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View machine→PP PE pelletizing line
PP PE Pelletizing Line | Plastic Recycling Granule Production Line
PP PE pelletizing line for recycling plastic into granules. Capacity 100–500 kg/h. Includes crushing, washing, extrusion, and pelletizing system.
The PP PE pelletizing line is a complete plastic recycling solution designed to convert waste polypropylene (PP) and polyethylene (PE) materials into reusable plastic granules, with a production capacity of 100–500 kg/h.
This plastic recycling pelletizing line integrates crushing, washing, dewatering, extrusion, and pelletizing into one continuous system, ensuring stable performance and high-quality output.
It is widely used in recycling plants, plastic factories, and environmental protection industries, making it an ideal choice for businesses looking to produce high-quality recycled plastic granules.
Contents
PP PE Pelletizing Process
The complete plastic pelletizing process includes:
- Crushing → reduce material size
- Washing → remove dirt and impurities
- Dewatering → reduce moisture
- Feeding → stable material input
- Extrusion → melting plastic
- Cooling → forming plastic strands
- Pelletizing → cutting into granules
- Screening → uniform particle size
Process flow:
Crushing → Washing → Dewatering → Feeding → Extrusion → Cooling → Pelletizing → Packing
Main Machines in the PP PE Pelletizing Line
Belt Conveyor
- Material: PVC
- Efficient material transport
Plastic Crusher
- Blade material: 60Si2Mn alloy steel
- Screen size:
- Rigid materials: 24 mm
- Film materials: 90 mm
- Water injection function:
- Cleans impurities
- Protects blades
Friction Washing Machine
- Spiral blade structure
- Continuous washing during conveying
- Removes sand and dirt effectively
Washing Tank
- Water consumption: ~0.5 t/h
- The paddle system moves the material forward
Dewatering System
Vertical Dewatering Machine
- Dehydration rate: ~40%
Horizontal Dewatering Machine
- Dehydration rate: 90–95%
- Essential for rigid plastics
Feeding Device
Types:
- Screw feeder
- Claw feeder (more powerful, widely used)
- Features:
- Automatic reverse to prevent blockage
PP PE Extruder (Granulator)
Core equipment of the plastic pelletizing machine:
- Working temperature: 180–220°C
- Screw material: 40Cr alloy steel
- Barrel: heat-treated steel
- Screw clearance: ~0.4 mm
Heating methods:
- Electromagnetic heating (fast & efficient)
- Ceramic heating
- Heating ring
Die head options:
- Hydraulic double die (non-stop screen change)
- Electric gear die
Screen mesh:
- 60 mesh
- Replace every 1–2 hours
Cooling Tank
- Water temperature below 50°C
- Continuous cooling system
Pellet Cutting Machine
- Rolling cutter system
- Blade material: Alloy Y78
- Particle size: 3–4 mm
- Adjustable speed
Vibrating Screen and Storage
- Ensures uniform granules
- Equipped with a 1-ton storage bin
Features of the PP PE Plastic Granulation Line
High Recycling Efficiency
- Continuous production with stable output.
Wide Material Compatibility
Suitable for:
- PP woven bags
- PE film
- Plastic flakes
Stable Granule Quality
- Uniform size (3–4 mm), smooth surface.
Energy-Efficient Heating
- Electromagnetic heating saves energy and improves performance.
Intelligent Control System
- PLC control
- Overload protection
- Automatic reverse feeding
Durable Design
- High-quality materials ensure long service life.
Raw Materials and Final Products
Raw Materials
- PP woven bags
- PE film
- Plastic flakes
Final Products
- PP/PE plastic granules
These granules can be reused in:
- Plastic product manufacturing
- Packaging materials
- Injection molding
Film vs Rigid Material Pelletizing
| Aspect | Film Material | Rigid Material |
|---|---|---|
| Crusher screen | 90 mm | 24 mm |
| Feeding system | Forced feeder required | Magnetic separation needed |
| Dewatering | Optional | Required |
| Pelletizing | Can process with moisture | Must be dry |
| Processing stability | Easier to entangle | More stable |
Mixing film and rigid materials is not recommended.
FAQs
What materials can this line process?
PP woven bags, PE films, and plastic flakes.
What is the capacity?
100–500 kg/h depending on configuration.
What is the pellet size?
3–4 mm, adjustable.
Is the system automatic?
Yes, fully automatic operation is available.
