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## Calculation of Power for a Hammer Mill

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## Calculation of Power for a Hammer Mill

May 21, 2023 nflg 0 Comments

Hammer mills are machines that grind large, solid materials into smaller pieces. Hammer mills are used in many different types of industry, most notably in agricultural and industrial manufacturing such as the manufacturing of paper and seeds. When operating a hammer mill, it may become important to determine the power the mill exerts on the material contained within, as this may help identify inefficiencies in the equipment . The power of a hammer mill can be calculated in a few short steps.

### Hammer Mill Instructions

1. Find the square root of the mill circuit product size, and find the inverse of the result. As an example, if the mill circuit product size is 16 micrometers, the square root of this is 4, and the inverse of this number is 0.25. Call this result A.

2. Find the square root of the mill circuit feed size, and find the inverse of the result. For example, if the mill circuit feed size is 25, the square root of this is 5, and the inverse of that number is 0.2. Call this result B.

3. Subtract result B from result A. In the example used here, 0.2 subtracted from 0.25 gives 0.05. Call this result C.

4. Multiply result C by the work index of the hammer mill and the number 10. For example, if the work index is 3 metric tons, then multiplying this number by 10 and 0.05 gives 1.5 kilowatt-hours per metric ton. This is the power of the hammer mill.
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