A Membrane Filter Press is the ultimate industrial dewatering solution designed to achieve the lowest possible filter cake moisture content. Unlike standard presses, it features elastic membrane plates that inflate with high-pressure water or compressed air to perform a powerful secondary squeeze on the filter cake after the initial feeding cycle.
As a leading filtration equipment manufacturer, Yuwei engineers fully automatic, PLC-controlled membrane filter presses that deliver up to 22 MPa of squeezing pressure. From complex municipal sludge dewatering to high-viscosity chemical processing, our membrane technology drastically reduces drying costs, shortens filtration cycles, and maximizes solid-liquid separation efficiency.
In modern industrial solid-liquid separation, achieving a dry, stackable filter cake is critical for minimizing disposal costs and complying with strict environmental regulations. The Membrane Filter Press represents the pinnacle of mechanical dewatering technology. By integrating flexible diaphragms into the filter plate assembly, this equipment allows for high-pressure secondary squeezing, pushing beyond the physical limits of standard feed-pump filtration.
The defining feature of this equipment is the membrane plate, typically molded from high-strength reinforced polypropylene (PP) with inlaid elastic diaphragms. The operation sequence that sets it apart includes:
Upgrading to a Yuwei fully automatic membrane filter press provides immediate, measurable ROI (Return on Investment) for heavy industrial facilities:
Selecting the correct membrane filter press requires aligning the filtration area with your daily volumetric throughput. Below is a reference matrix for our industrial-grade models.
| Plate Size (mm) | Filtration Area (m²) | Standard Cake Thickness | Hydraulic Pressure | Membrane Squeeze Pressure |
|---|---|---|---|---|
| 870 * 870 | 30m² – 80m² | ≤35mm | 18 MPa | Up to 22 MPa |
| 1000 * 1000 | 50m² – 120m² | ≤35mm | 18 MPa | Up to 22 MPa |
| 1250 * 1250 | 80m² – 250m² | ≤40mm | 18 MPa | Up to 22 MPa |
| 1500 * 1500 | 200m² – 500m² | ≤40mm | 18 MPa | Up to 22 MPa |
| 2000 * 2000 | 600m² – 1000m² | ≤40mm | 18 MPa | Up to 22 MPa |
Critical Logistics and Foundation Planning Note: When evaluating heavy machinery specifications, procurement engineers must account for the equipment’s Operating Weight. For our high-pressure membrane filter presses, operating weight refers strictly to the static physical weight of the machine (which can range from 3,000 Kg to over 70,000 Kg for 2000mm units). This heavy-duty mass ensures absolute structural stability against the 18 MPa hydraulic clamping force. It is a critical metric for crane lifting, shipping logistics, and concrete foundation engineering, and should not be confused with the hourly processing capacity.
Due to its exceptional adaptability and structural integrity, our membrane filtration technology is deployed across multiple demanding sectors:
Both mediums are effective. High-pressure water is incompressible, making it inherently safer and more stable for ultra-high-pressure squeezing (up to 22 MPa). Compressed air is faster to inject and exhaust, making it suitable for lower pressure applications (typically up to 0.8 MPa) where rapid cycle times are the priority.
Because the primary filtration phase handles the bulk of the liquid, standard high-pressure feeding pumps (like pneumatic diaphragm pumps or screw pumps) are perfectly suitable. The extreme pressure is generated internally by the hydraulic system and the inflation medium, not solely by the feed pump.
Yes. Our diaphragms and reinforced polypropylene plates are inlaid together using an advanced molding process. They are highly resistant to aging, fatigue, and chemical corrosion, ensuring a long operational lifespan even under continuous high-stress squeezing cycles.
Absolutely. When configured with our PLC control cabinet, automatic plate shifting mechanism, automated bomb doors (drip trays), and online filter cloth washing system, the entire dewatering cycle—from feeding and squeezing to cake discharge and cleaning—can run automatically with minimal operator intervention.
