Dry Mining

The use of heavy equipment in auriferous mining in some areas is very limited for its investment and maintenance costs.

Operational Costs
Bulldozer AD7 fiat or D4 Caterpillar or similar for the work of movement of land (over layer).

Equipment quotation: US$ 87,000.00.

Renting of the equipment by the hour of operation 27,57 $ 144,12 day/16 h.

Cost m3 0,75 m3.

Frontal charger 926 – 930 similar.

Auriferous gravel carrying, pendent 12%, maximum.

Efficiency: 480 m3/day

Quotation of equipment US$ 127,000.00

Renting of equipment hour/operated 39,13

Carrying cost m3 1,30

Washing plant: 1,000 m3/day

Equipment: Trommel, Jig, Sluices, etc.

Equipment quotation US$ 450,000,00.

M3 processed gravel cost 0,64

Summary
A + B + C = $ 2,68 m3 processed gravel.