An Application of Value Stream Mapping to Reduce Waste in Livestock Vitamin Raw Material Warehouse

The emergence of waste in the raw material warehouse of livestock vitamins is one of the causes of delay in the product distribution process. The company apply the Lean approach with VSM (Value Stream Mapping) technique, to reduce or eliminate the waste. The VSM method visualizes various data and flows (material and information) related to the process, which facilitate the identification of value-added and non-value-added activities to the product. Current state map and process mapping activity found 3 types of waste that occurred, namely excessive transportation, inappropriate process, and waiting time. The Activity Relationship Chart (ARC) and Activity Relationship Diagram (ARD) methods utilize to reduce those three kinds of wastes. These methods improve based on the degree of relationship between the ongoing activity. This study also uses the Process Flow Map method to eliminate unnecessary activities, distance traveled, and work cycle times. After these improvement steps, the value of work efficiency increased from 81.58% to 82.09%.