Abstract
Abstract. Zones 1 and 3 are one of the mining locations in the PT.BSP area, in the andesite mining process in Zone 1 it uses 6 pieces of conveyance and 1 loading device and in the stripping process for loads in zone 3 uses 4 pieces of conveyance and 1 piece of loading tool. This happens because of lack of discussion The composition of mechanical devices and the amount of waiting time that occurs on the conveyance. The purpose of this study is to count products in zone 1 and zone 3, count equipment in zone 1 and zone 3, get funds and calculate queuing times for production in zone 1 and zone 3, and get a matching factor equal to 1. In this research the theory and field data are combined so that it can be completed. And the results of data processing will be analyzed so that a meeting can be generated later. Based on the results of the study can be concluded. First, productivity of komatsu PC200 in Zone 1 is 249.9 tons / hour and productivity of komatsu DT FM500TI is 357 tons / hour. In Zone 3 komatsu PC 200 productivity is 175 bcm / hour and komatsu DT FM500TI 260 productivity is 160,448 bcm / hour. Second, the composition of the available equipment for Zone 1, namely 1 loading device and 6 conveyances, Zone 2, 1 loading device and 4 conveyances. Third, trying to reduce the queue time to make improvements to the composition is not necessary because of increased damtruk added. Fourth, analyze the calculations at Zone 1 = 0.363 and Zone 3 = 0.6140 MF <1 unit. It means that the working factor of the loading tool is less than 100% and the working factor of the conveyance is more than 100% or the ability of the excavator is less than the working of the conveyance due to the large waiting time of the conveyance.
Keywords: production capacity, matching factors, queuing theory, andesite mining, mining equipment