Case | PP Recycling Compound Pelletizing Solution

• Processing: The first stage require single-screw extruder for plasticizing the recycled material, second stage adopt twin-screw extruder for compounding and optimization, enabling the separate production of recycled material and compounding pellets.
• capacity: 500-600 kg/h.
• Additives: Multi-component additives on line dosing  such as calcium carbonate, short and long glass fibers feeding online.

1. Modified PP Recycled Granulation

• Raw Materials: Recycled PP (bumper, battery case crushed material)
• Recipe: PP (recycled material), POE, PP-g-MAH, talc, short glass fiber, K-215, PE wax

2. Glass Fiber Reinforced PP Pelletizing

• Raw Materials: PP (T03), PP (K8003)
• Recipe: PP-g-MAH, silicone masterbatch, K-215, long glass fiber

The finished granules not only have excellent mechanical properties and processing performance, but also meet the strength, toughness, and dimensional stability requirements of injection molded parts such as automotive bumpers and battery cases.

1. Recycling and Plasticization

Recycled PP scrap is plasticized through first stage of extruder → Laser filters, efficiently filter impurities and automatically clean → extrusion

2. Compounding and Enhancement

The melt enters a co-rotating parallel twin-screw extruder, where additives such as calcium carbonate, short and long glass fibers are added through side-feeding system. After uniform plasticization, it passes through spaghetti pelletizing, cooling water tank, dryer, gantry pelletizer, and finally into finished pellets.

3. Post-Processing

• Laser Filter: Online filtration, fully automatic slag removal, large filtration area, and stable impurity removal.
• Energy-saving Design: Permanent magnet servo motor saves over 20% energy, infrared heating heats up quickly and consumes less energy.
• High-efficiency Production: Professional combination of threaded components and high volume ratio design ensure uniform plasticization, increasing production capacity by approximately 30%.
• Automated Feeding: Online dosing and delivery of raw materials and additives ensures stable ratios and reduces manual operation.
• Intelligent Control: Comprehensive process parameters, alarm and prompt functions, and remote monitoring and adjustment via a mobile app.
• Diverse Applications: Suitable for recycling compound pelletizing, as well as direct compounding and pelletizing, a single machine provides multiple uses.