Abstract
Plastic injection mold is known as the most popular method to create the shaping plastic product. The melting plastic is filled the mold and the end of process is the fast condensation of molten plastic by cooling system. This study focusses on survey the effeciency of mold cooling by changing input conditions that are velocity, temperature of cooling water and material of mold details. By using simulation method with Simcenter STAR - CCM+, the results obtained that the best cooling method is reducing water temperature and using berry cooper for some special mold details at special location.