RANCANG BANGUN MESIN PENCACAH LIMBAH PLASTIK TEBAL 1,5 mm BERPENGGERAK MOTOR BENSIN 9 HP

GIBRAN NAUFAL ZAIDANIKARNA, , (2026) RANCANG BANGUN MESIN PENCACAH LIMBAH PLASTIK TEBAL 1,5 mm BERPENGGERAK MOTOR BENSIN 9 HP. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Latar belakang penelitian didasarkan pada meningkatnya permasalahan limbah plastik serta keterbatasan akses listrik di beberapa wilayah, sehingga diperlukan mesin pencacah yang portabel dan tidak bergantung pada sumber listrikPenelitian ini bertujuan untuk merancang dan membangun mesin pencacah limbah plastik berbasis motor bensin yang efisien, mandiri energi, dan aplikatif untuk skala industri kecil dan komunitas daur ulang. Mesin dirancang untuk mencacah plastik dengan ketebalan hingga 1,5 mm. Metode penelitian menggunakan pendekatan Research and Development (R&D) dengan modifikasi model Define, Design, Develop, Disseminate (4D) sampai tahap Develop. Tahapan meliputi analisis kebutuhan, perhitungan teknis, perancangan menggunakan Computer Aided Design (CAD), simulasi kekuatan struktur berbasis Finite Element Method (FEM), proses fabrikasi, dan pengujian kinerja mesin. Sistem transmisi menggunakan sabuk dan pulley, pisau pencacah berbahan baja karbon, serta Flywheel sebagai penstabil putaran. Hasil simulasi FEM menunjukkan bahwa tegangan, regangan, dan faktor keamanan pada pisau serta sistem transmisi berada dalam batas aman. Proses fabrikasi berhasil menghasilkan mesin yang dapat dirakit dan dioperasikan sesuai spesifikasi desain. Uji fungsional menunjukkan bahwa mesin mampu bekerja secara mekanis dengan stabil dan efektif dalam proses pencacahan plastik. Penelitian ini menyimpulkan bahwa mesin pencacah limbah plastik berbasis motor bensin yang dirancang layak digunakan sebagai teknologi tepat guna untuk mendukung kegiatan daur ulang di daerah dengan keterbatasan infrastruktur listrik. Pengembangan lanjutan disarankan untuk meningkatkan kapasitas produksi, efisiensi bahan bakar, serta aspek keselamatan kerja. ***** This study aims to design and develop a gasoline engine–driven plastic waste shredding machine that is efficient, energy-independent, and applicable for small-scale industries and community-based recycling units. The research is motivated by the increasing plastic waste problem and limited access to electricity in certain areas, which requires a portable and non-electric-dependent shredding solution. The machine is designed to shred plastics with a maximum thickness of 1.5 mm. The research method adopts a Research and Development (R&D) approach with a modified Define, Design, Develop, Disseminate (4D) model up to the Develop stage. The stages include needs analysis, technical calculations, CAD-based mechanical design, Finite Element Method (FEM) structural simulations, fabrication, and machine performance testing. The transmission system uses a belt–pulley mechanism, carbon steel cutting blades, and a Flywheel for rotational stability. The FEM simulation results indicate that the stress, strain, and Safety Factor values of the blades and transmission system are within safe limits. The fabrication process successfully produced a machine that can be assembled and operated according to the design specifications. Functional testing shows that the machine operates stably and effectively in shredding plastic materials. This study concludes that the designed gasoline-powered plastic waste shredding machine is feasible as an appropriate technology to support recycling activities in areas with limited electrical infrastructure. Further development is recommended to improve production capacity, fuel efficiency, and occupational safety aspects.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Dr. Sugeng Priyanto, M.Sc; 2). Dr. Ferry Budhi Susetyo, M.T., M.Si.
Subjects:	Teknologi dan Ilmu Terapan > Teknik Mesin, Mekanika Teknik Teknologi dan Ilmu Terapan > Manufaktur
Divisions:	FT > D IV Teknologi Rekayasa Manufaktur
Depositing User:	Gibran Naufal Zaidanikarna .
Date Deposited:	03 Mar 2026 02:18
Last Modified:	03 Mar 2026 02:18
URI:	http://repository.unj.ac.id/id/eprint/65876

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