Leading Industrial Filter Press Manufacturer & Supplier
Global leader in solid-liquid separation. We engineer and manufacture heavy-duty filter presses designed for the most demanding mining, chemical, and municipal wastewater applications. Factory-direct pricing, custom engineering, and lifetime technical support.
- 15+ Years Excellence
- ISO 9001&CE Certified
- 500+ Global Project
- 24/7 Support
What Is a Filter Press?
A filter press is industrial equipment that separates solids from liquids in a slurry by pumping the mixture into chambers, applying high pressure, and forcing the liquid (filtrate) through filter cloths while retaining the solids as a compressed “filter cake,” effectively dewatering and clarifying the mixture for various applications like wastewater treatment, mining, and food processing.
Comprehensive Range of Filter Press Machines We Supply
We offer a wide variety of filtration equipment to fit your specific industry needs. From standard dewatering to high-precision sanitary filtration, explore our complete product line below:
Standard & High-Efficiency Series
Membrane Filter Press
Featuring flexible plates that inflate (via water or air) for secondary squeezing. Ideal for reducing cake moisture to the lowest limits and shortening cycle times.
Recessed Plate Filter Press
The industry standard for robust solid-liquid separation. Simple structure, high durability, and cost-effective for general wastewater treatment.
Plate and Frame Stainless Steel Filter Press
The classic design allows for the use of filter paper or cloth. Perfect for ultra-fine filtration, where high filtrate clarity is required.
Automatic Quick Opening Filter Press
Designed for large-scale operations. It opens multiple plates simultaneously, drastically reducing the unloading time and increasing daily throughput.
Vibrating Filter Press
Equipped with an automatic plate shifting and vibration system to ensure sticky filter cakes fall off easily without manual intervention.
Material-Specific & Sanitary Series
Stainless Steel Filter Press
Made entirely of high-grade SUS304 or SUS316. Top choice for food, beverage, and pharmaceutical industries requiring sanitary (GMP) standards.
Plate and Frame Stainless Steel Filter Press
Combines the fine filtration of plate-and-frame design with the sanitary properties of stainless steel. Ideal for blood products, fine chemicals, and beverages.
Stainless Steel Coated Filter Press
A cost-effective alternative where the structural frame is carbon steel clad with a stainless steel layer (SS304 shield), offering corrosion resistance at a lower price point.
Cast Iron Filter Press
Specifically engineered for high-temperature materials (up to 300°C) or high-strength filtration needs where plastic plates might deform.
Gasketed CGR Filter Press
Features a "Caulked, Gasketed, Recessed" plate design. It provides a 100% leak-free operation, crucial for toxic, solvent-based, or precious liquid filtration.
Specialized & Automatic Solutions
High-Pressure Filter Press
Built to withstand higher feed pressures (up to 20-30 bar). Perfect for difficult-to-dewater sludges that require maximum compaction.
Automatic Mobile Filter Press
A skid-mounted, wheel-equipped system. Ideal for multi-site operations or temporary projects where the machine needs to be moved between different tanks.
Vertical Filter Press
A unique design offering a compact footprint and utilizing gravity and high-pressure water/air for washing and drying. Often used in specialized chemical processes.
Small Scale & Manual Operations
Laboratory Filter Press
Compact units designed for feasibility studies, pilot testing, and universities. Simulates full-scale production data accurately.
Manual Jack Filter Press
A simple, electricity-free solution for small batches. Uses a mechanical or hydraulic jack for clamping. Low cost and easy to maintain.
Who These Filter Presses Are For (and Who Are Not)
- Suitable Applications
- Municipal and industrial wastewater treatment plants
- Sludge dewatering with high solids content
- Mining, chemical, metal finishing, and food processing wastewater
- Projects requiring low cake moisture and stable operation
- Not Recommended For
- Very low solids concentration (<1%)
- Applications requiring continuous discharge without batch cycles
- Projects with limited installation space and no hydraulic system allowance
Typical Problems We Solve
- High sludge cake moisture after dewatering
- Unstable filtration efficiency
- Excessive labor for manual operation
- Frequent filter cloth clogging
- High operating and maintenance cost
In many projects, these problems are caused by incorrect filter press selection or poor system integration, not the machine itself.
Why Our Filter Press Systems Outperform the Competition
Superior Frame Construction
Our frames are made from strong Q345B carbon steel, sandblasted to a Sa2.5 grade, and coated with a 4-layer epoxy finish (250μm thickness) to prevent rust in harsh environments.
Advanced Filter Plate Technology
Made from Reinforced Virgin Polypropylene (PP). Unlike recycled PP, our plates offer higher thermal stability (up to 95°C) and higher pressure resistance, preventing plate deformation and leakage.
High-Precision Hydraulic Systems
We use top-quality hydraulic parts (like Yuken or similar). Automatic pressure maintenance keeps the press sealed during the entire filtration cycle, preventing dangerous blowouts.
Smart PLC Control Systems
Fully integrated automation via Siemens or Schneider PLC. Features include HMI touchscreens, remote monitoring, automatic cloth washing, and pressure-sensing feed pump control.
How Our Filter Press System Works in Real Projects
This is not a standard machine. It is a complete dewatering system.
System Includes
- Filter press (plate type selected by sludge properties)
- Feeding pump and control logic
- Hydraulic station
- Filter cloth selection and layout
- Optional automatic plate shifting & cloth washing system
Configuration Options Based on Sludge Characteristics
We do not recommend one standard model for all projects.
Selection Factors
- Sludge solids concentration
- Particle size and compressibility
- Required cake dryness
- Daily treatment capacity
- Available installation space
We typically finalize the configuration after reviewing sludge analysis and process flow.
Filter Press Cost & Pricing
| Capacity | Type/Description | Approximate Price Range | Source Notes |
|---|---|---|---|
| 1-5 m² filtration area | Basic chamber or manual plate press | $1,000 – $6,000 | Entry-level for small operations |
| 5 cu ft | FDA cGMP compliant or membrane squeeze plate | $28,000 – $58,000 | Suitable for biomass or pharma |
| 20 cu ft | Biomass FDA cGMP filter press | $73,000+ | High-end for food/pharma |
| 100-500 m² filtration area | Automatic chamber/membrane press | $50,000 – $140,000 | Industrial wastewater treatment |
| Large (e.g., 600 cu ft) | High-capacity models (2000mm plates) | $200,000+ | Custom for mining or large plants |
Filter Press Working Process
1. Filling
The process begins like a conventional filter press, with slurry pumped in through the feed pipe. The slurry fills each chamber and initial filtration occurs under pressure as the solids accumulate on the filter cloths to form individual filter cakes.
The rubber membranes remain relaxed during the filling phase and allow unimpeded cake build up.
2. Pre-Squeeze Filtration
When the chambers are close to being 80-90% full, the feed pump pressure will rise sharply. At this point, the pump flow rate is slowed down to allow filtration to continue at a lower pressure for another 10-15 minutes.
The purpose here is to allow the formed cakes to slightly compact and consolidate, making them easier to squeeze in the next phase.
3. Cake Squeeze
Now the magic happens!
The feed pump is switched off and the membrane squeeze sequence activated. Compressed air or high pressure water (up to 15 bar) fills the cavity behind each membrane, inflating them and providing even pressure across the entire surface of the filter cake.
The pressure squeezes the cakes, displacing the liquid held within the cake pores and significantly reducing moisture content. Depending on the sludge properties, this squeezing action can sometimes remove as much liquid as the initial pressure filtration!
Squeezing time can range from 15 minutes up to an hour for certain applications. Real-time monitoring of filtrate flows and clarity helps determine optimal durations.
4. Cake Discharge
After squeezing is complete, the water or air pressure is fully released from the membranes before opening up the filter press. The cakes can now be discharged as per a conventional filter press using plate shifters or manual methods.
An advantage here is that membrane cakes discharge easily without air knives or plate shakers since they form stiff, cohesive blocks after squeezing.
Filter Press Applications
Mining & Metallurgy
Handling high-density mineral concentrates (Gold, Copper, Iron). Our heavy-duty designs withstand the abrasive nature of mine tailings.
Chemical & Petrochemical
Safe handling of explosive or toxic materials with explosion-proof motors and gas-tight vapor hoods.
Environmental Protection
Cost-effective sludge management for ETP (Effluent Treatment Plants) and STP (Sewage Treatment Plants), achieving "Zero Liquid Discharge" (ZLD) goals.
Food, Beverage & Pharma
GMP-compliant designs for sugar refineries, edible oil bleaching, and herbal extraction.
Expert Tips for Filter Press Selection
To ensure the highest ROI, consider these 4 critical factors before ordering:
Feed Slurry Characteristics: What is the solid concentration (%), particle size, and pH value?
Required Cake Moisture: Do you need a “stackable” dry cake (Chamber Press) or the absolute lowest moisture possible (Membrane Press)?
Cycle Time Requirements: How many batches do you need to process per 8-hour shift? (Determines the need for automation).
Material Compatibility: Does your material require Stainless Steel, PP, or Cast Iron plates?
Quality You Can Trust – From Our Factory to Your Site
Factory Direct
20,000 m² manufacturing facility with in-house CNC machining and automated welding robots.
Strict QC Process
Every machine undergoes a 1.5x working pressure hydraulic test for 24 hours before shipment to ensure zero leakage.
Global Logistics
Export-compliant sea-worthy packaging with localized installation support in over 30 countries.
Why Choose Us as Your Filter Presses Supplier?
Proven Performance
Achieve the driest filter cakes and cleanest filtrate with up to 99% solids removal.
Tailored Solutions
Our experts help you select the ideal filter press configuration for your specific application.
Scalability
Available in sizes from small portable units to large industrial presses, suitable for any operation.
Comprehensive Support
Access to parts, technical assistance, and maintenance services through our dedicated customer support portal.
Let’s Build Your Efficient Filtration System
Don’t let sludge disposal costs drain your profits. Contact our engineers today for a free technical consultation and a competitive quote.
If you are interested in our products, don’t hesitate to contact us! You can contact us in any way that is convenient for you. We are available 24/7 via fax or email. You can also use the quick contact form below or visit our office. We would be happy to answer your questions.
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