Abstract: Human efficiency is a critical determinant of productivity in manufacturing, especially in high-output industries like gear production. This study investigates and compares the human efficiency of two structurally identical plants — Plant 1 and Plant 2 — within the same gear manufacturing company. Both facilities operate 22 hours per day with nine identical production processes, producing 35,000 units per batch. Factors including machine idle time, operator training, shift variations, and maintenance schedules were examined from January to March 2025. Through descriptive statistics, correlation, and regression analyses, we uncover how operational variables influence human efficiency and identify strategic recommendations for improvement.

| DOI: 10.17148/IARJSET.2025.12564