Published on April 5, 2026 | By Dr. Sarah Johnson, Plastic Pelletizing Technology Expert with 12+ years of experience in extruder design and recycled pellet production. Download our technical whitepaper: “Optimizing Plastic Pelletizing Efficiency for Recycled Materials” for third-party test data and performance benchmarks.
Plastic Pelletizing Machines
Plastic Pelletizing Machines are the backbone of plastic recycling, converting regrind from rigid plastic recycling systems into high-quality pellets that can be reused in packaging, automotive parts, and consumer goods. The PPM-400 is an energy-saving single-screw pelletizer engineered to process PP, PE, and HDPE regrind, delivering consistent pellet quality while reducing energy consumption—making it ideal for recyclers looking to maximize profitability and sustainability.
Why It Matters: Energy costs are a major expense for pelletizing operations, accounting for 30-40% of total operational costs. The PPM-400 addresses this with an energy-efficient single-screw extruder that reduces power consumption by 20% compared to conventional models, while maintaining a high output of 300-400 kg/h. It also solves the problem of inconsistent pellet size and density, which often plagues recycled pellet production—thanks to a precision die head and water-ring pelletizing system that ensures uniform pellets (2-4 mm) with a density variation of less than 5%.
Key features of the PPM-400 include a bimetallic screw and barrel for extended wear resistance (critical for processing abrasive regrind), a vacuum degassing system to remove moisture and volatile contaminants, and a PLC control system for automated operation. It is CE certified, meets ISO 9001:2008 standards, and complies with PPWR regulations, ensuring the pellets meet the recycled content requirements for plastic packaging. The machine is compatible with regrind from all major rigid plastic recycling systems, including the RPR series, creating a seamless closed-loop recycling process.
For recyclers asking, “How to choose a plastic granulator for HDPE bottles?”, the PPM-400 is an excellent choice. It is specifically calibrated to process HDPE regrind, with a temperature control system that prevents thermal degradation of the material—ensuring high-quality pellets suitable for food-grade packaging (when paired with proper cleaning systems).
Plastic Pelletizing Machines
Technical Parameters (PPM-400)
| Parameter | Specification |
| Motor Power | 37 kW |
| Rotor Diameter | 80 mm (Screw Diameter) |
| Number of Blades | 6 (Pelletizing Cutter) |
| Screen Mesh Size | 20-40 mesh (Filtration System) |
| Output Capacity | 300-400 kg/h |
FAQ
Q: Can the PPM-400 process regrind with high moisture content? A: Yes, the PPM-400 features a vacuum degassing system that removes moisture (up to 2%) from regrind, preventing bubbles and defects in the final pellets.
Q: What is the pellet size range of the PPM-400? A: The PPM-400 produces uniform pellets of 2-4 mm, with an adjustable die head to customize pellet size for specific applications (e.g., injection molding, blow molding).
Q: How long is the lifespan of the PPM-400’s screw and barrel? A: The bimetallic screw and barrel have a lifespan of 8,000+ operating hours—twice as long as conventional steel components—reducing maintenance and replacement costs.
