| dc.description.abstract | The rapid development of the industrial world today makes competition more
competitive, especially in the manufacturing industry which requires companies to
continue to produce quality products in order to compete with other companies in
the same field. PT XYZ is an agro-industrial company engaged in the tea powder
processing business where the products produced are tea powder which is divided
into grade I, grade II, and grade III. The research was conducted on the tea powder
production process which experienced waste problems in the form of waiting
activities in the production process, unnecessary movement activities carried out
by operators and defects. Based on observations made in the tea powder production
process, there is waste in the form of product defects with an average percentage
of 5.30% where the company wants the product defect tolerance limit to be below
1%. The total time of non-value added waiting activity is 19.62 minutes and nonvalue
added motion activity is 66.14 minutes. The purpose of this study is to identify
and calculate the time of value-added, necessary non-value-added, and non-valueadded
activities, eliminate non-value-added activities and provide suggestions for
improvements to improve the quality of tea powder. The method used to solve the
problem in this research is lean six sigma. Lean Six Sigma is a combination of lean
and six sigma concepts using the DMAIC method (Define, Measure, Analyze,
Improve, and Control). The proposed improvements use the FMEA method with
Risk Priority Number (RPN) assessment. The proposed improvements are made on
the identification of the causal factors of methods, people, and machines. From the
calculation results obtained an increase in sigma level from 3.60 to 4.41. In
addition, it also eliminates non-value added activities as many as 14 activities so
that there is a reduction in manufacturing lead time by 85.76 minutes. | en_US |
