ASP Single Screw Shredding And Pelletizing Extrusion Line For In-Plant Recycling

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    ASP Single Screw Shredding and Pelletizing Extrusion Line for In-plant Recycling

    The ASPTM series shredding and pelletizing system combines function of shredding, crushing, enforcing feeding, plasticization and pelletizing in one program.
    Applied in the plastics recycling and pelletizing process, ASPTM system is a integrated and cost-saving solution for every kind of plastic scrap, such as film, raffia, trim, purge, hollow part, bottle and foaming material in plant recycling.

     
     


    Material recycling application videos

    Advantages

    actual photos of a plastic recycling crushing and pelleting machine

    01.   High-quality Screw

    High-quality bi-metal wear-resistant screw, ensuring that the final output not decrease within two years.

    02.   Simple Structure

    Combines shredding, forced feeding, plasticizing and pelletizing functions in one system for easy operation.

    03.   Wide Range of Applications

    Suitable for recycling a variety of plastics in factories, such as film scraps, small hollow bottles, in-plant lumps and foaming materials.

    04.   Stable Output

    The shredding and pelletizing of in plant plastic recycling can realize stable  output.

    05.   Intelligent Control System

    Fully automatic intelligent PLC system, reducing labor costs, and making stable operation.

    06.   High Product Quality

    Uniform pellets which meet the needs of downstream enterprises.

    Specifications


    Target Recycled Material
    HDPE, LDPE, PP, BOPP, CPP, PA, PC, PS, PU, ABS Final ProductGranules
    System Composition
    Belt Conveyor,shredder, Single Screw Extruder, Filter, Pelletizer, Water Cooling Device, Dehydration Section,Conveyor blower, Product Silo. Output Range
    150-1200kg/h
    Feeding Device
    Belt Conveyor (Standard), Roll Hauling off device (Optional) Diameter of Screw
    80-110mm
    Material of Screw
    Bi-metal L/D of Screw
    36/1
    Heater of Barrel
    Ceramic heater or infrared heater
    Cooling of Barrel
    Air blower
    Vacuum Deashing Exhaust
    Double port vacuum degassing system (Standard)
    Pelletizing Type
    Water-ring pelletizing/ water cooling strands pelletizing/ Under-water pelletizing
    Voltage Standard
    Customization
    Optioanl Device
    Metal detector, Roll hualing off device, Masterbatch and additives feeder
    Warranty
    13 months from the date of bill of lading
    Technical servicesProject design, factory construction, installation and recommendations, commissioning
     

     

    Composition and Operation Process

    Overview

    ASP single-screw plastic recycling crushing and pelleting machine

    View Detail


    Feeding

    the conveyor belt transports plastic waste

    Feeding

    As standard design, plastic scraps such as film, filament, raffias conveyed into the shredder through belt conveyor; to handle rolls’ scraps, roll hauling off device is an optional feeding method. Motor drives of conveyor belt and hauling device  controlled by inverter.

    Shredding/Enforcing Feeding

    Shredding/Enforcing Feeding

    Adopt European design shredder, the specialized shredding rotors combined with single screw extruders, to pre-reduce, crush and enforce feeding various plastics scraps to shredder chamber; the plastic scraps can be in form of film, bottles, raffia, woven bag/non-woven, fabrics, purges, lumps; it is an universal system for many  kinds of plastic scrap.

    Single Screw Extruder

    single screw barrel

    Barrel

    High wear resistance bimetallic barrel allows the single screw extruder to greatly extend the life of key components when facing rigid plastic, ensuring stable and continuous production.

    bimetallic wear-resistant single screw

    Single Screw Extruder

    Our unique design single screw extruder gently plasticizes and homogenizes the materials. Our bi-metal screw&barrel has great anti-corrosion resistant, wear resistant and long life time.

    Intelligent Control 

    remote monitoring and information transmission

     Remote Monitoring and Data Transmission

    Realize real time monitoring parameters and rapid troubleshooting.

    intelligent control

     Intelligent Control System

    One-button Start
    According to built-in logical sequence and processing requirement, ASP pelletizing system could be started by one button "START",to avoid mistakes that may be caused by manual
    operation.
    One-button Stop
    Stop the running machine could be realized by one button "STOP" owing to the modular design in PLC to protect the system from damage caused by manual operation.
    Emergency Stop
    Press the button "Emergency stop" when
    emergency happens

    Filtration System

    none-stop piston type filter

     None-Stop Piston Type Filter

    • A regular piston double working station screen changer can be installed on head of extruder to present significant filtration performance.
    •  Longer screen life time, lower screen changing frequency.
    •  Easy to use and non-stop type: easy and quick screen changing and no need to stop the running machine.
    • Very low operation cost.


    plate type filter

     Plate Type Filter

    The Plate type filter is equipped with two filter plates. There is at least one filter mesh working when the screen is changing. Round-shape ceramic heater for consistent and stable heating.


    self clean filtration of plastic pelletizer

    Self Cleaning Filter

    This model combines our self-developed self-cleaning filter.The new SCF self-cleaning filtration system makes non-stopping recycling extrusion, especially suitable to highly contaminated materials re-pelletizing. SCF filtration system can handle and remove up to 5% contaminates in the melt flowing, can separate the contaminates such as paper, wood, aluminum, unmelted plastic and rubbers etc.


    Pelletizing System

    plastic extrusion die head

    Die Head

    Its core feature is that the die head surface does not contact with the cooling water directly. This design ensures that the die head temperature is uniform, and even if the output is low, the discharge can be maintained normally. Specially suitable for handling materials with low melt index.

     

    water ring pelletizer

    Water Ring Pelletizing System

    • Self-adjusting pelletizing head for the best granulate quality and long uptime thanks to consistently correct blades pressure.
    •  RPM of rotatory blades is automatic based on melt extruding pressure.
    • Easy and fast pelletizer blades changeover, without adjustment work to save time.
    strand pelletizing

    Strands Pelletizing System

    The strands pelletizing system is a classic plastic pelletizing technology that is widely used in the fields of plastic recycling and compounding. It adopts a step-by-step process of "first extruding into strands, then cooling, and finally cutting into pellets". Simple structure and easy maintenance.

     

    under-water pelletizing system

    Under-Water Pelletizing System

    High automatic pelletizing system. It is suitable for materials with high MFI and high production capacity requirements. This system includes pelletizer, valve, conveying pipeline, dewatering, vibrating screen and silo.

     

    Vibration Sieve

    dewatering vibrating screen

    Vibration Sieve

    • Advanced dewatering vibration sieve combing with horizontal-type centrifugal dewatering machine to present high performance dried pellets and lower energy consumption.
    •  Assemble sieves: The sieves are installed and fixed by screws instead of welding, so you can change the sieves easily in the future.
    plastic pellets

    Plastic Pellets

    Final output:  plastic pellets can be re-used for producing high quality plastic products once again.

     

    Packing System

    plastic pellet storage silo

    Packing System

    • Final qualified granules will be blown to silo and storaged in the big bag.
    •  Optional Capacity online monitoring & Quantitative weighting system.

    FAQ

    A: The ASP series integrates a heavy-duty shredder directly with the extruder, allowing you to feed large rolls of film, bundled woven bags, and high-strength plastic lumps without any pre-crushing. This 3-in-1 design (Shredding-Extruding-Pelletizing) significantly reduces labor costs, saves floor space, and eliminates the dust and noise issues typically associated with separate crushing processes.

    A: Yes, the ASP series is the premier solution for in-plant recycling. It is specifically designed for film manufacturers and bag producers to re-process their own production waste (start-up scraps, edge trims, and rejected rolls). The low-speed, high-torque shredding technology minimizes material degradation, ensuring that the recycled pellets retain nearly the same physical properties as virgin resin for immediate re-use in production.

    A: Absolutely. The powerful integrated shredder is versatile enough to process diverse waste streams, from high-volume soft PE/PP films to rigid materials like pipes, purged lumps, and thick sheets. The system automatically adjusts its feeding speed based on the motor load, ensuring a stable and continuous extrusion process regardless of the material's bulk density or shape.

    A: Safety is a core feature of the ASP line. It is equipped with an intelligent hydraulic pusher and an automatic reverse function for the shredder rotor to prevent jams. Additionally, the system includes a high-sensitivity metal detection interface and an overload protection protocol. These features ensure the long-term durability of the screw and barrel, significantly reducing maintenance costs and operational risks.

    A: The ASP series is designed with energy-saving drive technology, which optimizes power consumption by synchronizing the shredding and extrusion stages. Since the material is heated through friction during the shredding process, it requires less heating energy in the extruder stage. This integrated approach can save up to 15-20% in electricity costs compared to using a separate crusher and a conventional pelletizing line.


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