hammer mill

American  

noun

Mining.

1. a mill for breaking up ore or crushing coal.

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Etymology

Origin of hammer mill

First recorded in 1600–10

Example Sentences

Front-end loaders at the plant feed biomass, like wood chips from nearby sawmills and rice hulls from rice production processing, into a series of machines, which direct the tiny biomass bits through a machine called a hammer mill, to reduce them down to a uniform particle size; through a rotary dryer about the length of a tractor trailer; and then into a briquettor to crush them into dense bricks.

From Salon

“Ours was crushed by Shagbark Mill in Athens, although we have our own hammer mill on order to crush our own.”

From Washington Times

It comes to the distillery in 2,000-pound bags, to be fed into the ominous-sounding hammer mill and ground in preparation for its alchemical wedding to the corn.

From The Wall Street Journal

And outside the grainery, there’s a 75-year-old Montgomery Ward antique hammer mill. 

From Los Angeles Times

The corn was poor quality, the cornmeal that was available during that time was processed in a hammer mill, which heats it, and as heat enters the process you’re essentially cooking out some of the volatile organic compounds.

From Washington Post