Improving energy efficiency and productivity is essential for enhancing competitiveness in manufacturing industries. This study aimed to evaluate the effect of implementing a Mitsubishi HG-SR102 servo motor on electrical-to-mechanical energy conversion, energy consumption, Specific Energy Consumption (SEC), torque and rotational speed characteristics, and the productivity of the Super Absorbent Polymer (SAP) Sheet unit in a baby diaper production machine. A comparative method was employed by analyzing machine performance before and after servo motor implementation using energy consumption, SEC, torque, rotational speed, mechanical power, and productivity parameters. The results showed that total energy consumption decreased from 5,587 kWh to 3,705 kWh, while SEC decreased from 0.314 to 0.307 kWh/pc (2.41%). Machine productivity increased from 494 to 503 pcs/h (1.79%), and energy productivity increased from 3.18 to 3.26 pcs/kWh (2.47%). At a line speed of 600 PPM, the servo motor produced a torque of 0.480 Nm, a rotational speed of 516.2 rpm, and a mechanical power output of 25.95 W, indicating stable operation under high-speed conditions. The implementation of the servo motor improved both energy efficiency and machine productivity.
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