AMKCO WWS System
Originally developed for white water recovery in pulp and paper mills, the AMKCO WWS (White Water Sieve) has evolved into a versatile wet screening system ideal for a wide range of industries handling large slurry volumes.
The WWS uses centrifugal screening technology with fine mesh panels (down to 25 microns / 500 mesh) to continuously separate solids from liquids at high flow rates — without depending on specific gravity.
With a compact vertical design, rotating screen cage, and high-pressure spray cleaning, it offers unmatched efficiency for applications such as:
- Fiber recovery
- Starch slurry separation
- Wastewater pre-filtration
- Chemical and food industry liquids
Capacities range from up to 900 m³/hr, depending on model and slurry characteristics.
Working Principle
Feed slurry enters the unit from below under hydraulic pressure (approx. 3m head) and is evenly distributed inside a rotating screen cage. As the screen rotates, a mild centrifugal force drives liquid through the fine mesh, while solids are concentrated and pushed downward inside the cage.
Two high-pressure external spray bars clean the screen surface continuously — allowing each opening to be cleaned multiple times per second. This prevents screen clogging and maintains consistent flow even under high loading.
The filtered liquid (accepts) exits through the side outlet; solids (rejects) exit at the base.
Product Feature
Continuous High-Flow Wet Screening
Designed to handle large slurry volumes with minimal operator attention, ideal for closed-loop systems and 24/7 production.
Rotating Screen Cage with Backspray System
Screens are self-cleaned using pressurized spray nozzles, preventing blinding and reducing downtime.
Mesh Flexibility for Multiple Applications
Supports stainless steel mesh from 44 to 105 microns (325 to 165 mesh), adaptable for various product types and fiber concentrations.
Product Advantage
High Throughput in Compact Footprint
Vertical design with inline flow offers high flow rates (up to 900 m³/hr) without occupying large floor space.
No Fresh Water Needed for Cleaning
Uses recycled screened liquid for spray cleaning, minimizing water usage and cost.
Adaptable Beyond Pulp & Paper
Now proven in starch slurry systems, chemical filtration, food effluent recovery, and more — wherever fine, consistent wet screening is required.
FAQ
Can the WWS be used outside of pulp and paper applications?
Absolutely. It’s now used in starch, food, wastewater, chemical, and mineral applications for wet separation and solids recovery.
What is the finest mesh size available?
Screens down to 500 mesh (25 microns) are available, ideal for capturing fine suspended solids.
How does it compare to vibrating screens?
The WWS offers higher capacity and continuous flow with minimal blinding, making it ideal for very high-volume wet screening where traditional vibrating machines may clog.
What type of water does the spray system use?
It typically uses filtered water from the process itself, so no additional fresh water is required for operation.
How much maintenance is required?
Very little. The rotating cage + backspray system ensures continuous cleaning. Occasional nozzle checks and standard lubrication are all that’s needed.
What’s the inlet pressure requirement?
Around 3 meters of head (4.6 psi). It can be gravity-fed or pumped as needed.