

All Roxia filter spare parts that make a complete plate pack have shown original quality and performance. To help you achieve better results with (more) suitable filter components, Roxia filter experts offer their advice and on-site visits. Testing of Roxia filter spare parts is also possible. Contact your closest filtration expert to see how Roxia can improve various filtration processes.

 


Feed inlets and suspension pins installed in the complete plate pack of a Roxia Tower Press filter.

Roxia Complete Plate Pack 6 m2 for Tower Press Filters

Filter plate 1,6 m2 , 900 x 1750 mm, chamber height 45 & 60 mm
Base body plate AISI 304L (EN 1.4307), AISI316L (EN 1.4404) or S32205 (EN 1.4462)
Plate frame AISI 304L (EN 1.4307), AISI316L (EN 1.4404) or S32205 (EN 1.4462)
Pressing diaphragm Polypropylene, reinforced
Plate sealing NR or EPDM
Filter plate sliding pieces HDPE
Cloth and roller scrapers Polyurethane or rubber edge, AISI 316 frame
Plate rollers AISI 316, NR or EPDM coated Auxiliary drive rollers NR or EPDM coated
Suspension plates S32205 (EN1.4462)

Roxia Complete Plate Pack 1,6 m2 for Tower Press Filters

Filter plate 6 m2 , 1500 x 4010 mm, chamber height 45 & 60 mm
Base body plate
AISI 304L (EN 1.4307), AISI316L (EN 1.4404) or S32205 (EN 1.4462) 
Plate frame AISI 304L (EN 1.4307), AISI316L (EN 1.4404) or S32205 (EN 1.4462)
Pressing diaphragm
NR, EPDM, IIR or NBR 
Grid set Propylene, reinforced with full width olyp
Filtrate vat HDPE 6000 or HDPE 9000 Filtrate collectors HDPE 6000 or HDPE 9000, 4 pcs/plate
Plate sealing Sealing: NR or EPDM. Frame: AISI 316L
Filter plate sliding pieces HDPE
Cloth and roller scrapers Polyurethane or rubber edge, AISI 316 frame
Plate rollers AISI 316, NR or EPDM coated
Auxiliary drive rollers AISI 316, NR or EPDM coated
Suspension plates S32205 (EN 1.4462)

Filter Inspections

We have more than 40 years of experience in solid-liquid separation. Our professional and experienced filtration team has valuable practical know-how from the field. During inspections, we know what to look for. After carefully examining your industrial filter or other dewatering equipment, we create a full report and recommend how to optimize its performance to the fullest.

All-Round Filter Maintenance

Out of all dewatering equipment, industrial filters are complex devices with many wear parts. We all know it is necessary to keep an eye on the entire filter’s and also on every component’s performance. Maintenance can be challenging, and here is where our professional team comes in.

We believe that we achieve by working together. Each maintenance task gets our 100 % attention and we help where we can to maximise equipment’s performance by keeping it in tip-top shape.

We can help you with:

Maintenance planning, supervision and instruction

Service contracts; one-off or long-term deals

Staff training for onsite maintenance

Preventive Maintenance in Solid-Liquid Separation

When a filter spare part or other dewatering spare breaks, it is often too late. The process is already down and you are losing valuable time and resources. To prevent unexpected breakdowns and unnecessary downtime, we offer preventive maintenance services. Our professional team is skilled in handling all processes within solid-liquid separation:

  • Development of preventive maintenance practices based on Reliability Centered Maintenance
  • Assessment of current practices, methods, and materials of the site.
  • Professional training of maintenance and operations personnel.
  • Comprehensive assessment of the strengths and opportunity areas of the maintenance function.
  • Inventory optimization and maintenance engineering.

Predictive Maintenance: Use IIoT & AI to Prevent Failures Before They Occur

For an enhanced preventive approach we also offer our IIoT solution: Roxia Smart Filtration. Roxia connects the filters to the Roxia Malibu online portal and enables remote monitoring of performance. With Smart Filtration, operators can optimize the filtration process, increase production volume and detect failures before they even occur. All that can be done from anywhere with any computer, smartphone or other handheld device with an internet connection.

Ensure Safe Operation at All Times

Safety is a big deal for us. During any kind of inspection, we always give a very close look at safety features and review their performance. Industrial filters can run for decades. Since they were first installed until today, a lot can change regarding safety concerns, regulations and available technological improvements.

When inspecting filters and other dewatering equipment we check:

  • Is it running in a safe way?
  • Is the filter operated and maintained in safe way?
  • Are all safety standards and regulations met?

After the inspection we provide:

  • Detailed plan on how to improve filter’s safety

How Do We Improve Your Reliability & Reduce Downtime?

Our experienced professionals support you through the entire dewatering life cycle. Starting with user training and continuing with spare parts and maintenance planning, we work with you and offer:

High-quality spare parts selected for your application

Maintenance planning & instructions based on best practices

Always available spare parts & user support

User training for ideal filter operation & maintenance

Spare PARTSOEM Quality and Performance

We do not only deal spare parts. Our promise is to deliver high-quality spares and service for Roxia and also other brand dewatering equipment. We help you select the most optimal spare parts.

INSPECTIONS AND MAINTENANCEProfessional Inspections and Preventive Filter Maintenance

We believe it is crucial to cooperate and discover causes of problems. Our experienced team performs full filter inspections and maintenance services.

REFURBISHMENT, EXPANSIONS & MODERNISATIONSGet Higher Capacity with Low Investment

We offer long-term solutions to maximize your production uptime, reduce downtime and lower total filtration costs. Looking to refurbish, expand or modernise your filter? We are here for you.

USER SUPPORT & PROCESS OPTIMISATIONAchieve Better Process Results & Filter Performance

Our experts provide you with the whole package: expert advice, on-site visits, filtration testing, process optimization and more.

How do we improve performance?

See Case Studies

“For us, it made the most sense to give the modernization of old filters to a company who has the knowledge of the equipment.”

— Juha Hakala, Mechanical Maintenance Manager, Boliden Kokkola

Right filter cloth for each application

A wide range of Roxia filter cloths for tower press filters enables choosing the right type of cloth for any application and filtration process.

Combining the latest textile technology and practical experience results in top-of-the-line Roxia filter cloths. Engineered for best performance and durability. Enjoy the global availability of tower press filter cloths which will help you to maximize your production.

Wide selection to best suit your filtration process

A wide selection of filter cloths enables you to choose the right type of cloth for individual application, minimizing costs and maximizing production. Roxia filtration professionals will provide you with the best long-term solutions.

 


Evaluation of filter cloth’s properties is performed with an electron microscope.

Filter cloth: the essence of dewatering

The filter cloth is an important component in all tower press filters in the world. The solid-liquid separation is done by the filter cloth. Later on, the cloth acts as a conveyor belt and discharges the cake from the chambers. These two different functions require a number of special properties from the fabric. In the filtration process, the permeability of the fabric and other filtration technical properties are important. In the disassembly phase of the filter cake, while the fabric acts as a conveyor, its strength properties are decisive.

Thanks to Roxia’s expertise on tower filter press cloths, our professionals can help select the most suitable type of filter cloth for a certain application.

If the filter cloth does not fit the application, it does not help if the tower press has the latest hydraulic or PLC automation systems. The filter cannot reach the maximum production level with the wrong type of filter cloth. Let us assist you to choose the optimum cloth for each application.


If filter cloth wears out sooner than expected, it means increased costs as it is one of the most expensive tower press filter spares.

Tower press filter cloth duties

In tower press filters, the filter cloth has several different duties. The entire pressure filtration cycle has numerous phases and each of them affects the cloth.

The first duty of a tower press filter cloth is to hold and wait for all filter chambers to fill up with slurry. During the feeding phase, a filter cake forms on top of the filter cloth. This would not happen if the selection of the cloth is wrong or if there are many holes in the cloth.

In the diaphragm pressing phase, the filter cloth is subject to immense pressures up to 16 bar. The filter cloth is pushed deep into the polypropylene grids while carrying a heavy cake.

During the air drying stage, the pressurized air flows into the chamber above the cake. Air passes through the cake and dries it. In this phase it is important that air permeability of the cloth correlates to the filter application.

Then the filter cloth changes its role from filtration to discharge. Heavy cakes can weigh up to 20 tons/cycle. Filter cloth acts as a conveyor belt and simultaneously discharges the cakes from each chamber in 30 seconds. The cloth is then cleaned by the scrapers and washed from both sides before the next cycle repeats. At this point, cloth tracking needs to be impeccable, otherwise it can cause problems and interrupts the filter cycle.

Strength

One of the biggest differences between regular filter press cloths and tower press filter cloths is strength. As described above, the tower press filter cloth also works as a belt. It has to be strong enough to carry heavy cakes out from the filter and withstand being pressed deep into the supporting grids, over and over again.

The strength of the filter cloth also affects its tracking. If the fabric is not strong enough, it can deform over time and cause tracking problems. Eventually, this can lead to premature filter cloth damage.

To showcase how strong the tower press filter cloths are, let’s look at an example. The production of big tower press filters in mining concentrate applications is often 20 tonnes per cycle. On average, the filter cloth is in use for 6000 cycles. This means that during its lifetime, a filter cloth discharges 120 million kilos!

 


The filter cloth is an important component in all
tower press filters in the world.

Air permeability – how to choose the most optimal filter cloth?

The mining industry’s milling technology keeps improving and is reaching better and better ore recovery. Consequently, the particle size has decreased and nowadays filter cloths tend to blind too early. In lots of applications using a cloth with higher air permeability can solve this issue.

But take extreme care when deciding upon air permeability. Using a filter cloth with too high permeability can cause more solids will appear in the filtrate which can lead to tears, holes and overall loss of cloth’s mechanical strength.

Choosing the optimal filter cloth for each application is important because it can:

Increase filter’s capacity
Reduce blinding problems
Shorten the tower press filter cycles

Roxia filtration test team provides you with all the data to make an informed decision for the best long-term solution.

Cloth blinding

How to know when is the filter cloth blinding? One of the most common signs are:

  • Thinner filter cake
  • Wetter filter cake
  • Increased cycle time

With use, every tower press filter cloth will eventually start to blind. But since the filter cloth is an expensive and essential part of the tower press, it should not happen too early! To avoid blinding problems, start at the beginning with the correct filter cloth selection. Other factors which affect the blinding are particle size distribution of the slurry and chemical changes in the process.

Roxia can help you select the correct cloth to avoid such issues. We offer laboratory services for used cloths where we perform a full analysis and give professional recommendations for the most suitable filter press cloths for each process. Our experts assist in eliminating your process challenges and find better solutions.

 


Filter cloth quality

The quality of a tower press filter cloth is directly connected to the consistency of its air permeability. It must be equal at every point of the cloth, even in the largest sizes (148 m long and 1,7 m wide).

Ensuring equal air permeability is related to quality control, specific for the tower press filter cloth manufacturing process. This is a demanding job but Roxia understands the importance of high quality and eliminating possibilities of weaving errors. All our tower press filter cloths are manufactured with the latest technology textile industry machinery with integrated quality check procedures.

Seams for tower press filter cloths

Tower press filter cloths are usually longer than 100 meters they are delivered in a roll. The correct installation requires to first run the entire filter cloth through the tower press  At the same time, the old cloth is run out from under the filter. Then both ends of the new filter cloth are connected with metallic seams and seam wires and form a continuous belt.

Special metallic hooks are already installed on both ends of the cloth in the factory. There are several different seam hook types that are specially designed based on the applications.

 


All Roxia seams are additionally reinforced to extend cloth lifetime.

Seam challenges

Metallic seams are run out of filtration chambers with the help of sensors of tower press filters. Unfortunately, sometimes this can cause seam damages and then too many solids are passing through the filter cloth seam.

Roxia has a solution to easily replace damaged seams. With the Roxia seaming machine, it is fast and much more efficient to make a new seam on the spot, right after the issue is identified. In this way, the tower press filter cloth’s lifetime is maximized and can be used until it is completely worn out.

Reinforced edges by Roxia

Roxia tower press filter cloths have special, strong edge reinforcement to prevent them from fraying when tracking is not completely correct. Improper tracking occurs when rollers are worn out or not aligned. Built up rollers can also cause tracking problems to the cloth. This happens when the cloth is not properly cleaned and slurry builds up between the cloth and rollers.

When the filter cloth is not properly tracked, it starts to touch metal parts of the filter (eg.  roller brackets) and the cloth can fray.

Frayed cloth has a shorter lifetime and means increased filter spare part costs. To prevent this from happening, Roxia offers tower press filter cloths with extra strong edges able to withstand the most demanding applications.

 


Roxia reinforced edges are super strong and prevent premature fraying of the cloth.

How to fix holes in the filter cloth?

Roxia tower press filter cloths are super strong – have a tensile strength of more than 400 kN/m. However, this does not mean they cannot tear. Filter cloth and other technical textiles can still be damaged by sharp pieces or corners which create a hole (also known as a mechanical hole).

Tower press filters should be not used if there is even one hole in the filter cloth. Why? When there is a hole, it means the solids are passing through and wear down the other filter spares. The hole is gradually getting bigger and bigger and causes more and more problems to the tower press.


Filter cloth is clearly used but does not show signs of premature wearing.

Industrial Filter Cloth Patches

This does not mean the entire filter cloths should be changed immediately. There is a better and more cost-efficient solution developed by Roxia: Industrial Filter Cloth Patches. The patches are 2-sided and design to cover the most common shapes and hole sizes. Patching is fast and follows only one installation principle. It is easy to learn and it can be done on the spot by filter operators or other selected staff. There is no need to worry patched will be scraped off by the scrapers as they become one with the cloth’s surface.

Nevertheless, keep in mind patches are only a fast solution to a bigger problem. The real reason for these holes should be found and fixed as soon as possible. Roxia filter service engineers can perform a filter audit and discover the reasons for filter’s issues and suggest solutions. Roxia has a wide selection of all spare parts for tower presses. From plate seals and all other consumable spares, to complete plate packs.


This is how the surface of a worn out filter cloth looks like.

Roxia filter cloth categories are based on different needs:

Light-Duty – lighter applications
  • Open and thinner structure, perform better against blinding
  •  5 different permeabilities
Standard – common applications
  • More durable than widely used filter cloths.
  • 9 different permeabilities
Heavy-Duty – the most demanding applications
  • The most durable filter cloth on the market, engineered to handle the heaviest cakes in toughest conditions
  • 3 different permeabilities

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

Extend Diaphragm’s Lifetime

Roxia rubber diaphragms for tower press filters combine professional moulding manufacturing and benefits of more than 40 years of experience in elastomer technology and high stressed rubbers. Each Roxia diaphragm is fully moulded, made with one pressing, resulting in smooth transitions and high quality. We focus on product advancement to extend lifetime and filter availability.

Improved functionality and extended lifetime

Roxia diaphragms for tower press filters have improved moulding. We use only one homogenous mould to get the best results and professional finishing. This and other improvements are based on valuable practical experience from the field and professional elastomer knowledge. The natural rubber (NR) compound is the most optimal for heavy duty filtration processes to endure immense pressures and have a longer lifetime.

To make overall better diaphragms and extend lifetime, several other improvements have been made. Diaphragm areas against pressing air/water outlet and feed inlet are now reinforced and therefore more durable. Grooves and pipes secure free air/water outlet, improving diaphragm’s functionality. All improvements contribute to better filter availability.

 


Diaphragm areas against pressing air/water outlet and feed inlet are now reinforced and therefore more durable.

Roxia diaphragm 6 m² tower press filter plate size. Other sizes are available as well.

Available sizes and materials of Roxia rubber diaphragms

Choose from diaphragms for 1,6 m² (flat and cupped), 2,5 m² and 6 m² tower press filter plate sizes. Four different rubber compounds are available: IIR, NR, NBR and EPDM. See datasheet for more information.

Click here to see the mechanical properties of NR and NBR. Contact us to check mechanical properties of IIR and EPDM.


Roxia diaphragm 6 m² tower press filter plate size.
Other sizes are available as well.

Diaphragms for PP filter plates

Roxia also offers pressing diaphragms suitable for filter plates made of polypropylene (PP). PP filter plates are mainly used in chemical industry, hydro-metallurgy and starch filtration. The reason to use PP plates instead of steel in those applications is mainly in better chemical resistance.

The diaphragm’s material is still rubber but there are a couple of structural differences when compared to steel plates:

  • When we are dealing with PP filter plates, the diaphragm’s edge also functions as the filter plate seal.
  • Diaphragms are fitted differently to the polypropylene filter plates. They are fixed into the groove at the bottom of the plate. Because of that another, separate part called feed shoe is needed to lead the slurry into the filtration chamber.

Feed Shoe

Feed shoe is a separate, integral part for the PP filter plates. Because the pressing diaphragm is fixed directly to the filter plate, slurry could not enter inside the chamber without the feed shoe.

Feed shoe therefore lifts the diaphragm in a specific spot and feeds the slurry inside the filtration chamber. The feed shoe has an additional Feed Shoe Seal on the bottom to seal the filtration chamber in that specific area.


Roxia diaphragms for tower press filters have improved moulding.

Available as standalone spare part

Diaphragms for PP filter plates, feed shoes and feed shoe seals are directly connected to each other. They often do not have the same lifetime but usually feed shoe is sold together with seal in a package. This is the reason why Roxia can deliver the feed shoe seal or the diaphragm as a separate spare part. Contact us to get more information about the filter spares.

Roxia Pressing Diaphragms for Tower Press Filters

PRESSING DIAPHRAGMS FOR 1,6 M2 PLATE, CUP

Roxia item Description ~Weight, kg OEM item
*FI10894-NR1 Pressing Diaphragm, 1,6m2, Cup, NR 14 P24412/NR
*FI10894-IIR1 Pressing Diaphragm, 1,6m2, Cup, IIR (Butyl) 14 P210148/IIR
*FI10894-NBR1 Pressing Diaphragm, 1,6m2, Cup, NBR 16 P28510/NBR
*FI10894-IR1 Pressing Diaphragm, 1,6m2, Cup, IR 14
FI10000-NR1 Pressing Diaphragm, 1,6m2, Cup, NR 14 P24412/NR
FI10000-IIR1

 

Pressing Diaphragm, 1,6m2, Cup, IIR (Butyl) 14 P210148/IIR
FI10000-EPDM1

 

Pressing Diaphragm, 1,6m2, Cup, EPDM 14 P24412/EPDM
FI10000-NBR1

 

Pressing Diaphragm, 1,6m2, Cup, NBR 16 P28510/NBR

 

PRESSING DIAPHRAGMS FOR 1,6 M2 PLATE, FLAT

Roxia item Description ~Weight, kg OEM item
*FI10165-NR1 Pressing Diaphragm, 1,6m2, Flat, NR 14 P314396/NR
*FI10165-IIR1 Pressing Diaphragm, 1,6m2, Flat, IIR (Butyl) 14 P314396/IIR
*FI10165-NBR1 Pressing Diaphragm, 1,6m2, Flat, NBR 16 P314396/NBR
*FI10165-IR1 Pressing Diaphragm, 1,6m2, Flat, IR (Isopren) 14 P314396/IR
FI10004-NR1 Pressing Diaphragm, 1,6m2, Flat, NR 14 P314396/NR
FI10004-IIR1

 

Pressing Diaphragm, 1,6m2, Flat, IIR (Butyl) 14 P314396/IIR
FI10004-EPDM1

 

Pressing Diaphragm, 1,6m2, Flat, EPDM 14 P314396/EPDM
FI10004-NBR1

 

Pressing Diaphragm, 1,6m2, Flat, NBR 16 P314396/NBR

 

PRESSING DIAPHRAGMS FOR 1,6 M2 PP-PLATE

Roxia item Description ~Weight, kg OEM item
*105475-NR1 Pressing Diaphragms for 1,6m2, PP-plate, NR 16 H1895184/NR
*105475-NR1 Pressing Diaphragms for 1,6m2, PP-plate, IIR 16 H1895184/IIR
*105475-NBR1 Pressing Diaphragms for 1,6m2, PP-plate, NBR 18 H1895184/NBR
*105475-IR1 Pressing Diaphragms for 1,6m2, PP-plate, IR 16 H1895184
*105475-IR1 Pressing Diaphragms for 1,6m2, PP-plate, NR 16 H1895184/NR
106172-EPDM1

 

Pressing Diaphragms for 1,6m2, PP-plate, EPDM 16 H1895184/EPDM

 

PRESSING DIAPHRAGMS FOR 2,5 M2 PLATE

Roxia item Description ~Weight, kg OEM item
*FI10340-NR1 Pressing Diaphragm, 2,5m2, NR 25 F500005/NR1
*FI10340-IIR1 Pressing Diaphragm, 2,5m2, IIR 25 F500005/IIR1
*FI10340-EPDM1 Pressing Diaphragm, 2,5m2, EPDM 25 F500005/EPDM

 

PRESSING DIAPHRAGMS FOR 6,0 M2 PLATE

Roxia item Description ~Weight, kg OEM item
*FI10696-NR1 Pressing Diaphragm, 6,0m2, NR 45 P211838/NR
*FI10696-IIR1 Pressing Diaphragm, 6,0m2, IIR 45 P211838/IIR
*FI10696-NBR1 Pressing Diaphragm, 6,0m2, NBR 50 P211838/NBR
*FI10696-IIR1 Pressing Diaphragm, 6,0m2, IR 45 P211838/IR
FI10008-NR1 Pressing Diaphragm, 6,0m2, NR 45 P211838/NR
FI10008-IIR1

 

Pressing Diaphragm, 6,0m2, NR 45 P211838/NR
FI10008-EPDM1

 

Pressing Diaphragm, 6,0m2, EPDM 45 P211838/EPDM1

 
*Recommended option
For mechanical properties of rubbers, please contact us.

Information without engagement. All rights to changes without prior notice reserved.

Filter Service Solutions

We have more than 40 years of experience in solid-liquid separation. Our team of highly experienced filtration professionals offers full user support regarding filtration and filter service. We help you achieve more reliable operations with lower costs.

filter-parameters-check

Onsite and Remote Filtration Support

A filter is stopped but you do not know why? Would you like to get to the bottom of the filter’s faults? Roxia filter experts are here to help. We do not focus only on the faults, but also do our best to discover the root causes for the issues and eliminate them once and for all. We have the means and highly trained professionals to help your either onsite or offer remote troubleshooting assistance.

Filtration Troubleshooting

Often it happens that a filter is reporting an alarm or even stops, but it does not report the reason for the fault. Filter can also underperform compared to its original specifications. That is where we step in. Our filter troubleshooting approach is:

  • Work together to define filter’s issues, visit to the site (if necessary)
  • Remote monitoring and data analytics (if possible)
  • Experienced professionals offer expert advice
  • Compare filter’s performance to other similar filters based on our extensive knowledge

Additional Training

When staff, equipment or process changes, additional training is necessary to bring everyone up-to-date. Especially if your filter has just undergone an expansion or a modernisation. We organise seminars for your staff and talk about in-depth filter issues, safety, how to approach and solve them, suitable filtration maintenance and much more. Contact us for more information on training.

Process Optimisation for Any Industrial Filter

Any kind of slurry comes from nature. And we know that nature is full of variations which means the ore and consequently slurry consistency varies. For this reason, filtration characteristics and settings should be revised fairly often to keep the filtration to the optimum.

Optimize Your Solid-Liquid Separation Process

To improve process performance, filter parameters and operation of auxiliary equipment should be checked. To make an informed decision, we always collect the necessary data and get an accurate insight into filtration parameters.

There are two different ways:

Laboratory-scale filtration testing: either in laboratory or onsite with a small-scale filter test unit

Full-scale filter optimisation: run the test programme onsite with the actual production unit

In both cases we analyse:

Tonnage

Cake moisture

Capacity

We closely check the filter’s parameters:

Feed time & pressure

Air drying time & pressure

Pressing time & pressure

Our filtration team uses different small-scale filter test units for their work. They simulate the operation of the full-size industrial filter and ensure reliable results. Another advantage of using test units is that it does not interrupt production in any way. After such filtration tests we define optimal filtration parameters for your process and apply them to the actual production filter. That is how we help you improve performance and positively affect your results.

Process Optimisation with Roxia Smart Filtration

With our new, top-of-the-line process analysis tool, Smart Filtration, we can easily optimize any filtration process. The aim is to optimize filtration performance and deliver best possible solution with the help of AIoT – Artificial Intelligence of Things.

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

Full Data Protection & No DCS Integration Needed

Smart Filtration is secured by SSL/TLS encryption – the same technology used in internet banking. Hardware based Virtual Private Network (VPN) and physical firewall isolate filter PLC from public network. Roxia is using its own internet connection to send the data to the cloud. Roxia Smart Cube is configured as a read-only system, so Smart Filtration tool cannot affect the filtration process in any way. No DCS (Distributed Control System) integration is needed, but it can be arranged upon request.

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

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Contact us

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

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

Eduardo Paredes

Sales Director South America

+56 994 991 561

Fernando Henriquez

Sales Director Peru

+51956360887