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All Journal Ensiklopedia of Journal Seminar Nasional Lahan Suboptimal Jurnal Ners Journal of Comprehensive Science Blantika : Multidisciplinary Journal Jurnal Inovasi Global Contemporary Journal of Applied Sciences (CJAS) Jurnal Teknologi Mineral dan Batubara J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Yovanda, Ridho
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Journal : Blantika : Multidisciplinary Journal

 1 
Evaluasi Produktivitas Alat Gali Muat Excavator Caterpillar 345 Dan Alat Angkut Dump Truck Axors Pada Aktivitas Coal Getting Pada Pt Dizamatra Powerindo Site Lahat Sumatera Selatan Saputra, M Wijaya; Arisanti, Reni; Yovanda, Ridho
Blantika: Multidisciplinary Journal Vol. 3 No. 9 (2025): Special Issue
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/blantika.v3i9.414

Abstract

Kegiatan coal getting di PT. Dizamatra Powerindo merupakan salah satu tahapan penting dalam proses penambangan batubara, di mana penggunaan alat berat seperti excavator dan dump truck menjadi penentu utama produktivitas. Penelitian ini bertujuan untuk mengevaluasi produktivitas alat gali muat Excavator Caterpillar 345 dan alat angkut Dump Truck Axors pada aktivitas coal getting di site Lahat, Sumatera Selatan. Metode yang digunakan dalam penelitian ini meliputi observasi langsung di lapangan, pengambilan data primer seperti waktu edar (cycle time), efisiensi kerja, dan jumlah alat, serta data sekunder berupa spesifikasi alat dan data curah hujan. Hasil perhitungan menunjukkan bahwa produktivitas alat gali muat sebesar 234,74 ton/jam, sedikit di bawah target perusahaan sebesar 240 ton/jam, sedangkan produktivitas alat angkut sebesar 35,58 ton/jam, juga belum mencapai target 40 ton/jam. Evaluasi keserasian kerja alat (match factor) menunjukkan nilai 0,73 yang menandakan terdapat waktu tunggu pada alat gali muat. Faktor-faktor yang mempengaruhi kinerja alat meliputi kondisi front penambangan, kondisi jalan angkut, dan pola pemuatan. Sebagai solusi, disarankan penambahan unit dump truck untuk mencapai match factor mendekati 1 agar sinkronisasi kerja lebih optimal.
Manajemen Quality Control Batubara Seam A, B, dan C pada Pit Pe dan Rom 5pt Priamanaya Energi Lahat Sumatera Selatan Zahroh, Rizkinia Afifatuz; Yovanda, Ridho; Susilo, Aris
Blantika: Multidisciplinary Journal Vol. 3 No. 10 (2025): Special Issue
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/blantika.v3i10.427

Abstract

This study aims to evaluate the management of coal quality control at seams A, B, and C in the Pit and ROM area of PT Priamanaya Energi Lahat, South Sumatra. Coal quality control is crucial to keep product specifications in accordance with company standards, especially in terms of ash, sulfur, and calorific value. The research method used is quantitative descriptive, with data collection techniques through direct observation, informal interviews, documentation, and laboratory data analysis. The quality control activities observed included channel sampling, installation of barrier stakes, visual inspection of coal characteristics, and coal cleaning activities using excavators to clean coal from impurities directly in the pit area. After the coal is transferred to the ROM, quality control is continued through stack separation based on seam quality, where seams A and B are stacked in the ROM of block A, while seam C which has a higher sulfur content is placed in the ROM of block C. This process also includes handpicking, resizing activitiescoal measuring >30 cm, as well as new dumping monitoring to prevent contamination between piles. The results of the analysis showed that seams A and B were of better quality than seam C, with lower ash and sulfur content and higher caloric values. Quality control management from Pit to ROM has proven to be effective in maintaining coal quality, especially when each stage of supervision is carried out based on the characteristics of each seam. Pile separation, corrective actions in the field, and visual supervision are key in preventing mixing and degrading coal quality.
Co-Authors Abda Abda Afifatuz Zahroh, Rizkinia Anaperta, Yoszi Andini, Ubai Dila Anna Yulianita Ari Sugiarto Aris Susilo Arisah, Feni Arisanti, Reni Hanumsi, Osi Kestri Hasibuan, Ahmad Rizki Hisni Rahmi Julisti, Rena Nursani, Rodiyah restu juniah, restu Saputra, M Wijaya Suhardiman Gumanti, Suhardiman Syelly Eka Permatasari Yuniar Pratiwi Zahroh, Rizkinia Afifatuz