How does auger diameter affect the actual output of a meat grinder?

Auger diameter sets the feed chamber volume and pushing capacity, yet throughput does not rise in direct proportion: pitch, compression ratio, plate hole resistance, meat temperature and fat-to-lean ratio all intervene. Run a continuous trial with your actual recipe and temperature, logging net output, current draw and temperature rise hour by hour to fix the specification. For acceptance, benchmark net yield against test cycle time, and keep the trial sample plus plate hole size as the reference for future temperature and capacity drift.