Mini Oreo Cup Production Plan with Aggregate Method to Minimize Production Costs

Manufacturing companya PT.Sinar Jatimulia Gemilang
produces many types of plastic packaging, one of which is
mini oreo cups.The production system in this company is
based on job shop, changing product demand and limited
product capacity make it difficult for the company to make
a productin plan. The purpose of this research is to make a
mini cup production plan to meet future demand with the
aim of minimize production costs. At the initial stage a field
study was conducted to obtain to required data. The data
obtained through interviews with production employees
from the company. Then do the literature study through
books and articles from related journal as the theoretical
basis used in this research. Production planning research
using exponential smoothing forecasting method with α=0.6
and standard error of 617814.3 was selected with the criteria
of the smallest mean square error and aggregate
planning.The result of analysis I strategy of inventory level
inventory cost is IDR. 441,654,900. In analysis II the
strategy for variation in the number workers costs is IDR.
747,373,500. The cost for analysis III subcontracting
strategy is IDR. 79,065,843,000. From the research that
production cost before the calculation is IDR.
52,002,000,000 and the number of workers is 4. After the
result of the research on optimization the number of workers
that will be used by 2 .
Keywords:
Forecasting
Aggregate planning
Cost
Production