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Solid-Liquid Separator

Solid‑Liquid Separator

The Solid-Liquid Separator is a high‑efficiency screw‑press dewatering system designed to separate solid matter from liquid suspensions across a wide range of industrial applications. Whether you're processing livestock manure, digestate, food waste, or industrial sludge, this machine delivers dry solids for disposal or reuse and clean liquid for irrigation or further treatment.

Industrial solid-liquid separator screw press machine with stainless steel housing on white background

Built with durable stainless steel components and powered by a low‑speed, high‑torque gear motor, our separator achieves dry matter content of up to 40–50% in the solid phase, significantly reducing waste volume and hauling costs.

Key Features & Benefits

Feature Benefit
Screw‑press extrusion technology Continuous operation with minimal labor; no coagulants required
Stainless steel wedge‑wire screen Self‑cleaning design; multiple mesh sizes (0.25–1.0 mm) for different solid types
Heavy‑duty geared motor Low speed (5–15 RPM) = low wear, long service life, energy efficiency
Integrated hopper with overflow protection Stable feed without sensors; handles variable input consistency
Adjustable counter‑pressure cone Control dryness of output solids to suit your application
Electrical overload & leakage protection Safe operation; minimal downtime

Self-cleaning wedge wire screen mesh for solid-liquid separator dewatering equipment

Why choose screw‑press over other technologies?

Unlike centrifugal or belt‑filter separators, the screw‑press design operates at low speed, reducing maintenance costs and noise. It handles high solid content (up to 15% dry matter input) without clogging, and the stainless steel screen requires no cleaning chemicals—just a simple water rinse.

Solid-liquid separator dimension drawing with length width height specifications for installation planning

Technical Specifications

Model Motor Power Capacity (m³/h)* Screen Diameter Weight Dimensions (L×W×H)
FR‑180 4 kW 5 180 mm 230 kg 1800×1300×500 mm
FR‑200 5.5 kW 7 200 mm 360 kg 2100×1400×500 mm
FR‑280 7.5 kW 12 280 mm 400 kg 2300×1400×600 mm
FR‑300 7.5 kW 15 300 mm 420 kg 2400×1400×600 mm
FR‑400 11 kW 20 400 mm 600 kg 2700×1400×800 mm

Capacity varies with input dry matter content and material type. Please consult our engineers for application‑specific recommendations.

Screen Options: 0.25mm, 0.50mm, 0.75mm, 0.90mm wedge‑wire screens available.

Materials of Construction: 304 or 316L stainless steel contact parts (standard); carbon steel housing available for budget‑conscious projects.

How It Works

Feed: Material is pumped or gravity‑fed into the hopper, which maintains a consistent head pressure for uniform feeding.

Conveying & Compression: The screw conveyor rotates at low speed, moving material toward the discharge end. As the screw pitch decreases, the volume inside the housing reduces, creating mechanical compression.

Filtration: Liquid is forced through the wedge‑wire screen and collected in the drain pan. The screen's slot design prevents clogging and allows continuous flow.

Discharge: The compressed solids exit through the adjustable counter‑pressure cone. By adjusting the cone pressure, operators control the dryness of the output solids—higher pressure = drier solids.

Solid-liquid separator working principle diagram showing feed hopper, screw conveyor, wedge wire screen, liquid discharge and solid outlet

Applications

Our Solid‑Liquid Separators are used in:

Industry Application
Agriculture Pig, cow, chicken manure dewatering; biogas digestate separation
Food Processing Fruit/vegetable pulp dewatering; juice extraction; brewery spent grain
Wastewater Treatment Sludge thickening; industrial effluent treatment
Biogas Plants Digestate separation for fertilizer production
Municipal Waste Kitchen waste dewatering; garbage pretreatment
Chemical & Pharmaceutical Sludge dewatering; product recovery

Typical Output Uses

Solid phase: Organic fertilizer, animal bedding, fuel pellets, composting feedstock

Liquid phase: Irrigation water, flush water recycling, further treatment

Biogas digestate separation using industrial screw press separator at renewable energy plant

Why Choose Our Solid‑Liquid Separator?

10+ Years Manufacturing Experience – Built in our ISO‑certified factory in Henan, China.

Turnkey Support – We provide operation videos, installation manuals, and 24/7 technical support.

Global Shipping – Export packing (plastic film + steel/wooden cases) for sea freight; small units can ship by DHL.

1‑Year Warranty – Full coverage on core components; spare parts available year‑round.

Customization – Choose screen mesh, material (304/316L), motor voltage (220V/380V/415V), and capacity to match your site requirements.

Export packing of solid-liquid separator in wooden case for international shipping from China

Request a Quote

Tell us your material type, daily processing volume, and target dry matter content. We'll recommend the right model and provide a competitive quote within 24 hours.

Frequently Asked Questions

Q: What materials can this separator handle?

A: Cow dung, pig manure, chicken litter, digestate, food waste, fruit pulp, sludge, and most organic slurries with dry matter between 1–15%.

Q: Can I adjust the dryness of the output solids?

A: Yes. The counter‑pressure cone is adjustable. Higher pressure yields drier solids but reduces throughput. Our engineers can help you find the optimal setting.

Q: How often does the screen need cleaning or replacement?

A: The wedge‑wire screen is self‑cleaning. Depending on your material, a simple water rinse every 8–24 hours is typical. Screen life is 3–5 years under normal use.

Q: Do you offer smaller units for farms?

A: Yes. Our FR‑180 model processes 5 m³/h and weighs only 230 kg—ideal for small to medium farms.

Q: What's your delivery time?

A: Standard models: 15–20 days. Custom orders: 30–45 days. We stock common spare parts for immediate shipment.

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Contact Us

Whatsapp:+86 15236742901

Email:sale@xxdahan.com

Address:China,Yanjin county forest park gate to the west 1000 meters north road.