50000L/H SUS304 PLC Automatic Sludge Dewatering Screw Press

This 50000L/H wastewater dewatering screw press (50m³/h multi-disc stacked screw sludge separator) is a high-flow industrial solid-liquid separation unit fully equipped with a PLC automatic control system. All sludge-wetted components are fabricated from SUS304 stainless steel to resist corrosion caused by acid, alkali and high-salinity wastewater.
This 50-ton-per-hour screw press eliminates filter cloth and adopts a self-cleaning extrusion structure composed of movable and fixed stainless steel discs. 

It integrates sludge flocculation, gravity thickening and screw extrusion dewatering in one single unit. It can continuously and stably treat sludge flow up to 50,000 liters per hour while maintaining a high solids capture rate and low moisture content of sludge cake.

Our sludge dewatering screw presses have been widely exported to Saudi Arabia, Pakistan, Indonesia, the United Kingdom, France, Colombia, the Netherlands and other industrial regions with high-salinity wastewater.

Working Principle

Flocculation Mixing: Raw wastewater sludge mixes with polymer flocculant inside supporting dosing tank to form compact sludge flocs
Gravity Thickening Zone: Sludge enters stacked disc gap, free filtrate automatically seeps out by gravity to reduce sludge volume
Screw Extrusion Dewatering Zone: Low-speed rotating screw pushes sludge forward, pitch & diameter change builds internal extrusion pressure to squeeze residual water
Sludge Cake Discharge: Dry dewatered sludge cake discharges from outlet; clear filtrate flows back to wastewater recycling tank

Core Product Highlights

Full PLC Automatic Unattended Control

Equipped with independent PLC intelligent control cabinet, linkage synchronizes sludge feeding pump, automatic polymer dosing system and backwashing pipeline. Set running parameters on touch screen to realize 24-hour continuous unmanned operation without frequent manual supervision, 

Full SUS304 Stainless Steel Corrosion Resistant Construction

All medium contact parts including stacked discs, screw shaft, tank body and filtrate channel adopt SUS304 stainless steel, anti-rust, anti-corrosion, resistant to high TDS saline wastewater, weak acid/alkali industrial sewage. 

50000L/H Large Continuous Processing Capacity

Design rated sludge treatment capacity reaches 50 cubic meters per hour, suitable for medium & large-scale wastewater stations, pharmaceutical factory purified water workshop sludge treatment, municipal sewage plant upgrading projects. It supports raw sludge concentration range 2000mg/L–50000mg/L, no need for extra independent sludge thickening tank

Self-Cleaning Clog-Free Design, Low O&M Cost

No filter cloth or filter screen to block; relative motion between moving and fixed discs forms automatic self-clean gap. Even oily, viscous pharmaceutical sludge will not cause pipeline & disc blockage. 

Compact Integrated Unit, Low Noise & Eco-Friendly

Thickening + dewatering integrated all-in-one machine, small floor space for indoor installation. Slow rotation design brings running noise below 60dB, fully closed cavity prevents odor overflow with zero secondary pollution

Main Application Industries 

Municipal Wastewater Treatment: Urban domestic sewage residual sludge, secondary sedimentation tank sludge
Chemical Industry: High TDS saline sludge, weak acid & alkali industrial wastewater sludge
Food & Beverage: Oily processing sludge, brewery, starch plant sludge
Printing & Dyeing, Papermaking, Landfill Leachate, Aquaculture Sludge
Overseas High-Salinity |
Projects: Saudi Arabia, Middle East, Southeast Asia industrial wastewater supporting equipment

Comparison with Traditional Dewatering Equipment

Why Choose 50000L/H SUS304 PLC Automatic Sludge Dewatering Screw Press？

The 50000L/H SUS304 PLC automatic sludge dewatering screw press stands out as an ideal high-capacity solid-liquid separation solution for medium and large-scale wastewater treatment projects, delivering outstanding stability, durability and cost-saving advantages compared with traditional dewatering equipment. Built with full SUS304 stainless steel wetted parts, this screw press features excellent anti-corrosion and anti-rust performance, fully adapting to high-salinity, weak acid, weak alkali and oily industrial sludge environments that easily damage ordinary carbon steel equipment. 

Equipped with a complete PLC intelligent automatic control system, it realizes 24-hour unattended continuous operation including automatic sludge feeding, chemical dosing, self-cleaning and stable dewatering, greatly reducing manual labor and operational errors. 

With a large processing capacity of 50 cubic meters per hour, the equipment efficiently handles sludge concentrations ranging from 2000mg/L to 50000mg/L without requiring an independent thickening tank, simplifying the overall wastewater process and saving plant floor space. Adopting a unique movable and fixed disc self-cleaning structure, it completely avoids filter clogging problems common in belt presses and plate frame machines, ensuring long-term stable dewatering efficiency with extremely low operation and maintenance costs. 

Featuring low-speed silent operation, zero secondary pollution and adjustable sludge cake moisture, this high-flow screw press is perfectly suitable for municipal sewage upgrading, chemical, pharmaceutical, food and beverage, and high-salinity overseas wastewater projects, achieving reliable sludge reduction and environmentally compliant discharge.