Tend machines that grind particles of solid plastics materials.

What does a Grinder do?

Tends machine that grinds particles of solid plastics materials to specified size: Starts machine and dumps or shovels plastics into hopper. Observes equipment to detect stoppages. May clean equipment with airhose, scrapers, or brushes. May tend machine that grinds scrap material for reuse and be designated Regrinder Operator.