A Study of Standard Time in the Product Packaging Process: A Case Study of ABC Company

Abstract

              This study aimed to examine the workflow and operational characteristics of the packaging process at ABC Co., Ltd., a manufacturer of medical devices and electronic components. It also sought to measure and establish the standard time for the packaging process, as this new product had no existing time data available for production planning. The research employed time and motion study approach, dividing the packaging process into five main stages and sixteen sub-activities. A total of 30 observation cycles were conducted, determined through statistical calculation using the Maytag table, based on preliminary data from 10 cycles
 to identify an appropriate sample size for standard time analysis. The Westinghouse System of Rating was applied to evaluate operator performance and adjust the observed time according to worker capability, with an additional 10% allowance added to reflect real working conditions.

              The results revealed that the total standard time for the packaging process was 497.67 seconds (approximately 8 minutes and 29 seconds) per unit, which is considerably higher than target standard time of 55 seconds. Consequently, the process needed to be redesigned into 11 workstations to ensure efficient manpower allocation and timely production. The “inspection of boxes and products” stage was identified as the main bottleneck. Establishing standard times enables systematic manpower planning, reduces the risk
of production delays, and enhances line balancing efficiency across the packaging process.