Pilih Metode TambangSelect Mining Method
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Open-Pit Mining
Cocok untuk seam dangkal (<80m depth). SR ekonomis 1:6. Lebih umum di Kaltim. Bench height 10m, slope 45-50°.Best for shallow seams (<80m). Economic SR up to 1:6. Common in East Kalimantan. Bench height 10m, slope 45-50°.
RecommendedSeam B depth 40-65m
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Underground Mining
Untuk seam dalam (>150m). Biaya capex 3-5× open-pit. Tidak cocok untuk deposit ini.For deep seams (>150m). Capex 3-5× open-pit. Not suitable for this deposit.
Parameter PitPit Parameters
Panjang Pit (m)Pit length (m)800
Lebar Pit (m)Pit width (m)500
Kedalaman final (m)Final depth (m)75
Bench height (m)10
Slope angle (°)48
Buffer zone (m)Buffer zone (m)50
Foxel Auto-EstimasiFoxel Auto-Estimate
dari JORC + geometryfrom JORC + geometry
Kapasitas Pit (BCM)Pit Capacity (BCM)
28,4 juta BCM
dari 800×500×75 × slope adjustmentfrom 800×500×75 × slope adjustment
Equipment Sizing (untuk target 1,5 Mt/tahun)Equipment Sizing (for 1.5 Mt/year target)
Excavator 100t class3 unit
Dump Truck 60t12 unit
Bulldozer D852 unit
Grader + Drill + Support5 unit
Total Fleet22 unit
✓ Estimasi Foxel: total capex equipment ~USD 18 juta · LOM 13 tahun · ROI 4-5 tahunFoxel estimate: total equipment capex ~USD 18M · LOM 13 years · 4-5 year ROI