China Reliable Filter Press Supplier

SINOU Filter Press is a professional high-pressure solid-liquid separation equipment widely used for industrial sludge dewatering. Adopting mature hydraulic compression filtration technology, this filter press separates solid particles and water efficiently from various types of sludge.

It turns fluid sludge into dry filter cakes and recycles clean filtrate, realizing resource reuse and waste reduction. Designed for long-duration heavy-duty operation, the filter press features stable performance, simple structure and easy operation.

It is an essential core unit for wastewater treatment, environmental protection renovation and solid waste disposal projects across multiple industries. Contact us today to get a factory-direct price.

Working Principle & Operation Flow

This filter press works based on mechanical pressure filtration. The complete working cycle runs automatically as follows:

● Slurry Feeding: Sludge is pumped into each filter chamber of the filter press until full filling.

● High-Pressure Compression: The hydraulic system pushes filter plates to close tightly. Under continuous pressure, water in the sludge penetrates filter cloth and flows out as clean filtrate, while solid materials are trapped inside filter chambers.

● Pressure Maintaining: The system holds stable pressure to further reduce moisture content of filter cakes and ensure ideal dewatering effect.

● Automatic Cake Discharge: After dewatering is completed, filter plates open automatically, and dry filter cakes drop down for collection and transportation.

● Cycle Reset: The equipment cleans filter cloth automatically and returns to standby status for the next working cycle.

Structural Composition & Product Details

(1) Heavy-Duty Main Frame

The main frame is made of thick steel plates with full welding and stress relief treatment. It owns high structural rigidity and strong compression resistance, never deforming under long-term high pressure.

The whole frame is treated with anti-rust and anti-corrosion paint, adapting to humid, dusty and corrosive working environments. The compact layout saves installation space and suits various workshop conditions.

(2) Filter Plate & Filter Cloth Assembly

High-strength polypropylene filter plates are adopted. They feature excellent acid resistance, alkali resistance, wear resistance and aging resistance. Uniform chamber design guarantees even pressure distribution and no slurry leakage.

The matched filter cloth is selected according to different sludge characteristics. It has good permeability and outstanding interception capacity for fine particles. The modular design allows quick disassembly, cleaning and replacement.

(3) Hydraulic Drive System

Equipped with integrated hydraulic station, the system provides stable and powerful pressing force. Hydraulic components operate smoothly with low noise and low failure rate.

It supports automatic pressure adjustment and constant pressure maintenance, which can be flexibly set to match different sludge properties and dewatering requirements. All hydraulic pipelines are well sealed to prevent oil leakage.

(4) Automatic Plate Shifting Mechanism

The automatic plate shifting device drives filter plates to open and close flexibly. It runs stably without jamming, realizing automatic cake discharge. Optional auxiliary vibration structure is available for sticky sludge to ensure thorough unloading of filter cakes.

(5) Intelligent Control System

The filter press is equipped with PLC and HMI control cabinet. It supports one-key automatic operation and manual mode switching. Real-time operating data, pressure parameters and running status can be viewed on the touch screen directly.

Built-in overload, overpressure and fault alarm functions protect the whole equipment effectively.

(6) Automatic Cleaning System

Standard high-pressure water cleaning device is configured. It cleans filter cloth thoroughly after each working cycle to remove attached sludge and fine particles, preventing mesh clogging and maintaining stable filtration efficiency for a long time.

Core Product Advantages

(1) Superior Dewatering Performance

High-pressure filtration realizes thorough solid-liquid separation. The finished filter cake has low moisture content, convenient for transportation and subsequent disposal. It works well even for sludge containing a large number of fine particles.

(2) Fully Automatic Operation

The whole process from feeding, pressing, dewatering to cake discharging and cloth cleaning is completed automatically. It supports 24-hour unattended operation and greatly cuts labor costs.

(3) Strong Environmental Adaptability

All key components adopt anti-corrosion and wear-resistant materials. The equipment can run stably in high-alkali, high-salt, dusty and other harsh working conditions with low failure rate and high operational availability.

(4) Energy Saving & Eco-Friendly

Low power consumption during operation. The separated filtrate can be recycled for production use, achieving zero liquid discharge and complying with global environmental regulations.

(5) Easy Maintenance & Long Service Life

Modular component design simplifies daily inspection and parts replacement. High-quality raw materials and precise manufacturing extend the overall service life and reduce long-term operating costs.

(6) Flexible Matching Capacity

Multiple models with different filter areas are available. The equipment can be flexibly matched with sludge tanks, stirring devices, feeding pumps and pipeline systems to form a complete sludge treatment line.

Product Classification

(1) Standard Automatic Filter Press

General-purpose model with medium filter area and standard configuration. Cost-effective and widely applied for conventional industrial sludge treatment projects.

(2) Large-Capacity Filter Press

Enlarged filter area and increased filter plates. Designed for projects with large daily sludge output and high continuous processing demands.

(3) Compact Filter Press

Optimized overall size and compact structure. Suitable for sites with limited installation space, such as renovated workshops and small-scale treatment stations.

(4) Dual Control Filter Press

Supports automatic and manual dual operation modes. Easy for equipment debugging, routine inspection and special working condition handling.

Application Scope

(1) Concrete batching plant wastewater & sludge treatment

(2) Municipal sewage treatment projects

(3) Chemical, printing and dyeing, electroplating industry sludge disposal

(4) Mining, coal washing and aggregate processing lines

(5) Food, pharmaceutical and other industrial solid-liquid separation

(6) All industries requiring sludge dewatering and waste water recycling

Matching Equipment

● Sludge collection tank & stirring system

● Hydraulic plunger pump / slurry feeding pump

● Water supply pipeline & control valves

● Material conveying equipment for filter cakes

Frequently Asked Questions

Q1: What types of sludge can this filter press handle?

A: It is applicable to various industrial sludge, including cement sludge, municipal sewage sludge, chemical corrosive sludge, mining sludge and sludge containing fine sand particles. It has strong universal performance.

Q2: Can the separated filtrate be reused directly?

A: Yes. After solid-liquid separation, the filtrate is clear and clean. It can be recycled to production processes or wastewater circulation systems after simple adjustment.

Q3: Is the filter cloth easy to be blocked by fine sludge?

A: We adopt targeted filter cloth for different sludge. Equipped with automatic high-pressure cleaning system, the filter cloth is cleaned after each cycle, which effectively avoids clogging and ensures long-term stable operation.

Q4: Is the equipment easy to operate for new staff?

A: The control interface is intuitive and simple. With one-key automatic operation, operators can master daily use after short-term training.

Q5: Can the equipment work under continuous running conditions?

A: Definitely. The whole machine is designed for heavy-duty continuous operation. With reliable components and reasonable structural design, it can run stably for long hours.

Operation & Routine Maintenance

(1) Daily Operation Rules

● Check filter plates, filter cloth and hydraulic oil level before startup, and remove foreign matters inside filter chambers.

● Start the equipment and observe the whole automatic cycle of feeding, pressing and cake discharging.

● Inspect pipelines, hydraulic parts and plate joints for slurry leakage or oil leakage during operation.

● Run the automatic cleaning program after shutdown to clean residual sludge on filter cloth.

(2) Hierarchical Maintenance

Daily Maintenance

Check running sound, vibration and operating pressure. Keep the equipment and surrounding area clean.

Weekly Maintenance

Add lubricant to bearings and transmission parts. Tighten all connecting bolts and flanges. Inspect filter cloth and cleaning nozzles. Calibrate control instruments.

Monthly Maintenance

Check wear and aging of hydraulic hoses and sealing rings. Inspect filter plates for damage. Test alarm and safety protection functions.

Quarterly Maintenance

Replace hydraulic filter elements. Inspect overall frame structure. Debug automatic operation programs.

Annual Overhaul

Carry out full disassembly inspection for hydraulic and transmission systems. Replace severely worn parts. Perform overall derusting and repainting for the frame.

(3) Recommended Wearing Parts Replacement Cycle

● Filter cloth: 5 ~ 8 months

● Hydraulic sealing rings & bearings: 8 ~ 10 months

● Hydraulic filter element: 6 months

● Guide rail accessories: 10 ~ 12 months

Certification & Market Reputation

All SINOU filter presses are manufactured in accordance with international industrial standards and have passed CE, ISO and other authoritative certifications. Complete qualification documents support overseas customs clearance, project bidding and third-party inspection.

With reliable quality, stable dewatering performance and competitive cost performance, our filter presses have been exported to Europe, the Middle East, Southeast Asia and other regions.

We have established long-term cooperative relationships with numerous industrial manufacturers, environmental engineering companies and wastewater treatment contractors. Customized solutions are available to meet personalized on-site requirements.