The objective of this study is to achieve higher efficiency in production operation through improving the material handling to minimize wastes represented in delivery delay or work in process (WIP) inventory. It is suggested that material is transferred from the warehouse using a tug train system. Advanced tools are required in collecting data of the station inputs to construct an optimum schedule for the train. A new model for material transportation that applies "shortest processing time" (SPT) sequencing rule is proposed. A simulation model was developed; using programming language designed for Simul8 software, for the sake of validating the proposed transportation model. The number of bins delivered to each working station is limited by the demand of each station and its maximum side line inventory. The simulation model is applied on a case study, washing machine production line of "Electrolux" factory in Egypt. The results of the simulation model are found to be similar to the results obtained from the transportation model that was applied using SPT sequencing rule. This work is applied only on the inputs to the stations.
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