Efficiency Study of Air Conditioner (AC) Service Part Supply Costs Using the Just in Time (JIT) Method

Abstract

PT Panasonic Manufacturing Indonesia is a company engaged in manufacturing that produces household electronic products, one of which is Air Conditioner (AC). The problem that occurred at PT Panasonic Manufacturing Indonesia was the accumulation of service parts in the raw material inventory warehouse which had an impact on production activities. This research was conducted in the AC Business Unit Warehouse Division of PT Panasonic Manufacturing Indonesia. This study aims to identify the factors that cause accumulation and determine the control system. From the analysis using the Just In Time (JIT) method, it can be concluded that the JIT system is more efficient in calculating the total cost of compressor service part inventory at PT Panasonic Manufacturing Indonesia's AC Business Unit. The cost savings obtained were IDR 12,463,500 from the total initial inventory of service parts of IDR 18,933,000.

Keywords: Cost Efficiency, Just In Time, Part Service, Inventory Control.