RANCANG BANGUN SISTEM PENCACAH PLASTIK: ANALISIS KEKUATAN POROS DAN DIAGNOSIS TERMAL MOTOR DIESEL MENGGUNAKAN IoT
DOI:
https://doi.org/10.36257/machinery.v7i2.11798Keywords:
Mesin Pencacah Plastik, von mises stress, Safety Factor, IoTAbstract
Sampah plastik merupakan permasalahan lingkungan yang signifikan di Indonesia, termasuk di kota Cilegon. Di Kota Cilegon, volume sampah mencapai 350 ton per hari dengan dominasi limbah plastik, sehingga diperlukan solusi teknologi tepat guna berupa mesin pencacah plastik. Penelitian ini bertujuan untuk merancang dan menganalisis kinerja Plastic Crusher Machine untuk mendukung proses daur ulang. Metode penelitian mencakup tahap perencanaan, pengonsepan, perancangan, dan manufaktur. Mesin digerakkan oleh motor diesel dengan daya kerja 5 kW dan daya maksimum 5,7 kW pada putaran 2600 rpm. Sistem transmisi menggunakan pulley dengan rasio 1:2 dan poros berbahan baja S45C berdiameter 35 mm. Berdasarkan analisis beban puncak dengan mempertimbangkan faktor kejut, didapatkan torsi sebesar 41,87 Nm dan tegangan Von Mises sebesar 8,61 MPa. Dengan nilai safety factor sebesar 41,23, desain dinyatakan aman dan optimal untuk beban kerja dinamis. Selain itu, sistem dilengkapi monitoring suhu berbasis Blynk IoT menggunakan termokopel tipe K, dengan suhu operasional maksimum tercatat sebesar 197 °C. Hasil pengujian menunjukkan kapasitas produksi mesin sebesar 8 kg/jam, di mana pencacahan 1 kg limbah plastik PET membutuhkan waktu 7 menit 30 detik.
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