Granulating Machine: Transforming Plastic Waste into High-Quality Regrind for Reuse

What is a Granulating Machine?
A granulating machine (or plastic granulator) shreds plastic waste into small, uniform granules (regrind) for reuse in injection molding, extrusion, or blow molding.
Types of Granulators
- Central Granulators
- Large-scale machines for high-volume recycling.
- Beside-the-Press Granulators
- Compact units for immediate scrap recycling in production lines.
- Slow-Speed Granulators
- Quiet operation for thick plastics (e.g., pipes, profiles).
- High-Speed Granulators
- Rapid processing for thin films and bottles.
Key Advantages
Material Savings – Up to 100% reuse of production scrap.
Space Efficiency – Compact models fit beside molding machines.
Low Noise – Some models operate at <75 dB.
Applications
- Injection Molding Scrap Recycling
- Blow Molding Regrind Production
- 3D Printing Filament Recycling
Operation Steps
- Feeding – Load plastic scrap into the hopper.
- Cutting – Rotating blades shred material into granules.
- Screening – Filters granules by size (3–10 mm).
- Collection – Stores regrind for reuse.
Maintenance Tips
- Sharpen blades monthly for optimal cutting.
- Clean screens to prevent clogging.