PENERAPAN SISTEM TOTAL PRODUCTIVE MAINTENANCE (TPM) UNTUK MENINGKATKAN PERFORMANCE MESIN SANDBLASTING ROLL DI PT BUNGASARI FLOUR MILLS

The sandblasting roll machine is used in the maintenance process of smooth roll s to achieve the required surface roughness (Ra) according to company standards. Suboptimal machine performance may affect the effectiveness of the sandblasting process and the achievement of surface roughness targets. This final project aims to evaluate the performance of the sandblasting roll machine, identify factors affecting its performance
, and propose improvements through the implementation of Total Productive Maintenance (TPM). Data were collected through observation, interviews, and machine operational and downtime records during the Industrial Internship program at PT Bungasari Flour Mills. The data were analyzed using a fishbone diagram to identify the factors affecting machine performance . The results showed that the sandblasting process was carried out using a 40/40 setting with a processing time of 10–15 minutes per cycle and required 2–7 cycles to achieve the target surface roughness (Ra). The factors affecting machine performance were related to machine, material, method, and man aspects. The proposed improvement focuses on the implementation of Autonomous Maintenance, Planned Maintenance, and Education and Training pillars to improve process effectiveness and maintain optimal machine performance .

Keywords: Sandblasting roll, Fishbone Diagram, Total Productive Maintenance.

Mesin sandblasting roll digunakan dalam proses perawatan smooth roll untuk menghasilkan tingkat kekasaran permukaan (Ra) sesuai standar perusahaan. Kinerja mesin yang kurang optimal dapat mempengaruhi efektivitas proses sandblasting dan pencapaian target kekasaran permukaan. Tugas akhir ini bertujuan untuk mengetahui kondisi kinerja mesin sandblasting roll, menganalisis faktor-faktor yang mempengaruhinya, serta memberikan usulan perbaikan melalui penerapan Total Productive Maintenance (TPM). Metode yang digunakan meliputi observasi, wawancara, serta pengumpulan data operasional dan downtime mesin selama kegiatan Praktik Industri di PT Bungasari Flour Mills. Data dianalisis menggunakan fishbone diagram untuk mengidentifikasi faktor penyebab yang mempengaruhi kinerja mesin. Hasil analisis menunjukkan bahwa proses sandblasting dilakukan menggunakan setting 40/40 dengan waktu proses 10–15 menit per siklus dan membutuhkan 2–7 siklus untuk mencapai target Ra. Faktor yang mempengaruhi kinerja mesin berasal dari aspek machine, material, method, dan man. Usulan perbaikan yang direkomendasikan adalah penerapan pilar Autonomous Maintenance, Planned Maintenance, dan Education and Training untuk membantu meningkatkan efektivitas proses sandblasting dan menjaga kondisi mesin tetap optimal.

Kata Kunci: Sandblasting roll, Fishbone Diagram, Total Productive Maintenance.