Centrifugal Dewatering Machine for Rigid Plastic Flakes
Mechanical dewatering stage before thermal drying. Actual outlet moisture and energy impact depend on material type, flake size, inlet moisture, screen condition, rotor speed, and downstream dryer settings.
Key Features and Benefits
Reduce free water mechanically before thermal drying to lower heat load and stabilize throughput. Actual results depend on inlet moisture, material type, flake size, and operating parameters.
Moisture Reduction
Centrifugal force expels free water through the screen during rotation. Typical outlet moisture for rigid flakes is often in the 2-3% range under stable feed and proper screen/rotor condition; results depend on inlet moisture, flake size, and screen specification.
Thermal Load Reduction
By mechanically removing most of the water, this machine reduces thermal drying demand. Actual energy impact depends on inlet moisture, dryer efficiency, airflow and temperature settings, and target final moisture.
Fines and Residue Reduction
At high rotor speed (up to about 1,400 RPM), friction and screen contact can help dislodge fine paper and light residues while water is expelled. Effect depends on feed contamination, residence time, and screen configuration.
Working Principle
Material Feed
Wet washed plastic flakes are fed into the machine inlet.
High-Speed Rotation
A central shaft with paddles spins at high velocity, up to around 1400 RPM.
Water Expulsion
Centrifugal force throws flakes against mesh and expels free water for collection.
Convey and Discharge
Spinning paddles convey drier flakes along the screen toward discharge.
Machine Gallery
Technical Specifications
| Model | Motor Power | Main Shaft Diameter | Rotating Speed | Capacity (KG/H) |
|---|---|---|---|---|
| EC-CD400 | 37 kW | 400 mm | 1400 RPM | 400 - 800 |
| EC-CD550 | 45 kW | 550 mm | 1200 RPM | 600 - 1000 |
| EC-CD750 | 55 kW | 750 mm | 1080 RPM | 1200 - 2000 |
Capacity may vary depending on material type, flake size, and initial moisture levels.
Warranty and Installation
1-Year Limited Warranty
All centrifugal dewatering machines include a one-year limited warranty covering mechanical components against manufacturing defects.
Commissioning Support
We provide installation guidance, recommended parameter setup, and after-sales support for stable startup and operation.
Frequently Asked Questions
What types of plastic is this dewatering machine best for?
This machine is designed for rigid plastic flakes such as crushed PET from bottles and rigid PP/PE flakes from drums, pipes, or crates. It is not suitable for soft plastics like PE films, which typically require a squeezer dryer.
What is the typical moisture level after using this machine?
For rigid flakes, outlet moisture is often in the 2-3% range when the machine is configured correctly and feed conditions are stable. Actual performance depends on inlet moisture, flake size, screen condition, rotor speed, and discharge setup.
How is the mesh screen maintained?
The machine provides access to the screen housing for cleaning, inspection, and replacement. This helps reduce maintenance downtime and keeps operation stable.
Improve Your Drying Efficiency Today
Contact our team to confirm sizing, utilities, and expected outlet moisture on your feedstock, and to review how the dewatering machine integrates into your washing and drying line.
Comments are closed.