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Stamp Mill (Hydraulic Ore Crusher)
A stamp mill used water or animal power to drive heavy hammers that repeatedly crushed ore for smelting, originating in medieval European mining, spr…
Timeline
- 1200–1500Central European mining regions (Germany, Bohemia) · Central EuropeHydraulic stamp mills matured in 13th-century European mining, using waterwheels to drive camshafts that lifted heavy hammers to strike ore, mainly for crushing iron, silver, and gold ores, popular in mining regions such as Germany and Bohemia, with mechanical principles from agricultural windmills directly transplanted.
- 1550–1580Potosí · Andean regionSpanish colonists brought European hydraulic stamping technology to the Andes, and combined with abundant local water resources built large numbers of hydraulic stamp mills (Spanish: ingenio) around the silver mountain of Potosí. These machines ground coarsely crushed ore to powder for mercury amalgamation silver extraction, forming an industrial chain from mining to refining.
- 1621–1650Potosí and surrounding river valley mining areas · BoliviaBy the 1620s, over a hundred hydraulic stamp mills operated around Potosí, each capable of running multiple hammers continuously, processing vast quantities of silver ore annually. The stamp mill system together with amalgamation formed the industrial core of American silver production, supporting the Spanish Empire's finances and exporting silver to Europe and Asia, driving early global trade networks.
- 1800Major mining regions worldwide · GlobalAfter the Industrial Revolution, steam power replaced waterpower, and stamp mills gradually evolved into roller ball mills and impact crushers, which remain core crushing equipment in global mining and cement industries today, continuing to use the principle of continuous impact crushing established by hydraulic stamp mills.
Sources
- Potosí: The Silver City That Changed the World — Kris Lane (2019)
- De Re Metallica — Georgius Agricola (1556)