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Home / Products / Plastic Washing Line / Plastic Film Recycling Washing Line / PE Film Pelletizing Machine

PE Film Pelletizing Machine

The PE film pelletizing machine we offer is designed for recycling common soft plastics such as HDPE, LDPE, LLDPE, PP, and PS.

It is ideal for processing both clean production scraps and post-washed materials.

Whether you're recycling clean film waste or handling contaminated materials like woven bags, agricultural film, or dirty post-consumer waste, we provide the right single-stage or two-stage pelletizing solutions to match your needs.

Our systems ensure that the final pellets meet high-quality standards, regardless of input complexity.

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  • Process of Plastic Film Pelletizing Machine

    1. Feeding & Pre-treatment

    The system integrates a cutter-compactor unit. It cuts large film scraps, preheats lightweight material using friction, and compacts it into a dense form. This ensures a consistent material flow into the extruder screw.

    2. Melting & Plasticizing

    The screw conveys plastic forward, using heat and pressure to melt the film. In a two-stage extruder, this process is split between a main extruder (melting) and a sub-extruder (extrusion), ensuring better temperature control.

    3. Vacuum Degassing

    To prevent bubbles in pellets, the machine uses vacuum degassing vents. These extract moisture and ink volatiles from the melt, which is critical for processing washed agricultural film or printed packaging.

    4. Melt Filtration

    The melt passes through a hydraulic screen changer. Metal meshes capture remaining contaminants. Our continuous screen changers allow filter replacement without stopping the machine, maximizing efficiency.

    5. Water-Ring Cutting

    We use hot die-face cutting (water-ring pelletizer). Rotating blades cut the plastic immediately as it exits the die. Water instantly cools the pellets and carries them away, preventing sticking.

    6. Dewatering & Screening

    Pellets enter a centrifugal dewaterer to remove surface water, followed by a vibratory screen to classify sizes. The final dry, uniform pellets are sent to the silo for packaging.

    Types of Plastic Film Pelletizing Machines

    1. Cutting Methods

    A. Water-Ring (Hot Die-Face) - Recommended

    The standard for PE/PP film.
    Pros: Easy start-up, automatic operation, compact footprint. No need to manually pull strands.

    B. Strand Pelletizing

    Traditional method (spaghetti-like strands). Good for engineering plastics but requires more labor for film recycling to prevent strand breakage.

    C. Underwater Pelletizing

    For extremely high throughputs. Generally too expensive and complex for standard recycling lines.

    2. Extruder Configuration

    Single-Stage Extruder

    One screw barrel. Best for clean, dry industrial waste (factory scraps). Lower cost, but limited degassing.

    Double-Stage Extruder (Recommended)

    Two extruders in series. The first melts and degasses; the second filters and extrudes. Essential for washed post-consumer film with moisture or ink.

    FAQ & Expert Tips

    Straight Answers to the Questions You Might Be Hesitant to Ask

    ▼ 1. What types of plastic film can be recycled?
    Our machines handle thermoplastic films including LDPE (agricultural film), LLDPE (stretch wrap), HDPE (bags), and PP (woven sacks/BOPP). It accepts both clean industrial scrap and washed post-consumer waste.
    ▼ 2. Single-Stage vs. Two-Stage: Which one do I need?
    If your material is clean and dry, Single-Stage is cost-effective.
    If your material has moisture, ink, or contamination (like washed ag-film), Two-Stage is necessary for better degassing and filtration to ensure bubble-free pellets.
    ▼ 3. What is the advantage of the Cutter-Compactor?
    It eliminates the need for a separate crusher. It cuts, dries, and densifies light film using friction heat, feeding hot material directly into the extruder. This increases output capacity by 20-30% compared to cold feeding.
    ▼ 4. How to ensure high quality pellets?
    Quality depends on Filtration and Degassing. Ensure your screen changer mesh is fine enough to catch impurities, and check that the vacuum pumps are working to remove moisture. Input material cleanliness is also key.
    ▼ 5. What is the estimated cost of a line?
    Small lines (100-300kg/h) range from $20k-$50k. Mid-size industrial lines (500kg/h+) with double-stage compaction range from $60k-$100k+. Contact us for a precise quote based on your capacity needs.
    ▼ 6. Maintenance Tips for Optimal Performance
    Regularly sharpen the cutter blades in the compactor. Keep the vacuum venting ports clean. Check gearbox oil levels and lubricate bearings periodically.
Plastic Film Recycling Washing Line

PP/PE Film Washing & Recycling Line (300-2000kg/h) – Turn Dirty Film into High-Profit Pellets

Processing soft plastics is challenging—they float, tangle, and trap water. Boxin Machinery provides engineered solutions specifically for Post-Consumer LDPE Films, Agricultural Mulch, and PP Woven Bags. Our integrated system (Crushing + Washing + Squeezing Drying) guarantees final moisture < 3-5%, ensuring smooth feeding for your pelletizing extruder.

Why Trust Boxin with Your Film Recycling Project?

Soft plastic recycling is harder than rigid bottles. Here is how we solve the "Water" and "Wrapping" headaches:

▼ Click to View: 4 Key Advantages (Drying Tech & Anti-Tangle)
1. Solving the "Wet Flake" Problem (Moisture < 3%) Traditional centrifugal dryers cannot dry soft films effectively. We equip our lines with heavy-duty Screw Squeezing Dryers that physically squeeze water out of the film, reducing moisture content to 3-5%. This directly reduces energy consumption in your downstream pelletizing extruder.
2. Anti-Tangling Crusher Design Agricultural films often contain rocks and wrap around crusher shafts. Our specialized Film Crushers feature an anti-winding blade arrangement and wear-resistant steel, ensuring continuous operation even with tough agricultural mulch or jumbo bags.
3. Customized Process for YOUR Material Agricultural Film? We add high-efficiency Sand Removers and Trommels. Clean Factory Scrap? We design a compact, direct-to-pelletizing loop. We don't just sell machines; we design the P&ID based on your material's contamination level.
4. Factory Direct Pricing & Support Manufactured in-house in Zhangjiagang. From the heavy steel structure to the electrical control panel, we control the quality. You get factory-direct pricing and immediate spare parts availability without middleman markups.

 

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About Us
Zhangjiagang Boxin Machinery Co., Ltd.
Zhangjiagang Boxin Machinery Co., Ltd is China PE Film Pelletizing Machine Manufacturers and Custom PE Film Pelletizing Machine Factory, an innovative company that remains committed to plastic recycling and extrusion technology and specializes in providing plastic recycling washing and granulation equipment.
We are a professional supplier of customized solutions to plastic recycling, on the basis of our development teams and a wealthy content of industrial experience.
Main Products of Boxin: PET bottle recycling washing line, PE film /PP woven bag recycling washing line, HDPE /PP hard plastic recycling washing line, plastic pelletizing line and plastic shredder, plastic crusher machine.
VISION
Being an industry-leading provider for plastic recycling equipment and solution by using high quality as base and taking technical innovation as breakthrough and customer demand as orientation.
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