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All Journal MACHINERY: Jurnal Teknologi Terapan
Frayudha, Ilham Frayudha
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Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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DESIGN OF AN INJECTION MOULDING MACHINE FOR MAKING PLASTIC BOWLS USING LOW DENSITY POLYETHLENE PLASTIC GRANULES: DESIGN OF AN INJECTION MOULDING MACHINE FOR MAKING PLASTIC BOWLS USING LOW DENSITY POLYETHLENE PLASTIC GRANULES Frayudha, Ilham Frayudha; Soegeng Witjahjo; Mulyadi
MACHINERY Jurnal Teknologi Terapan Vol. 6 No. 3 (2025): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/machinery.v6i3.11277

Abstract

This study discusses the design and development of a simple injection moulding machine for producing plastic bowls natural rubber using Low Density Polyethylene (LDPE) as raw material. The machine employs a pneumatic system as its main actuator and includes a heating system and a two-plate mold. The primary objectives are to design a functional machine and to analyze the effects of varying injection temperatures (180°C, 190°C, 200°C) and holding times (40 and 50 seconds) on product quality. Results show that an injection temperature of 200°C with a holding time of 50 seconds yields the most optimal product in terms of dimensional accuracy and form stability. The developed machine proves to be effective, cost-efficient, and has strong potential as a learning tool in academic environments. Additionally, the use of recycled LDPE supports plastic waste reduction efforts, contributing to environmental sustainability.
Co-Authors MULYADI Soegeng Witjahjo