Pengelolaan Supply Produk Waferstick dengan Mempertimbangkan Kapasitas Produksi dan Persediann Barang Jadi di PT. Tiga Pilar Sejahtera Food, Tbk

摘要

In general, planning supply use the information from combining varying capacity and inventory to plant the aggregate rates of production by time period for groups of product. This research objective is PT. Tiga Pilar Sejahtera's (TPS) that produces wafersticks. In the company sometimes occured the waferstick product can be not fulfilled. This is happened because waferstick inventory unstable. This causes problem that PT. Tiga Pilar Sejahtera (TPS) was less capable to fullfil the market's demands. to solve this PT. TPS should be managing the working hours, workforces, production capacity and finished good inventory, they are called aggregate planning. This research are determine safety stocks, planning supply and material inventory planning. Managing supply of waferstick product is started by forecast the demand. The forecast result is used to estimate safety stock of waferstick. Then the forecasting result and safety stock became of input Integer linier programming model to determine aggregate planning. The aggregare planning is used to find optimal lot size of waferstick raw material. Then lot sizing become input Planned Order Receipt in the Material Planning Requirement (MPR). Forecast method used to forecast the demand is decomposition, this method is the best method to find estimation demand because it have more less MAD than the other. The determination of the safety stock is actually more accurate with the 90% by Romy & Yuli waferstick safety inventory is 1106 cartons and 2364 cartons for Pio. From aggregate planning there is back order in 13th is 11 cartons. The planning cost for Romy & Yuli waferstick Rp 625.670.902,33 and cost for Pio waferstick Rp 1.462.296.180,00. Waferstick material planning by optimal lot size between 695 kilograms up to 8487 kilograms by waferstick material cost is Rp. 6.315.520,00.