GN Separation is excited to announce our participation in IE Expo China 2025, one of the leading environmental technology trade shows in Asia. The event will take place from April 21-23, 2025, at the Shanghai New International Expo Centre. We invite you to visit us at Booth W5-D76 to explore our innovative sludge dewatering solutions, including our Screw Press Sludge Dewatering Machine.
GN Screw Press Sludge Dewatering Machine – Efficient & Eco-friendly Solution
GN Screw Press Sludge Dewatering Machine is an economical and environmentally friendly sludge dewatering solution. This advanced equipment utilizes the principle of screw extrusion, leveraging the strong squeezing force generated by changes in screw diameter and pitch, as well as the precise gap between the floating and fixed rings, to achieve effective solid-liquid separation.
Key Features of GN Screw Press Dewatering Machine:
- Fully Automatic Operation – Equipped with an automatic control cabinet, flocculation modulation box, sludge thickening and dewatering device, and liquid collection tank.
- Continuous and Stable Performance – The machine performs sludge thickening and dewatering seamlessly while ensuring reliable filtrate discharge or return.
- Wide Application Range – Suitable for municipal, aquaculture, food processing, starch, oil, pharmaceutical, chemical, paper, and leather industries.
- Energy-Saving & Low Maintenance – Low operating costs with minimal energy consumption, reducing environmental impact.
Technical Specifications
GN offers a full range of screw press dewatering machines with varying capacities to meet different sludge treatment requirements. Below are some key technical parameters:
| Model | DS Standard Capacity (kg/h) | Sludge Capacity (m³/h) | Screw Diameter (mm) | Total Power (KW) | Weight (KG) |
|---|---|---|---|---|---|
| GNDL131 | 4-14 | ~2 | 130 | 0.4 | 205 |
| GNDL201 | 8-20 | ~4 | 200 | 0.57 | 290 |
| GNDL301 | 20-70 | ~10 | 300 | 0.95 | 820 |
| GNDL401 | 67.5-160 | ~33.7 | 400 | 1.65 | 1990 |
| GNDL404 | 266-640 | ~133 | 400 | 7.5 | 6170 |
For a complete list of models and specifications, please contact us.
Advantages of GN Screw Press Dewatering Machine
- Handles Various Sludge Types – Effective for a wide range of sludge, including oily sludge.
- No Clogging Issues – The self-cleaning moving ring prevents blockages.
- Compact and Space-Saving Design – Requires minimal installation space.
- Low Energy Consumption – More efficient compared to filter presses and decanter centrifuges.
Comparison of Sludge Dewatering Technologies
| Type | Energy Consumption | Automation | Investment | Oily Sludge Handling |
| Screw Press | Low | High | Low | Moderate |
| Filter Press | Moderate | Low | High | Low |
| Decanter Centrifuge | High | High | High | High |
Customizable Solutions from GN Separation
GN Separation offers a complete range of sludge dewatering equipment, allowing clients to choose the best solution based on their specific wastewater treatment requirements and investment budgets. Additionally, we provide integrated mobile sludge dewatering solutions tailored to customer needs.
Visit GN Separation at IE Expo China 2025!
We look forward to meeting you at Booth W5-D76 during IE Expo China 2025 in Shanghai. Discover how GN’s Screw Press Sludge Dewatering Machine can optimize your sludge treatment process with high efficiency and cost-effectiveness.
For more information, feel free to contact us. GN Separation looks forward to working with you!