Tend grinding mills that crush powder or explosives ingredients.
What does a Wheel Mill Operator do?
Tends grinding mill that crushes powder or explosives ingredients, such as sulfur, saltpeter, and charcoal, used in manufacturing gunpowder: Charges mill with prescribed amounts of ingredients. Starts mill wheel revolving for specified time or until materials are crushed and mixed and rakes or dumps contents into containers for storage or further processing. When tending mill that crushes finished powder to grains of specified size to attain uniform ballistic properties, is designated Graining Operator. May tend vibrating screens to separate particles of varying sizes.