Plastic recycling extruder machine is a key piece of equipment in the plastic pelletizing process. The plastic extruding is also called plastic pelletizer machine. To ensure high-quality plastic pellets, it is essential to select the right raw materials and maintain strict quality requirements.

Raw Material Selection

The first step in plastic pelletizing is to select suitable raw materials. The type of plastic used will determine the properties of the final product, so it is important to consider factors such as chemical composition, melting point, and viscosity. Common plastics used for pelletizing include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), and acrylonitrile-butadiene-styrene (ABS).

Quality Requirements

Once the raw materials have been selected, it is important to maintain strict quality requirements to ensure the final product meets the desired specifications. Here are some key quality requirements for plastic pelletizing process:

  • Moisture Content: The presence of moisture can cause defects in the final product, so it is important to ensure the raw materials are properly dried before processing.
  • Contamination: Contaminants such as dirt, dust, and metal can impact the quality of the final product, so it is essential to remove any foreign objects before putting the materials into plastic pelletizer machine.
  • Particle Size: The size of the raw materials should be consistent to ensure proper feeding into the plastic recycling extruder machine. Oversized or undersized particles can cause blockages and other issues.
  • Melt Flow Index: The melt flow index (MFI) measures the viscosity of the plastic and can impact the quality of the final product. It is important to select raw materials with a consistent MFI to ensure uniformity in the plastic pelletizing process.


In conclusion, selecting the right raw materials and maintaining strict quality requirements are essential for producing high-quality plastic pellets. By ensuring the materials are properly dried, free of contaminants, and have a consistent particle size and melt flow index, the plastic recycling extruding machine can produce pellets that meet the desired specifications.