Industrial Filter Presses & Sludge Dewatering Systems
Loway Equipment engineers and manufactures advanced industrial filter press systems designed for critical dewatering, sludge processing, and purification applications.
We deliver end-to-end filtration solutions including plate, membrane and automatic filter presses that reduce cycle times, minimize waste disposal costs, and maximize operational uptime. — ideal for wastewater, mining, chemical, food & oil-recycling applications, trusted globally for superior solid-liquid separation and reliable performance in the most demanding applications.
Core Capabilities
- 25+ Years of Combined Engineering Experience
- ISO 9001 Certification in Progress
- PLC/HMI Automation & Remote Diagnostics
- 25-60 Days Standard Lead Time
Core Capabilities:
✅ High-Pressure Filtration: 1.6 MPa standard, higher on request
✅ Verified Quality: dry-run tested with report before shipment
✅ Smart Control: PLC/HMI with remote diagnostics
Filter Press Product Range
The industry workhorse. A highly versatile and reliable system for a wide range of standard dewatering applications. Simple operation and robust design.
Drastically cuts downtime. Designed for rapid-cycle batch processes where fast cake discharge and cleaning are critical.
Achieves the highest level of cake dryness. The "squeeze" function significantly reduces residual moisture, ideal for high-value solids or minimizing disposal weight.
Designed for 24/7, lights-out operation. Features automatic plate shifting, cloth washing, and cake discharge to minimize labor costs and maximize throughput.
Offers maximum filtration flexibility. Ideal for processes requiring filter paper or managing variable cake thicknesses and ultra-fine particulates.
Our Customized Filter Press Equipment is designed to meet your specific needs, offering tailored solutions for solid-liquid separation. Whether you require specialized materials, unique configurations, or advanced automation.
We offer a comprehensive range of filter press types, each optimized for specific slurry characteristics and operational goals.
Product Type | Primary Keyword | Key Benefit | Ideal Application |
Membrane Filter Press | Membrane filter press | Superior cake dryness and shorter cycle times via plate inflation. | Fine chemicals, pigments, and high-value recovery. |
Automated Filter Press | Automatic filter press | Full automation of plate shifting, cloth washing, and cake discharge. | High-volume, continuous operations (e.g., mining). |
Plate & Frame Filter Press | Plate and frame filter press | Versatile, cost-effective solution for general solid-liquid separation. | Batch processing, small to medium capacity. |
Recessed Chamber Press | Chamber filter press | Simple, robust design for general sludge dewatering. | Municipal and industrial wastewater treatment. |
Quick Opening Press | Quick opening filter press | Minimal downtime with ≤30-second plate pack opening. | Pharmaceuticals and specialty chemicals requiring rapid turnaround. |
Filter Press Process Cycle (How It Works)
The efficiency of a filter press lies in its simple, robust batch process. While designs vary, the fundamental filter press working principle remains consistent. A complete filtration cycle typically includes these steps:
Step | Process Phase | Description | Optimization Focus |
1 | Plate Closing | The hydraulic system closes the filter plate pack, creating sealed filtration chambers. | Ensuring uniform pressure and leak-free operation. |
2 | Slurry Feeding | The filter press pump injects the slurry into the chambers under high pressure. The liquid (filtrate) passes through the filter press cloth, leaving solids behind. | Consistent feed pressure and flow rate for optimal cake formation. |
3 | Cake Formation & Pressing | Solids accumulate on the cloth, forming the filter cake. For membrane presses, the membrane inflates to mechanically squeeze out residual moisture. | Achieving the lowest possible moisture content (ultra-dry cake). |
4 | Filtrate Discharge | The clean filtrate is collected and discharged from the press. | Monitoring filtrate clarity and flow for process control. |
5 | Cake Discharge | The hydraulic system opens the plate pack, and the filter cake is discharged by gravity or automated plate shifting. | Rapid, clean discharge to minimize cycle time and labor. |
Filter Press Components & Spare Parts
Keep Your System Running at Peak Performance
Available Filter Press Parts:
Filter Press Cloths
– Multiple materials and weave patterns in stock
Filter Press Plates
– Replacement plates for all major brands
Hydraulic Components
– Pumps, cylinders, valves, and seals
Feed Pumps
– Diaphragm and piston pump options
Membrane
– Optional, higher pressing pressure
Automation Upgrades
– Retrofit kits for manual presses
Industry Applications
Proven Solutions Across Global Industries
Wastewater & Sludge Dewatering
Our sludge filter press systems are a benchmark in municipal and industrial filter press wastewater treatment, delivering high solids cake and clear effluent.
Mining & Metallurgy
Robust, heavy-duty presses designed for dewatering mineral concentrates, tailings management, and metal recovery.
Chemical Manufacturing
Specialized systems built with corrosion-resistant materials (e.g., PP, stainless steel) for fine chemicals, pigments, and process intermediates.
Food, Beverage & Pharma
Hygienic, FDA-compliant designs for processes like syrup filtration, brewing, edible oils, and pharmaceutical intermediate purification.
Oil & Gas
Reliable filtration for managing drilling muds, slop oil, and refinery waste streams.
Loway Filtration Excellence
For over 25 years, Loway Equipment has specialized in designing and manufacturing robust filter press systems that solve complex dewatering challenges. Our equipment is built to withstand aggressive industrial environments, ensuring a long operational lifespan and predictable performance.
- Proven performance: Optimized cycle times and >30% cake dryness (spec per model).
- Lower operating cost: Efficient cake washing, automated controls and durable filter cloths.
- Built for industry: Municipal wastewater, mining tailings, chemical plants, food & beverage, transformer oil recycling.
- Service & parts: Global spare parts, cloth replacements, and retrofit services.
- Quality & traceability: Factory QA, inspected hydraulic systems, and documented material certificates.
The Loway Manufacturing Standard
Structural Integrity & Hydraulic Precision
A filter press is only as good as its frame. We utilize Q355B high-tensile steel (or stainless steel options) for our frames, which are robotically welded and stress-relieved to prevent deformation under years of high-pressure cycling.
The Engineering Logic: This rigid structure supports our heavy-duty hydraulic cylinders, allowing for precise pressure control that maintains seal integrity without over-stressing the components.
Optimized Filtration Media & Plate Technology
We don’t believe in “one-size-fits-all” filtration. Our filter plates are molded from 100% virgin Polypropylene (PP) and CNC-machined for precise flatness to eliminate leakage.
The Engineering Logic: We pair these plates with custom-selected filter cloths (PP, Nylon, Polyester, or PVDF). By matching the weave pattern and tension to your specific slurry, we extend cloth life and maximize filtrate clarity.
Intelligent Process Control
Modern filtration requires more than manual operation. Our systems integrate PLC-based automation with real-time pressure monitoring and safety interlocks.
The Engineering Logic: This system actively protects the equipment by preventing over-pressure events and alerts operators to maintenance needs, transforming the press from a passive machine into a controllable process asset.
Validated Quality & System Integration
No equipment leaves our facility based on guesswork. Every unit undergoes a comprehensive static hydraulic pressure test and functional verification before shipment.
The Engineering Logic: We look beyond the press itself. We ensure compatibility with filter press feed pumps, air scouring systems, and cake conveyors, delivering a fully integrated solution that works immediately upon installation.
Engineered for Performance, Built for Trust
Data-Driven Performance
Our advantage is measurable. Compared to industry standards, Loway systems deliver: • Up to 40% Faster Cycle Times through optimized hydraulics and feed. • 30%+ Drier Filter Cakes with our advanced membrane technology. • Extended Plate & Cloth Lifespan (18-36 months) via reinforced composite
We Are Filtration Specialists
We are not just filter press manufacturers; we are your filtration partners. Our team provides expert sizing, process analysis, and pilot testing to ensure the system you buy is the system you need.
Total Lifecycle Support
From installation and training to a global supply of filter press parts, plates, and cloths, we provide 24/7 technical support to keep your operations running.
Not Sure Which System You Need?
Filter Press Selection Guide
Key Factors for Sizing Your System
- Slurry Characteristics
- Feed solids concentration (%)
- Particle size distribution
- Compressibility
- Chemical compatibility requirements
- Throughput Requirements
- Daily/hourly volume to process
- Target cake dryness
- Available batch time windows
- Filter Press Capacity Calculation Basics
Filter Area (m²) = (Slurry Volume × Feed Solids %) / (CakeThickness × Cake Solids % × Number of Cycles per Day)
Frequently Asked Question.
Have More Questions? Our technical team is ready to provide detailed, personalized guidance.
Q1: Which filter press type is right for my slurry?
Send us your sludge type, volume, and target cake moisture — we recommend between membrane, recessed chamber, or plate & frame presses within 48 hours.
Q2: What cake moisture can a membrane filter press achieve for mine tailings — can it support dry stacking?
Membrane presses typically bring tailings cake to 18–25% moisture, suitable for dry stacking. For smaller tonnages a recessed chamber press (25–30%) is often more economical. Tell us your tailings density, particle size and daily tonnage and we size the unit accordingly.
Q3: Membrane press vs recessed chamber press — which one do I need?
Both filter through the same chamber; the membrane adds a diaphragm squeeze that removes an extra 10–20% moisture. Choose membrane when cake dryness directly cuts your cost (landfill fees, dry stacking, product recovery); choose recessed chamber for lower capex and simpler maintenance when 55–65% moisture is acceptable.
Q4: How dry can municipal sludge get with a filter press?
Recessed chamber presses reach about 55–65% moisture; membrane presses 45–55% — versus 75–80% from belt or screw presses. Drier cake means lower hauling and disposal cost, which typically pays back the membrane option within 1–2 years.
Q5: Can a filter press handle corrosive or chemical slurries?
Yes — polypropylene plates resist pH 1–14, and 316L wetted parts are available for aggressive media. Filter cloths are matched to the chemical; for solvent or high-temperature feeds we use sealed gaskets and special materials. Share your pH, temperature and composition and we recommend the right build.
Q6: What about oily or sticky sludge?
Filter presses handle oily sludge well with flocculant conditioning and the right cloth; a membrane press with high-pressure squeeze also improves cake release on sticky feeds. For extremely sticky materials we may suggest pre-treatment — send a sample description and we advise.
Q7: How do I choose plate size and chamber volume?
We size in four steps: daily dry solids → cycles per day → chamber volume per cycle → plate size and count. Plate sizes range 500–1500 mm. Send your daily volume and solids content and we return a sizing sheet within 24–48 hours.
Q8: Do you supply just the press or the whole dewatering system
Both. We build the press, feed pump and PLC panel, and can integrate upstream screening/thickening and downstream cake conveyors as one package — one factory, one warranty, one contact person.