Analisis Sistem Antrian Pada Industri Pengolahan Roti (Studi Kasus Di PT Nippon Indosari Corpindo)

Abstract

Productivity is one of important thing to be concerned in industrial development efforts because the productivity value becomes an indicator of company efficiency and effectiveness. Achievement of high productivity is determined from the continuity of production process or production balancing. Production balancing is determined by service velocity and arrival velocity or the existence of bottleneck due to queuing. The queue occured when the arrival of raw materials exceed than production capacity and at the time when arrival time faster than service time so that the following materials which arrived could not be serviced directly because of busyness services. In the bread processing industry PT Nippon Indosari Corpindo, production processed with semi-automatic system which combined between machine and operator so that there are a variety of service rate with probabilistic patterns. Therefore, production queuing of company needs to be analyzed to anticipate any additional costs due to material damage during production process. In the bread processing industry, it will cause over-fermentation and then will reduce the quality of product because of waiting time materials. If that condition continues, the material loss in company will be larger. Therefore, need a simulation to be developed with queuing theory. The research purposes was identifying queuing models that occurs in a production line, analyzing queuing system performance, identifying causing factors of queue and developing queuing models scenario. This research is limited to queuing system analysis and development models in sweet bread line PT Nippon Indosari Corpindo from raw material which arrived into first production station until the end of production station. This sweet bread line had 16 service stations that consisted of machine or room service and operator service. Sixteen stations was mixing sponge stations, first fermentation, mixing dough, floor time, dividing, rounding, intermediate proofing, filling, make up, panning, second fermentation, baking, depanning, cooling, packaging and crating. There was 6 stations using operators that was filling station (1 operator), make-up (4 operators), panning (2 operators at ripped bread items and 1 operator at filled bread items), baking (1 operator), depanning (1 operator) and crating (2 operators).