The Sludge Dewatering Machine, also known as the Screw Press Sludge Dewatering Machine, is an advanced solid-liquid separation equipment widely used in municipal wastewater treatment and various industrial applications, including petrochemical, light industry, chemical fiber, papermaking, pharmaceutical, and leather industries. This equipment efficiently reduces sludge volume and moisture content, thereby minimizing disposal costs and environmental impact.
KEY FEATURES
- Wide Applicability: Suitable for dewatering sludge from various industries.
- Non-Clogging Design: Unique moving and stationary ring filter structure prevents clogging.
- Continuous Automatic Operation: Capable of 24-hour unattended continuous operation.
- Cost-Effective: Integrated design with a compact structure significantly reduces operating costs.
- Space-Saving: Small footprint reduces civil engineering investment.
- Durable Construction: Main body constructed from stainless steel, ensuring long service life.
TECHNICAL SPECIFICATIONS
| Model | Capacity (kg-DS/h) | Screw Diameter × QTY | Power (kW) |
| DW-131 | 4~14 | φ130×1 | 0.4 |
| DW-201 | 8~20 | φ200×1 | 0.6 |
| DW-202 | 16~40 | φ200×2 | 0.94 |
| DW-301 | 20~70 | φ300×1 | 0.95 |
| DW-302 | 40~140 | φ300×2 | 1.65 |
| DW-351 | 40~120 | φ350×1 | 1.65 |
| DW-352 | 80~240 | φ350×2 | 2.75 |
| DW-353 | 120~360 | φ350×3 | 4.05 |
| DW-401 | 68~160 | φ400×1 | 1.65 |
| DW-402 | 135~320 | φ400×2 | 2.75 |
| DW-403 | 200~480 | φ400×3 | 4.05 |
| DW-404 | 265~640 | φ400×4 | 5.5 |
Note: Capacity varies based on sludge characteristics
TYPICAL APPLICATIONS
- 🏭 Municipal sewage treatment plants
- 🍲 Food and beverage processing
- 🛢 Petrochemical refineries
- 📄 Paper and pulp industry
- 💊 Pharmaceutical factories
- 👞 Leather and tanning industry
WARRANTY
All recycling machines come with a 1 year limited warranty.
INQUIRIES
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Frequently Asked Questions
How does a screw press sludge dewatering machine work?
Sludge is conveyed by a screw through a filter made of moving and stationary rings. Water passes through the ring gaps while solids are retained and progressively squeezed drier along the screw. The unique ring structure is self-cleaning, which prevents the clogging that plagues conventional filter presses and allows continuous, unattended operation.
What capacities are available?
Twelve models are offered, from the DW-131 (4–14 kg-DS/h, φ130 screw, 0.4 kW) up to the DW-404 (265–640 kg-DS/h, four φ400 screws, 5.5 kW). Note that capacity varies based on sludge characteristics — share your sludge type and solids content with the engineering team to size the right model.
What industries use this equipment?
Typical applications include municipal sewage treatment plants, food and beverage processing, petrochemical refineries, paper and pulp mills, pharmaceutical factories, and the leather and tanning industry. Its wide applicability makes it suitable for dewatering sludge from many different industrial processes.
What makes it non-clogging?
The moving and stationary ring filter structure continuously wipes the filtration gaps clean as the screw turns, so solids cannot blind the filter surface. This self-cleaning action is what enables 24-hour unattended continuous operation without the frequent washdowns other dewatering technologies require.
What are the installation and power requirements?
Power demand is modest — from 0.4 kW on the smallest model to 5.5 kW on the largest — and the compact, integrated structure keeps the footprint small, reducing civil engineering investment. Plan for sludge feed piping, filtrate return or discharge, and a cake collection area at the discharge end.
What warranty is included?
All recycling machines come with a 1 year limited warranty. Contact the team for the full warranty terms and for information on spare parts availability, such as replacement rings and screw components.