This question is way to generic to be answered here. I am afraid you will have to ask a more specific question related to a specific area/mine/deposit type or similar. read more
To find the suitable machines, one need first to determine the qualities and quantities of ore deposits. Hardness of ores, available resources around the mining site, and many other factors, influence the choice of the machines. read more
These gold mining machines are definitely not for the hobby prospector. The Trommel is designed for high volume sorting of raw material. The refined, or classified, product is then run through a sluice box to further refine it. read more