Screw Press

Screw Press

A screw press is an automated dewatering system that uses a slow-rotating shaft and self-cleaning ring mechanism to separate liquids from solids. Operating at low speeds with PLC control, it continuously processes sludge with minimal clogging, quiet operation, and ultra-low power consumption.

TBEL supplies high-efficiency screw presses adaptable to various plant capacities and layouts. The range includes energy-efficient motor options and specialized screw designs for petrochemical, paper, starch, algae, and inorganic sludge.

AVAILABLE BRANDS:

XUDA (China)
Techase (China)

Description

Short Description & Specifications

DS Capacity Range0.5 kg-DS/hr to 800 kg-DS/hr
Inlet Solid Concentration5,000 mg/L to 50,000 mg/L (0.5% – 5%)
Operating Screw Speed2 to 4 rpm (Ultra-low speed operation)
Power Consumption Rate0.01 to 0.1 kWh/kg-DS
Total Motor Power Range0.20 kW to 5.23 kW
Operation Mode24-hour continuous, automatic PLC control
De-watering StructureSelf-cleaning fixed and moving ring mechanism (clog-free design)
Equipment Net Weight Range50 kg to 6,500 kg
Special Application OptionsSpecialized screw shafts for Petrochemical, Paper, Starch, Algae, and Inorganic sludge

Features & Key Advantages

Wide Concentration Range

Handles solid concentrations from 5,000 mg/L to 50,000 mg/L via an integrated pre-thickening device.

Self-Cleaning & Clog-Free

Fixed and moving ring design self-cleans continuously, preventing filter mesh clogging even with oily sludge.

Low Power Consumption

Operates at 2–4 rpm with energy usage as low as 0.01–0.1 kWh/kg-DS (1/8 of belt press, 1/20 of centrifuge).

Full PLC Automation

Supports 24-hour continuous unmanned operation, managing polymer dosing, thickening, dewatering, and discharge.

Reduced Capital Costs

Directly dewaters dilute sludge, eliminating separate thickening tanks, civil construction costs, and odor issues.

Low Noise & Vibration

Low rotational speed reduces mechanical wear and maintains a smooth, virtually silent operational environment.

Specialized Shaft Designs

Custom screw geometries designed for petrochemical, paper, starch, algae, and abrasive inorganic applications.

Minimal Water Wash Consumption

Self-cleaning ring mechanism requires significantly less wash water compared to traditional filter belt presses.

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