This case is based on a Pulley factory, where located in Thailand. Pulleys, size 2 rong 5 inch, were produced 320 pieces of day. Pulley systems are used in the real world to lift large masses onto tall heights. Pulley is made from a wheel and a rope. This factory has been design the plant layout based on process layout was shown in Fig. 1. The initially pulley production, metals from scrap yard were moved to furnace for melting, along with core making then their materials moved to sand mold and disassembly and surface finishing section respectively. The pulleys are investigated by inspectors at inspection section, following kept at warehouse.