📊Overview of Core Relationships and Differences
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Granulator
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Extruder (for molding) |
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Core Functions |
Preparing standard raw materials: Melt, filter, extrude and cut plastic recycled materials, leftover materials or mixed materials into uniform plastic pellets. | Manufacturing final products: Heat and plasticize plastic pellets, and continuously extrude them into final shapes such as pipes, plates, and profiles through specific molds. | |
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Material Input |
Plastic crushed materials, recycled materials, powder materials, mixed materials, etc. |
Standardized plastic pellets (usually provided by a granulator) |
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Material Output |
Uniform plastic pellets with consistent size. |
Continuous plastic products (e.g., pipes, sheets) |
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| Production Link |
It is in the pre-treatment or recycling and regeneration link. |
It is in the core link of product molding. |
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| Design Focus |
High-efficiency pelletizing, impurity filtration, and homogenizing mixing |
Precision plasticization, stable extrusion, and precise control of product shape and size. |
The cooperative relationship between the two in the production process
Plastic crushed/recycled materials → Granulator (processed into standard pellets) → Standard plastic pellets → Extruder (heated for extrusion molding) → Final plastic products → (Generated leftover materials/waste products) → Return to the granulator for re-granulation and recycling.