Penilaian Kinerja Alat Pengolahan Andesit di PT Lotus SG Lestari Kecamatan Rumpin, Kabupaten Bogor, Provinsi Jawa Barat

Abstract. PT Lotus SG Lestari is a mining company that produces andesite aggregate and manufactured sand (M-Sand). To meet market demands for specific material sizes, the company operates a crushing plant designed to produce material that meets required specifications. However, in October 2024, production output was found to be below the expected target.This study aims to evaluate the performance of the crushing plant at PT Lotus SG Lestari by analyzing equipment productivity, operational time efficiency, and several factors that affect performance. Data were collected through field observations and production records over the study period. The analyzed variables include equipment cycle time and actual production capacity. The evaluation was conducted using the Production Rate Index (PRI) method.The results show that the crushing plant has a primary crushing productivity of 330.35 tons/hour, a first-stage secondary crushing productivity of 328.58 tons/hour, and a second-stage secondary crushing productivity of 272.32 tons/hour, with an average work efficiency of 78.13%. This performance can still be improved through better material distribution systems, maintenance management, and more effective time utilization. Abstrak. PT Lotus SG Lestari merupakan perusahaan tambang yang memproduksi agregat andesit dan manufactured sand (pasir M-Sand). Untuk memenuhi permintaan pasar terhadap material berukuran tertentu, perusahaan ini mengoperasikan crushing plant guna menghasilkan material sesuai spesifikasi. Namun, pada Oktober 2024, diketahui bahwa produksi tidak mencapai target yang ditetapkan. Penelitian ini bertujuan untuk mengevaluasi kinerja crushing plant di PT Lotus SG Lestari, meliputi produktivitas alat, efisiensi waktu operasional, serta faktor-faktor yang memengaruhi kinerja alat. Data diperoleh melalui observasi lapangan dan pencatatan hasil produksi selama periode penelitian. Variabel yang dianalisis mencakup waktu siklus alat dan kapasitas produksi aktual. Penilaian dilakukan menggunakan metode Production Rate Index (PRI). Hasil penelitian menunjukkan bahwa produktivitas primary crushing sebesar 330,35 ton/jam, secondary crushing tahap pertama 328,58 ton/jam, dan tahap kedua 272,32 ton/jam, dengan rata-rata efisiensi kerja 78,13%. Produktivitas ini masih dapat ditingkatkan melalui perbaikan sistem distribusi material, manajemen pemeliharaan, dan pengelolaan waktu operasional yang lebih optimal.