  Bottlenecks are one of the controversial issues in manufacturing companies.
Managers and designers attempt to manage this trouble to improve efficiency in
different ways. For example, expanding capacity is a prevalent solution to get
rid of bottlenecks. In this paper, a color production line is chosen, which
faces several challenges in its production line. This company attempts to
distinguish and diminish the bottlenecks in the production line. The objective
of this paper is to build a developed model of a production line to improve its
profitability by breaking down its bottlenecks. Besides, the optimum number of
operators with different utilizations is investigated in this paper.
Furthermore, we considered the construction of new quality control in the
station, which is the most time-wasting operation in the production line. The
current study aims to apply computer simulation to examine the production line
bottlenecks. In doing so, arena 14.00 software is used. Then the results are
analyzed, and several managerial implications are presented.
