USIOSEFE EMWANTA VICTOR, UWANDI CHIBUIKEM GOODNESS, UCHE STEPHEN

This project report presents the design, implementation, and performance evaluation of an innovative plastic pelletizing machine engineered to address the escalating challenge of plastic waste management. The core advancement of this machine lies in its hybrid preheating system, which synergistically combines a high-efficiency gas burner for rapid initial temperature elevation and a precision electric heater for sustained, uniform heat distribution. This dual approach significantly enhances the machine's ability to process a wide spectrum of waste plastics (PPT), optimizing melt homogeneity and minimizing thermal degradation. A detailed analysis of the machine's key components, including the automated feeding hopper, optimized extrusion barrel and screw design, multi-stage filtration system, precision pelletizing unit, and efficient cooling mechanism, is provided. Emphasis is placed on the dual preheating system's ability to achieve significant energy savings by leveraging the rapid heating capabilities of the gas burner and the precise control of the electric heater.The operational procedures, including material preparation, preheating, extrusion, pelletizing, and cooling, are outlined, along with critical safety considerations and maintenance protocols. The project concludes with a comprehensive assessment of the machine's potential applications in plastic recycling facilities and manufacturing industries, highlighting its contribution to sustainable plastic recycling practices through the production of high-quality, reusable pellets and its role in fostering a circular economy.