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1) Fine crusher
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Secondary or fine crusher used in the milling process at Gilman.
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2) Shaft weights, Gilman mill
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Electrically activated shaft weights in the mill section at Gilman Mine.
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3) Rod and Ball Mill
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The rod and ball mill. The rod mill is on the left and ball mill on the right. These were used to grind the zinc concentrates for additional chemical processing. Prior to this, the material had chemical agents added to allow the zinc mineral surface to adhere to flotation bubbles. These were some of the steps for making the zinc ready to ship in railroad cars.
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