The Role of Plastic Drying Pipe in a PET Flakes Manufacturing Plant
In a modern PET bottle recycling facility, drying is a crucial step in ensuring the final recycled material meets industry standards for quality and usability. One of the most effective tools in this process is the plastic drying pipe system—a high-efficiency, self-heating pipeline that removes moisture from plastic flakes or pellets before they move into downstream processes such as extrusion or pelletizing.


Why Drying Matters in Plastic Recycling?
Whether you are operating a small recycling workshop or a full-scale PET flakes manufacturing plant, controlling the moisture content of your plastic material is critical. Excess water can lead to:
- Poor extrusion quality
- Surface defects in final products
- Unstable pellet formation
- Increased energy consumption
That’s why more and more PET bottle recycling facilities are adopting advanced drying systems like the plastic drying pipe.
What Is a Plastic Drying Pipe System?
The plastic drying pipe is a stainless-steel, self-heated pipeline designed to remove moisture from cleaned and crushed plastic materials. It can be installed after a dewatering machine or horizontal dryer as an optional, high-efficiency drying step. Key features include:
- Self-adjustable heating temperature
- Robust stainless-steel structure
- Fast and uniform drying
- Low maintenance
Applications in the PET Bottle Recycling Facility
PET Flakes Drying: In standard PET flakes manufacturing plants, horizontal dryers typically reduce moisture to 2–5%. However, for higher-end applications—such as food-grade flake production or filament extrusion—the moisture must be under 0.5%. The plastic drying pipe enables this advanced level of drying, improving product quality and production reliability.
Plastic Pellet Drying: For recycled plastic pellets, proper drying ensures the material is ready for reprocessing without defects. A well-integrated drying pipe system helps lower the moisture content to industry-accepted levels before extrusion or injection molding.
Post-wash Drying: After plastic bottles or films are washed, the plastic drying pipe accelerates moisture removal, preparing the material for grinding, extrusion, or pelletizing. It’s especially helpful in high-humidity environments or for materials prone to water retention.
Improve Your Recycling Efficiency with Drying Pipe Technology
If you’re running or planning to start a PET bottle recycling facility, upgrading your line with a plastic drying pipe system can dramatically improve output quality, reduce defects, and lower energy consumption. It is a smart addition to any PET flakes manufacturing plant that aims to deliver consistent and high-quality end products.
Want a Custom Drying Solution for Your Recycling Plant?
At Shuliy Machinery, we offer a full range of drying solutions for your PET recycling line—including plastic drying pipes, dewatering machines, and horizontal dryers—designed to meet the needs of modern recycling businesses. Contact us today for a tailored solution!