Centrifugal Dryer & Dewatering Machine
Rapidly remove excess moisture from plastic flakes and film to achieve <2% humidity, ensuring high-quality output for pelletizing.
Maximize Quality and Efficiency
Our dewatering machine is a critical component for any serious recycling operation, designed to save you money and improve your final product.
Enhanced Product Quality
Minimizes moisture-related defects, resulting in high-quality, high-strength recycled plastics ready for extrusion.
Increased Throughput
Drier materials process more smoothly in downstream equipment, reducing downtime and boosting overall productivity.
Drastic Energy Savings
Mechanical dewatering is far more efficient than heat, drastically reducing the energy needed for final drying.
Reduced Waste
Ensures your final product meets strict quality standards, minimizing rejection rates and the need for reprocessing.
The High Cost of Excess Moisture
Wet plastic is a direct threat to your product quality and profitability. Our machine provides the definitive, cost-effective solution.
Problem: Defective Final Products
Excess moisture turns to steam during extrusion, creating voids and bubbles ("silver streaks") that result in brittle, low-quality pellets.
Solution: Consistent, Dry Material
By mechanically removing over 98% of water, our dryer delivers a consistent, low-moisture feedstock for perfect, defect-free pelletizing.
Problem: Sky-High Energy Bills
Using heat to evaporate large amounts of water from washed plastics is incredibly energy-intensive and expensive.
The Principle of High-Speed Mechanical Dewatering
Our machine leverages the simple yet powerful principle of centrifugal force to efficiently separate water from plastic in a continuous process.
1. Material Input
Washed plastic flakes or film pieces are fed into the top of the vertical drying chamber.
2. High-Speed Rotation
A central rotor equipped with paddles spins at over 1000 RPM, creating a powerful vortex.
3. Centrifugal Separation
The force flings the plastic against a perforated screen. The heavier plastic stays in, while the lighter water is pushed out through the screen's holes.
4. Dual Discharge
The now dewatered plastic is conveyed up and out of one exit, while the separated water is collected and drained from another.
Machine Showcase
Essential for Any Plastic Washing Line
This machine is a critical link between the washing and pelletizing stages for a wide variety of plastic types.
PET Bottle Flake Washing
A crucial step after the final rinse to prepare flakes for pelletizing or direct sale, ensuring moisture content is below 2%.
Plastic Film Recycling
Effectively dewaters washed and shredded LDPE, LLDPE, and PP films, preventing clumping and preparing them for agglomeration or extrusion.
Rigid Plastic Recycling
Efficiently dries various rigid plastic regrinds, including HDPE, PP, ABS, and PS, post-washing.
Technical Specifications
| Model | Motor Power (KW) | Main Shaft Diameter (mm) | Rotating Speed (RPM) | Capacity (KG/H) |
|---|---|---|---|---|
| 400 | 37 | 400 | 1400 | 400 – 800 |
| 550 | 45 | 550 | 1200 | 600 – 1000 |
| 750 | 55 | 750 | 1080 | 1200 – 2000 |
Frequently Asked Questions
Why is low moisture content so important for recycled plastics?
During the melting and extrusion phase of pelletizing, any remaining moisture instantly turns to steam. This creates bubbles and voids in the plastic, resulting in a brittle, foamy, and low-quality final product that is often unsellable. Proper dewatering is essential for producing strong, dense, high-quality pellets.
How dry can this machine get the plastic?
Our centrifugal dryer is highly efficient and can typically reduce the moisture content of plastic flakes and rigid plastics to below 2%. This is the ideal level for most downstream extrusion and pelletizing lines.
Does this machine completely replace a thermal dryer?
It works as a highly efficient pre-drying step. The centrifugal dryer removes the vast majority of surface water using mechanical force, which is extremely energy-efficient. This drastically reduces the workload, time, and energy required for a final thermal drying stage (if one is needed at all), leading to significant cost savings.
Optimize Your Drying Process
Stop wasting energy and compromising on quality. Contact us today to find out how our centrifugal dryer can boost your line's efficiency and profitability. Get a custom quote now.
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