PP/PE Film Shredding & Densifying Line
An integrated washing and densifying solution engineered for recyclers and pelletizing plants. Built for light, contaminated, and wet PE/PP films, it runs shredding, wet granulation, sink-float separation, and squeezing with densifying to raise bulk density and cut residual moisture for steady pelletizer feeding.
- Designed for dirty agricultural film, stretch film, woven bag trims, and post-consumer film scrap.
- Raises bulk density and lowers moisture so feeding becomes more stable and less labor-intensive.
- Available as a standalone densifying upgrade or as part of a complete washing and pre-pelletizing line.
See the Line in Action
Watch how wet, low-density film is converted into denser, lower-moisture output ready for downstream extrusion.
Key Data Highlights
- Low Final Moisture
Mechanical squeezing plus heat exchange drives down residual moisture for direct pelletizing.
- Significant Densification
Bulk density rises substantially, cutting storage and freight costs while stabilizing feeding.
- Flexible Capacities
Multiple configurations with full customization to match your throughput goals.
How It Works: Four-Step Densifying Process
- Shredding
Wear-resistant shredders open film bales and reduce volume for stable feeding.
- Wet Granulation
High-speed knives with process water cut and wash in one step to remove dirt and oils.
- Sink-Float Separation
Water tanks separate light film from heavy contaminants to raise output purity.
- Squeezing & Densifying
Simultaneous dewatering and heat exchange increase bulk density and reduce final moisture.
Process Flow Overview
The integrated line combines shredding, wet granulation, density separation, and squeezing with densifying in a compact layout tuned for film recycling.
Core Benefits
- High-Efficiency Densification
Reduces fluffiness and raises bulk density for steadier, more uniform feeding.
- Low Final Moisture
Mechanical squeezing with heat exchange minimizes secondary drying and shortens the process.
- Energy Efficient
Optimized process design and motor selection deliver lower kWh per ton.
- Modular Configuration
Integrates with existing washing lines and combines shredding, granulation, separation, and densifying modules.
- Built to Last
Wear-resistant contact surfaces handle high-contamination films with reduced downtime.
- Smart Controls
One-touch start, stop, and interlocks reduce manual intervention and simplify maintenance.
From Pain Points to Performance
Target the chronic bottlenecks in film recycling with a process engineered to stabilize feeding, moisture, and contamination before pelletizing.
Inline shredding, wet granulation, and densifying lift bulk density so films convey smoothly and feed extruders without surging.
Mechanical squeezing and controlled heat exchange deliver pelletizer-ready moisture levels, cutting bubbles and improving surface quality.
Wet granulation plus sink-float separation remove fines and organics early, easing filtration load and lowering consumable spend.
Modular layouts, high-efficiency drives, and centralized controls shrink footprint, reduce kWh per ton, and simplify operator routines.
Applications
- Agri Film / Greenhouse Film
Light films with high dirt content such as mulch and greenhouse films.
- Packaging / Stretch / Shrink Film
Common warehouse and logistics films can be densified and fed directly to pelletizing.
- Woven Bags / FIBC Trims
PP/PE mixes benefit from separation and densifying to improve purity and feeding stability.
- Shopping / Garbage Bags
Thin, wet post-consumer films fit the wash and densify process well.
- Washing Line Upgrades
Use as a standalone densifier to upgrade dewatering and feeding on existing lines.
- Plant Offcuts
Clean production offcuts can be densified directly to boost throughput.
Technical Specifications
| Model | RUM-200 | RUM-500 | RUM-1000 |
|---|---|---|---|
| Operation | 2-3 | 2-3 | 2-3 |
| Installation power | 160-200kW | 200-240kW | 400-450kW |
| Knife material | SKD11 | SKD11 | SKD11 |
| Capacity（kg/h） | 200 | 500 | 1000 |
Note: Parameters can be customized. Final configuration and throughput depend on your material and process goals.
What Sets Us Apart
| Criteria | Our Densifying Line | Conventional Washing + Centrifugal Dewatering |
|---|---|---|
| Final Moisture | Lower residual moisture, ready for pelletizing | Often needs extra drying and delivers variable results |
| Bulk Density | Substantial increase with steadier feeding | Limited improvement and unstable feed behavior |
| Energy and Footprint | Integrated, compact layout | Fragmented machines and a larger footprint |
| Contamination Handling | Wet granulation plus sink-float synergy | Higher load on upstream washing |
| Maintenance | Wear-resistant parts and easier upkeep | More wear points and frequent service |
| Automation | One-touch start and stop with interlocks | Weaker system interlocks |
Frequently Asked Questions
Film is light and fluffy, which makes storage, transport, and pelletizer feeding difficult. Densifying raises bulk density and lowers moisture so material feeds steadily into the extruder.
It is densified irregular chunks, strands, or flakes rather than uniform pellets. The important output parameters are bulk density and moisture for stable extruder feeding.
Yes. Shredding, wet granulation, and sink-float separation work together to remove mud, paper, and other contaminants from post-consumer and agricultural films.
This line is a pre-processing system for washing, dewatering, and densifying. A pelletizer is the downstream machine that melts, filters, and cuts final pellets.
Both. The squeezing and densifying unit can be supplied as a standalone upgrade or as part of a turnkey line with shredding, granulation, separation, and densifying.
Customer Testimonials
Once feeding stabilized, filtration pressure held steady. Moisture control is far easier and pellet quality is more consistent across shifts.
The wash and densify configuration finally lets us handle post-harvest films with mud and sand, and downstream extruders run without clogging.
Turnkey delivery, on-site training, and the recommended screen packs boosted uptime. Integration with legacy equipment was smooth.
Warranty & Installation
- 1-Year Limited Warranty
All our recycling machinery comes with a limited warranty for added peace of mind.
- Expert Installation Support
Our engineers can travel to your facility to guide installation, commissioning, and operator training.
Get a Custom Solution & Quote
Share your material mix, contamination level, and capacity goals. Our engineers will map the optimal shredding, washing, and densifying modules with timelines and budget.
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