Zhongsheng Environmental plate and frame filter presses deliver efficient solid-liquid separation for municipal and industrial sludge dewatering, with filtration areas from 1 m² to 500 m² and manual, hydraulic, or fully automatic PLC-controlled operation.
The plate and frame filter press is one of the most widely used solid-liquid separation technologies in sludge dewatering and process filtration. Zhongsheng Environmental manufactures a comprehensive range — from compact 1 m² manual units for laboratory and pilot-plant duty to fully automatic 500 m² PLC-controlled presses for high-volume municipal and industrial applications. Rugged polypropylene filter plates, precision hydraulic clamping, and intelligent cycle control deliver consistently dry filter cake with minimal operator input.
A stack of polypropylene filter plates — each fitted with a filter cloth — is clamped together by a hydraulic or mechanical thrust mechanism to form a series of sealed chambers. A feed pump delivers conditioned sludge or slurry into the chambers under pressure. Liquid (filtrate) passes through the filter cloth and drainage channels, exiting via corner ports, while solids are retained and build up as a cake inside each chamber. As chambers fill, the feed pressure rises to the set point and the press enters a pressure-hold phase to maximise cake dryness. Once the cycle is complete, the hydraulic ram retracts, plates are separated (manually or by an automatic plate-shifter), and the cake drops by gravity into a hopper, conveyor, or skip below. On fully automatic PLC models the entire sequence — clamping, feeding, pressing, opening, cake discharge, and cloth washing — is executed without operator intervention, with all parameters logged on the HMI.
| Model | Filter Area (m²) | Plate Count | Plate Size (mm) | Chamber Thickness (mm) | Clamping Type |
|---|---|---|---|---|---|
| X¹ 1/450 | 1 | 4 | 450 × 450 | 30 | Manual screw |
| X(B)⁴ 20/630 | 20 | 32 | 630 × 630 | 30 | Hydraulic |
| X(B)⁴ 60/870 | 60 | 46 | 870 × 870 | 30 | Hydraulic |
| X(B)⁴ 100/870 | 100 | 78 | 870 × 870 | 30 | Hydraulic |
| X(B)⁴ 160/1000 | 160 | 98 | 1,000 × 1,000 | 30 | Hydraulic |
| X(B)⁴ 200/1250 | 200 | 78 | 1,250 × 1,250 | 30 | Hydraulic |
| X(B)⁴ 300/1250 | 300 | 115 | 1,250 × 1,250 | 30 | Hydraulic |
| X(B)⁴ 500/1500 | 500 | 136 | 1,500 × 1,500 | 30 | Hydraulic |
| Parameter | Specification |
|---|---|
| Maximum Feed Pressure | ≤ 0.6 MPa (6 bar) |
| Filter Plate Material | Reinforced polypropylene (PP) |
| Filter Cloth | Polyester / polypropylene monofilament or multifilament |
| Hydraulic Head-Plate Stroke | 250 – 500 mm |
| Hydraulic Cylinder Bore | Φ120 – Φ320 mm |
| Hydraulic Working Pressure | 12 – 25 MPa |
| Cake Moisture Content | Typically 55% – 75% (application dependent) |
| Frame Material | Carbon steel with epoxy / hot-dip galvanized / SS304 |
| Control Options | Manual / Semi-automatic / PLC fully automatic with HMI |
| Power Supply | 380V / 50Hz / 3-phase (customizable) |
| Compliance | CE marking; EU Machinery Directive 2006/42/EC; pressure equipment per PED 2014/68/EU where applicable |
Zhongsheng Environmental has manufactured plate and frame filter presses for over a decade, with installations spanning municipal utilities, mining operations, and chemical plants across Asia, the Middle East, and Africa. We offer the full range — from entry-level manual units to large-format, PLC-controlled automatic presses with membrane squeeze plates — all built with high-grade polypropylene plates, heavy-duty steel frames, and reliable hydraulic systems. Our applications engineers size every press to your specific sludge characteristics, ensuring optimal cake dryness, cycle time, and throughput at the lowest operating cost.
From 1 m² (lab/pilot scale) to 500 m² (large-scale industrial), with plate sizes from 450mm to 1,500mm.
Manual screw, hydraulic, mechanical, and fully automatic PLC models with one-button unattended cycle operation.
Standard feed pressure ≤0.6 MPa (6 bar); membrane squeeze plates available for higher cake dryness.
Petroleum, chemical, metallurgy, dyeing, food processing, pharmaceutical, mining, and environmental treatment for sludge dewatering and process filtration.
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