The Direct Feeding PP PS Flake Pelletizing Production Line is a specialized recycling system engineered for converting washed and crushed polypropylene (PP) and polystyrene (PS) rigid flakes into uniform, high-quality plastic pellets.
This high-capacity two-stage recycling pelletizing production line is purpose-built for large-volume processors converting PP and PS rigid plastic flakes into premium recycled pellets. The system integrates a robust single-screw primary extruder with force-feeder for reliable intake of bulky rigid flakes, followed by a secondary refining extruder for advanced melt conditioning. With output capacities ranging from 500 to 1000 kg/h, this line is the ideal choice for medium to large-scale recycling facilities, washing line downstream integration, and compounders seeking cost-effective recycled feedstock. The line's modular design allows flexible configuration of degassing stages, filtration fineness, and pelletizing method to match specific output quality requirements.
Advantages
Two-Stage Extrusion
: Separate melting and homogenization stages deliver stable melt flow and uniform pellet density
Dual-Zone Vacuum Degassing
: Effectively removes residual moisture, trapped air, and volatile compounds from washed flakes, preventing bubbles and voids in final pellets
Hydraulic Screen Changer
: Dual-stage filtration with coarse and fine screens removes paper labels, dirt, and fine contaminants
Water-Ring Pelletizing
: Die-face water-ring cutting produces dense, spherical pellets with excellent free-flowing properties
VFD Controlled Feeding
: Variable frequency drive on screw conveyor ensures steady flake input rate, preventing bridging and starvation
PLC Control System
: Full automation with touch screen interface, temperature PID control, and real-time production monitoring
CE Certified
: Safety interlocked guards, emergency stops, and compliant electrical configuration
Applications
Recycling of washed PP/PS bottle flakes from post-consumer collection
Reprocessing of rigid container/crate scrap into reusable raw material
Recovery of injection molding runners, sprues, and post-industrial rigid scrap
Pelletizing of washed PP/PS pipe and profile regrind
Production of recycled PP/PS pellets for injection molding, extrusion, and blow molding
Feedstock preparation for compounding and masterbatch applications
Technical Highlights
Material Compatibility
: PP, PS, HDPE, ABS rigid flakes (moisture <3%, flake size 8-14mm)
Output Range
: 200-800 kg/h (varies by model and material bulk density)
Screw Design
: High L/D ratio (30-36:1) with optimized barrier screw for rigid flake processing
Filter Screen Area
: Dual-stage hydraulic screen changer with continuous operation
Pellet Size
: 2-4mm diameter, adjustable cutting speed
Power Consumption
: Energy-efficient motor and heating configuration with ceramic band heaters
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