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UPT Publikasi Ilmiah, Universitas Islam Bandung. Jl. Tamansari No. 20, Bandung 40116, Indonesia, Tlp +62 22 420 3368, +62 22 426 3895 ext. 6891
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Bandung Conference Series: Mining Engineering
Published by Universitas Islam Bandung
ISSN : -     EISSN : 28282140     DOI : https://doi.org/10.29313/bcsme.v2i2
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Engineering Materials Science & Nanotechnology
Bandung Conference Series: Mining Engineering (BCSME) menerbitkan artikel penelitian akademik tentang kajian teoritis dan terapan serta berfokus pada Teknik Pertambangan dengan ruang lingkup Analisis sensitivitas Net Present Value (NPV), Anggaran Biaya Crushing Plant, API 5L Grade B, Belt Conveyor, BESR II, Crude Oil, Crushing plant, Dimensi Paritan, Discounted Cash Flow (DCF), Dump Truck, Economic SR, Efisiensi Kerja Cassiterite, Gas, Korosi, Hopper, Internal Rate of Return (IRR), Kapasitas Sump Jalan Angkut, Lifetime Biaya Produksi, Loosematerials, Payback Periode (PBP), Pemompaan, Peringkat Batubara, Pipa Baja Karbon, Crude Oil, Pipa Baja, Pipa Transportasi, Pit Design BWE, Productin Rate Index Crushing Plant, Produktivitas Debit Air, Rencana Reklamasi, Roller, Sisa Umur Pakai Pipa Baja Karbon, Sisa Umur Pakai Pipa Reflektan Vitrinit, Sisa Umur Pakai, Sistem Dewatering, Target Ban, KPH, TUR, Variable Crushing Plan. Prosiding ini diterbitkan oleh UPT Publikasi Unisba. Artikel yang dikirimkan ke prosiding ini akan diproses secara online dan menggunakan double blind review minimal oleh dua orang mitra bebestari.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
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Search results for , issue "115 - 124" : 1 Documents clear
Analisis Produktivitas untuk Meningkatkan Produksi Batu Pasir di CV.Bumi Pasir Makmur Ferdi Eka Putra; Yuliadi; Elfida Moralista
Bandung Conference Series: Mining Engineering 115 - 124
Publisher : UNISBA Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/bcsme.v6i2.24512

Abstract

Abstract. CV Bumi Pasir Makmur is a sandstone mining company that operates using the surface mining method in Leles District, Garut Regency, West Java Province, Indonesia. In mining operations, the productivity of loading and hauling equipment plays an important role in achieving the company's production target of 500,000 tons per year. However, queues of dump trucks frequently occur in the crusher area, delaying the material dumping process and preventing the production target from being achieved. As a result, the actual annual production reached only 472,320 tons. This condition increases the hauling equipment waiting time, extends the cycle time, and reduces the efficiency of material hauling operations. Therefore, this study aims to determine the productivity of loading and hauling equipment and to analyze the effect of waiting time on the efficiency of sandstone mining operations at CV Bumi Pasir Makmur. This research employed a quantitative descriptive method through direct field observations. The data consisted of primary and secondary data. The primary data included cycle time, dump truck trips, haul road geometry, rock fragment size, rock density test results, and production targets. The secondary data included the location map, mechanical equipment specifications, and rainfall data. The collected data were analyzed to calculate the productivity of loading and hauling equipment, determine equipment working efficiency, and identify the factors affecting the performance of the mechanical equipment. The results showed that the productivity of the loading equipment was 82.35 tons/hour with a working efficiency of 92.22%, while the productivity of the hauling equipment was 82.22 tons/hour with a working efficiency of 52.59%. The analysis also indicated that the dump truck waiting time at the crusher area reached 256 minutes per day. The high waiting time was primarily caused by the relatively small crusher gap, resulting in dump truck queues during the material dumping process. This condition increased the hauling equipment cycle time and reduced hauling productivity. Based on the study results, the hauling equipment became the production bottleneck because its productivity was lower than that of the loading equipment. Therefore, optimization efforts are required to reduce waiting time and improve hauling equipment productivity in order to support the achievement of the company's production target. Abstrak. CV Bumi Pasir Makmur merupakan perusahaan yang bergerak di bidang penambangan batu pasir dengan metode tambang terbuka (surface mining) yang berlokasi di Kecamatan Leles, Kabupaten Garut, Provinsi Jawa Barat. Dalam kegiatan penambangan, produktivitas alat gali muat dan alat angkut memegang peranan penting dalam pencapaian target produksi perusahaan sebesar 500.000 ton/tahun. Namun, diperkirakan sering terjadi antrian dump truck pada area crusher yang memperlambat proses penumpahan material sehingga target produksi belum tercapai. Produksi aktual yang diperoleh hanya sebesar 472.320 ton/tahun. Kondisi tersebut mengakibatkan meningkatnya waktu tunggu (waiting time) alat angkut, bertambahnya cycle time, serta menurunnya efisiensi kegiatan pengangkutan material. Oleh karena itu, penelitian ini bertujuan untuk mengetahui produktivitas alat gali muat dan alat angkut serta mengkaji pengaruh waktu tunggu terhadap efisiensi kegiatan penambangan batu pasir di CV Bumi Pasir Makmur. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif melalui pengamatan langsung di lapangan. Data yang digunakan terdiri atas data primer dan data sekunder. Data primer meliputi waktu edar (cycle time), ritase dump truck, geometri jalan angkut, ukuran bongkah, hasil pengujian densitas batuan, serta target produksi. Data sekunder meliputi peta lokasi penelitian, spesifikasi alat mekanis, dan data curah hujan. Data tersebut kemudian diolah untuk menghitung produktivitas alat gali muat, produktivitas alat angkut, efisiensi kerja alat, serta menganalisis faktor-faktor yang memengaruhi kinerja alat mekanis. Hasil penelitian menunjukkan bahwa produktivitas alat gali muat sebesar 82,35 ton/jam dengan efisiensi kerja 92,22%, sedangkan produktivitas alat angkut sebesar 82,224 ton/jam dengan efisiensi kerja 52,59%. Hasil analisis menunjukkan bahwa waktu tunggu (waiting time) dump truck pada area crusher mencapai 256 menit/hari. Tingginya waktu tunggu tersebut diperkirakan disebabkan oleh ukuran gap crusher yang relatif kecil sehingga menimbulkan antrian dump truck pada saat proses penumpahan material. Kondisi tersebut menyebabkan meningkatnya cycle time alat angkut dan menurunkan produktivitas pengangkutan material. Berdasarkan hasil penelitian, alat angkut menjadi faktor pembatas (bottleneck) dalam sistem produksi karena produktivitasnya lebih rendah dibandingkan produktivitas alat gali muat. Oleh karena itu, diperlukan upaya optimalisasi untuk mengurangi waktu tunggu (waiting time) sehingga produktivitas alat angkut dapat ditingkatkan guna mendukung pencapaian target produksi perusahaan.

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