Productivity improvement of washing tables by setting standard time: a case study of stainless manufactories

Abstract

The purposes of this research are to study and improve the productivity process of washing tables by setting standard time, a case study of stainless manufactories. Nowadays, the manufacturers don’t know the production capacity. That leads to the problems of manufacturers’ work control and late product delivery to the customers. The study is proposed to improve work procedures by designing operation process chart (OPC), the setting of operation stations, Operation process chart time (OPC TIME) and finding the standard time in product manufacture. As for the operation process and the standard time setting, the research revealed that the standard time of welding station in assembly process for the frame table, sink tap nozzle, high neck sink flick and welding station of all assembly parts were the first, the second, the third, and the fourth respectively. The researchers’ suggestions were to add 2 welding machines and 2 workers in assembly process so as to work more efficiently so that it can decrease the total processing time from 855.24 minutes/set to 645.91 minutes/set or 24.47 % reduction.