Abstract
This paper presents a construction of a laboratory size of mini batch AUS production system, an improvement of its measurement and control method, a scheduling problem for minimum production time operation under a maximum current restriction condition like 2 out of 3 operation within double dilution pumps and a warm stirrer using Gunt chart. Moreover, a mathematical model on the system was tried to make a critical path, that is, the solution process of urea solid to be short time in all process.