PRIANTO, APRILIA DWI (2025) ANALISIS KETELITIAN GEOMETRIS DAN FUNGSIONAL MESIN PEREMUK LIMBAH BOTOL PLASTIK. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
The geometric accuracy of a machine refers to the precision of its geometry when components are assembled into a mechanical system. Geometric accuracy includes one-dimensional aspects such as straightness and roundness, as well as twodimensional aspects such as flatness, cylindricity, uniaxiality, positional accuracy, symmetry, and rotational tolerance. In the plastic bottle waste crusher machine, the critical factors influencing its performance are dimensional and geometric accuracy. Inaccurate dimensions and critical geometric deviations may result in suboptimal machine performance. The geometric accuracy of the plastic bottle crusher machine therefore directly affects its functionality. This study aims to identify the critical components of the plastic bottle crusher machine, followed by testing their geometric accuracy and machine functionality. The research began with identifying components that significantly affect machine performance, then performing geometric accuracy tests on these critical parts. If major deviations were found, corrective measures were taken until the components met ISO 2768-2 standards. Based on the results, critical components such as the three upper shaft frames, motor mounts, gearbox, handle, and bearing system were found to significantly influence machine precision and performance. Geometric testing showed that the overall structure complied with ISO 2768-2 standards with a tolerance of 0.1 mm, perpendicularity of 90° at a column height of 1595.00 mm, maximum upper shaft variation of 0.01 mm (range% = 0.00147%), and symmetric positioning of the bearing housing (X = 260 mm, Y = 145 mm) as well as the motor mount within tolerance. Functional testing demonstrated that the 1.5 Hp motor, 1:10 gearbox ratio, and manual handle operated smoothly without disturbances, confirming that the hybrid drive system (manual and automatic) is feasible for use in the plastic bottle waste crusher machine.. Keywords: Crushing machine, Plastic bottle waste, Critical components, Geometric accuracy, Functional testing. Ketelitian geometrik mesin adalah ukuran akurasi dari geometri mesin, ketika komponen mesin dirakit menjadi sistem mekanis. Ketelitian geometrik termasuk akurasi satu dimensi seperti kelurusan dan kebulatan. Ketelitian geometri dua dimensi termasuk kerataan, silindris, uniaksialitas, posisi ketelitian dan simetris, serta toleransi rotasi. Komponen mesin peremuk limbah botol plastik yang kritis dalam mempengaruhi kinerja mesin yaitu dimensi dan geometri. Dimensi dan ketepatan geometris mesin yang kritikal adalah tidak sesuai yang mengarah pada kinerja dimana mesin tidak berjalan optimal. Ketelitian geometrik mesin peremuk limbah botol plastik mempengaruhi fungsional dari mesin tersebut. Penelitian ini bertujuan mengidentifikasi komponen mesin peremuk limbah botol plastik yang bersifat kritis kemudian menguji ketelitian geometris serta menguji fungsional mesin. Penelitian diawali dengan identifikasi komponen mesin yang kritis yang berpengaruh terhadap kinerja mesin, kemudian dilakukan pengujian ketelitian geometris komponen yang kritis tersebut. Bila dalam pengujian ketelitian geometris dijumpai yang menyimpang jauh maka dilakukan perbaikan untuk kemudian diuji lagi sampai diperoleh ketelitian geometris tiap komponen mesin yang kritis tersebut yang memenuhi standar ISO 2768-2. Berdasarkan hasil pengujian, komponen kritis pada mesin peremuk limbah botol plastik seperti rangka 3 upper shaft, dudukan motor, gearbox, handle, dan sistem bearing terbukti memiliki pengaruh signifikan terhadap presisi dan kinerja mesin. Hasil uji ketelitian geometris menunjukkan seluruh struktur memenuhi standar ISO 2768-2 dengan toleransi 0,1 mm, ketegaklurusan 90° pada tiang dengan tinggi 1595,00mm, variasi pengukuran upper shaft 0,01 mm (range% = 0,00147%), serta posisi simetris rumah bearing ( X = 260 mm dan Y = 145 mm dan dudukan motor yang sesuai toleransi. Uji fungsional memperlihatkan motor 1,5 Hp, gearbox rasio 1:10, dan handle manual bekerja stabil tanpa gangguan, sehingga sistem penggerak hybrid (manual maupun otomatis) dinyatakan layak digunakan. Kata Kunci : Mesin peremuk, Limbah botol plastik, Komponen kritis, Ketelitian geometrik, Uji fungsional.
| Item Type: | Thesis (S1) |
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| Call Number CD: | FT/MSN. 25 102 |
| NIM/NIDN Creators: | 41321010052 |
| Uncontrolled Keywords: | Mesin peremuk, Limbah botol plastik, Komponen kritis, Ketelitian geometrik, Uji fungsional |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.8 Machine Engineering, Machinery/Teknik Mesin 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 628 Sanitary Engineering and Environmental Protection Engineering/Rekayasa Sanitasi dan Teknik Perlindungan Lingkungan, Teknik Lingkungan |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | khalimah |
| Date Deposited: | 17 Sep 2025 06:54 |
| Last Modified: | 17 Sep 2025 06:54 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/98005 |
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