When configuring a PET washing line, buyers often ask if they can skip the pipeline dryer and the zig zag separator plastic recycling module to save on initial capital. The answer depends strictly on the required specifications of your final product. Let’s examine the technical output of a standard dewatering machine versus a complete drying and classifying system.

Moisture Control and the PET Flake Dryer Machine A standard centrifugal dewatering machine utilizes a 15kW motor to spin the material, achieving a dryness level of 95-98%. This leaves a moisture content in rpet flakes of roughly 2% to 5%. For low-end applications, this is acceptable.

However, if you are selling to fiber spinning plants or sheet extruders, moisture must be strictly below 1% to prevent polymer hydrolysis during melting. Adding a 30kW heated 30kW heated pet flake dryer machine forces hot air through a 20-meter stainless steel pipeline, achieving a 99.5% drying rate and reducing moisture to 0.5-1%.

The Role of the Zig Zag Separator Plastic Recycling System After the flakes are dried, they still contain micro-contaminants. The zig zag separator plastic recycling system, also known as a plastic flake air classifier, uses aerodynamics to tackle pet dust removal. As the heavy PET flakes fall through the zig-zag chamber, a 2.2kW fan blows upward. This airflow separates and extracts residual fine trademarks, loose paper, and plastic dust.

Skipping the zig zag separator plastic recycling system leaves dust in your final bags, which causes black spots during extrusion. While these two machines add approximately 11,000 to 12,000 to the total equipment cost, they are the exact components that elevate your flakes from standard commercial grade to premium A-grade status.