In plastic recycling, producing high-quality, uniform granules from washed films is a crucial step. For downstream injection molding, consistent particle size and moisture content can make all the difference in efficiency, product quality, and machine lifespan. This is where Film squeezing pelletizing dryer technology comes into play. By combining screw pressing, dehydration, and variable-speed pelletizing blades, these machines turn washed films into 3–5 mm pellets that meet strict injection molding standards.
The Challenge of Plastic Film Recycling
Plastic films, including PE agricultural films, LDPE waste films, and PP woven bags, are soft, flexible, and prone to sticking together. When recycled, these films are first washed to remove dirt, sand, or other residues. However, after washing, the films are still wet and difficult to feed directly into granulating or extrusion equipment. Uneven moisture or tangled films can reduce the efficiency of downstream injection molding, causing inconsistent products or machine downtime.
To solve this problem, a Film squeezing pelletizing dryer is used. It efficiently removes water while turning films into uniform pellets.
How a Film Squeezing Pelletizing Dryer Works
The machine works on the principle of screw extrusion and dehydration:
- Feeding and Conveying: Washed films are fed into the machine and pushed forward by a rotating screw. The screw design includes variable distances to ensure smooth feeding without stuck materials.
- Squeezing and Water Removal: The screw presses the films against a filter screen. This action removes almost 98% of the water, making the material dry enough for pelletizing.
- Semi-Plasticizing: A combination of friction heat from the screw and auxiliary electric heating softens the film slightly. This prepares the material for smooth cutting by the pelletizing blades.
- Pelletizing: Variable-speed blades cut the semi-plasticized films into uniform 3–5 mm granules. The inverter-controlled blade speed allows precise control, producing consistent particle size for injection molding.
- Cooling and Transport: After cutting, the pellets are cooled by air and transported to a cyclone silo for storage or feeding into an extruder.
Why Variable-Speed Pelletizing Blades Are Important
The key feature of the Film Squeezing Pelletizing Dryer is its inverter-controlled, variable-speed pelletizing blades. This technology ensures:
▸ Uniform Particle Size: Consistent cutting speed prevents oversized or undersized pellets.
▸ Smooth Feeding to Extruders: Pellets flow evenly into injection molding machines, reducing downtime.
▸ Energy Efficiency: By controlling the cutting speed and screw pressure, the machine reduces energy consumption.
▸ Stable Quality: Even tricky films, like PE agricultural films or PP raffia bags, can be processed without clumping or moisture inconsistency.
Technical Highlights
▸ Screw Diameter & Length: Designed for high torque and precise pressing.
▸ Motor & Pelletizing Blade Power: Optimized to handle capacities from 300 kg/h to 1000 kg/h.
▸ Final Moisture: Pellets achieve 1–2% moisture, ideal for injection molding.
▸ Automation: The machine integrates with washing and granulating lines, saving labor and improving production consistency.
Applications in Plastic Recycling
The Film squeezing pelletizing dryer is suitable for multiple recycling lines:
▸ LDPE waste film recycling and washing
▸ PE agricultural film cutting and washing
▸ Waste PE film recycling
▸ Ethylene ground film drying and granulating
▸ PP woven bag/raffia bag washing and pelletizing
This versatility makes it an essential piece of equipment for plastic recyclers who need to produce injection-grade pellets efficiently.
Benefits for Injection-Grade Material Production
By using a Film squeezing pelletizing dryer, recyclers can achieve:
▸ High-quality, uniform granules ready for injection molding
▸ Reduced energy consumption during drying and pelletizing
▸ Increased throughput for downstream extrusion and molding
▸ Less labor required thanks to automation and stable feeding
Conclusion
Turning washed films into uniform, injection-ready pellets is easier with a Film Squeezing Pelletizing Dryer. Variable-speed pelletizing blades, combined with screw pressing and dehydration, deliver consistent quality while saving energy and labor.
For anyone in plastic recycling looking to produce high-quality granules efficiently, this machine is a reliable solution. Explore our Film squeezing pelletizing dryer and see how it can improve your production line.
Post time: Feb-24-2026