Screw Sludge Dewatering Machine (301 Specifications)

Screw Sludge Dewatering Machine (301 Specifications)

The Model 301 Stacked Screw Sludge Dewatering Machine is designed for medium to high sludge volume treatment with excellent energy efficiency and durable stainless-steel construction. It provides continuous dewatering performance across various sludge concentrations, ensuring stable operation, low maintenance, and optimized polymer consumption.

This model is engineered for industrial and municipal wastewater treatment plants requiring throughputs up to 75 kg DS/h with reliable automation and compact footprint.

Key Features

  • High-performance dewatering capacity (up to 75 kg DS/h)

  • Built entirely with Stainless Steel 304 for maximum corrosion resistance

  • Energy-efficient motor and inverter control for stable operation

  • Integrated automatic polymer dosing and control system

  • Low maintenance, compact, and noise-free operation

  • Designed for indoor installation with easy access and cleaning

Description

Sludge Dewatering Machine (Model 301 – Stacked Screw Type)

Technical Specifications

Specification Details
Model 301
Overall Size L3400 × W900 × H1800 mm
Total Power 1.65 kW
Throughput DS 30–75 kg/h
Sludge Inlet Concentration 5,000–50,000 mg/L
Sludge Intake 1–3 m³/h
Maximum Polymer Dosage 360 L/h
Power Supply Main: 1φ 380V/50Hz
Control: 1φ 220V/50Hz
Water Supply Pressure 0.1–0.2 MPa
Net Weight 750 kg
Running Weight 1,600 kg
Installation Type Indoor standard installation
Automation Automatic control 1φ 220V/50Hz

Stacked Screw Assembly

Component Specification / Material
Snail Body (Fixed Ring) Φ250 × 1500 mm (Effective filtration
length)
Ring Thickness 2.75 mm – Stainless Steel 304
Processing Method Laser cutting with nitrogen protection
Bracket Plates 6 mm – Stainless Steel 304
Gasket 3.0 mm – Stainless Steel 304
Spindle F250 – Stainless Steel 304 with
high-strength alloy overlay welding
Connecting Rods Φ12 × 6 – Stainless Steel 304

Motors and Drive System

Component Model / Origin Specification
Multiplying Screw Motor K77R37 (Norway) Frequency conversion, IP54, 0.55 kW, 0–3.2
r/min
Flocculation Mixer Motor RV75 (Norway) IP54, 1.1 kW
Frequency Converter Hiruida Intelligent variable frequency control
Reducers (Screw & Stirring) Finished Products (Norway) High durability, low noise

Flocculation Mixing Tank

Specification Details
Tank Size 600 × 600 × 930 mm
Capacity Approx. 350 L
Material Stainless Steel 304
Mixer Motor RV75 (Norway), IP54, 1.1 kW

Environmental & Installation Conditions

Condition Specification
Operating Temperature -10°C to +40°C (no freezing)
Humidity ≤ 90% RH (non-condensing)
Installation Height Below 1200 m above sea level
Environment Indoor installation only
Flush System Material Stainless Steel 304 + PVC
Rack Material Stainless Steel 201 (riveted type)

Control Cabinet

Component Details
Cabinet Size W600 × H700 × D250 mm
Material Carbon steel (sprayed) / Stainless Steel
201
Control Switches Spindle, stirring, sludge pump, and dosing
pump switches
Main Electrical Components CHINT (Finished Products)
Spindle Inverter Hiruida
Automatic Control Voltage 1φ 220V/50Hz

Nozzle Connection Parameters

Port Type Size / Material
Sludge Port DN40 inner wire
Chemical Inlet DN20 PVC direct
Filtrate Drain DN80 inner wire
Water Outlet DN20 PVC direct
Reflux Port DN80 PVC direct
Mixing Tank Drain DN40 inner wire

Main Component Materials & Manufacturers

# Component Material Manufacturer / Brand
1 Fixation Rings Stainless Steel 304 Texas Dingyue Environmental
2 Pleasure Rings Stainless Steel 304 Texas Dingyue Environmental
3 Screw Shaft Stainless Steel 304 Texas Dingyue Environmental
4 Filtrate Bath Stainless Steel 201 Texas Dingyue Environmental
5 Mixing Tank Stainless Steel 304 Texas Dingyue Environmental
6 Stirring Shaft & Pulp Blade Stainless Steel 304 Texas Dingyue Environmental
7 Motor Support Seat Stainless Steel 304 Texas Dingyue Environmental
8 Sludge Inlet Pipe Stainless Steel 304 Texas Dingyue Environmental
9 Support Plates Stainless Steel 304 Texas Dingyue Environmental
10 Rinse System Stainless Steel 304 Texas Dingyue Environmental
11–12 Reducers Finished Products Norway
13–14 Motors Finished Products Assorted OEM
15 Electrical Components Finished Products CHINT
16 Spindle Inverter Finished Product Hiruida

Key Features

  • High-performance dewatering capacity (up to 75 kg DS/h)

  • Built entirely with Stainless Steel 304 for maximum corrosion resistance

  • Energy-efficient motor and inverter control for stable operation

  • Integrated automatic polymer dosing and control system

  • Low maintenance, compact, and noise-free operation

  • Designed for indoor installation with easy access and cleaning

Applications

Ideal for:

  • Municipal wastewater treatment plants

  • Industrial process wastewater treatment

  • Food and beverage industry sludge management

  • Chemical and textile industry effluent treatment

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