PET Film Shredder
PET film is commonly found in packaging materials, protective layers, and industrial applications. Recycling PET film is a multi-step process that transforms used or waste PET film into reusable raw materials like PET flakes or pellets. While PET bottles are widely recycled, PET films (such as packaging films, protective films, and industrial laminates) require more careful handling due to their thin, flexible, and sometimes multilayered nature. A PET film shredder is a machine designed to reduce polyethylene terephthalate (PET) film into smaller, manageable pieces or flakes for easier handling, recycling, or further processing (e.g., granulating or washing).
♻️ Typical Applications:
- Waste film from PET packaging production (e.g., thermoforming offcuts)
- Post-industrial PET film rolls and sheets
- Rejected PET-based laminated film
- PET protective film from electronics or glass industries
♻️ Final Output Use:
- Feedstock for granulators to create PET flakes
- Material for washing and recycling lines
- Input for re-pelletizing or fiber production
♻️ How to Recycle PET Film – Step by Step:
1. Collection and Sorting
- Gather post-industrial or post-consumer PET films.
- Sort by material purity: some PET films are laminated with PE, aluminum, or adhesive coatings and need to be separated.
- Remove any non-PET materials (e.g., paper, PVC, labels).
2. Shredding / Size Reduction
- Use a PET film shredder or granulator to reduce films into small flakes or strips.
- Low-speed, high-torque shredders are ideal to prevent film from wrapping around the blades or melting.
3. Washing and Cleaning
- Clean PET flakes in hot or cold water to remove:
- Adhesives
- Inks and coatings
- Dirt or dust
- Friction washers, sink-float tanks, and hot washing units are commonly used.
4. Drying
- Remove moisture using centrifugal dryers or thermal dryers.
- Moisture content should be reduced to <1% for pelletizing.
5. Extrusion / Pelletizing (Optional)
- If high purity is achieved, flakes can be melted and extruded into PET pellets.
- These can be reused in film blowing, injection molding, or fiber production.
6. Reuse or Sale
- Cleaned flakes or pellets can be reused internally or sold to PET recyclers or plastic manufacturers.
♻️ Typical Types of PET Film Shredders
Here are the typical types of PET film shredders, each designed to handle the thin, flexible nature of PET film efficiently and reduce clogging, heat buildup, or static issues:
- Most commonly used for PET film shredding.
- Features a rotating rotor and hydraulic pusher to press film against the rotor.
- Low-speed, high-torque operation minimizes heat generation.
- Handles film rolls, sheets, and offcuts well.
- Can be paired with conveyors and granulators.
Best for: Post-industrial PET film, sheet trimming waste, roll ends.
2. Double Shaft Shredder (Twin Shaft)
- Two counter-rotating shafts with hook-style blades.
- Excellent at tearing and pulling flexible films.
- Produces relatively larger particle sizes (usually a pre-shredding stage).
- Less likely to jam, even when film is contaminated or bundled.
Best for: Heavily contaminated PET film, laminated PET films, bales.
3. Granulator with Force Feeder (Film Crusher)
- Combines film feeding assistance (often via screw or roller) with granulating blades.
- Continuous cutting action.
- Requires clean and relatively flat PET film.
- Compact and efficient when installed after a shredder.
Best for: Clean, thin PET films directly from production lines.
4. Integrated Shredder-Granulator System
- Shredding and granulating units in one compact machine.
- Reduces manual handling and improves efficiency.
- Built-in conveyors, metal detectors, and control panels.
- Great for automated PET film recycling lines.
Best for: Facilities with continuous high-volume film waste.
✅ Add-on Options:
- Cooling systems to prevent film melting.
- Anti-static devices for light films.
- Dust collectors to reduce airborne particles.
- Roll feeding inlets for direct loading of PET film rolls.
- Conveyor belt feeding system
- Metal detectors to protect blades
- PET film baler to compress the films
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