Analisis Pengendalian Kualitas Produk untuk Mengurangi Produk Cacat dengan Metode Statistical Quality Control (SQC) pada PT Cedefindo Manufacturing Indonesia

Sugiarto, Aisyah Ariyanti (2025) Analisis Pengendalian Kualitas Produk untuk Mengurangi Produk Cacat dengan Metode Statistical Quality Control (SQC) pada PT Cedefindo Manufacturing Indonesia. Sarjana (S1) thesis, Universitas Islam 45.

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Abstract

The purpose of this research is to identify the factors causing defective products and to provide improvement suggestions to reduce the number of defective products at PT Cedefindo Manufacturing Indonesia. This study employs a descriptive qualitative approach using the Statistical Quality Control (SQC) method, along with the Seven Tools and 5W1H analysis. Data were collected through observation and interviews, and analyzed using check sheets, process flow diagrams, control charts, histograms, Pareto diagrams, cause-and-effect diagrams, and scatter diagrams. The results show that the two dominant types of product defects are seal defects (72%) and wrapper defects (10%). The causes originate from machine, method, material, and manpower factors. The proposed improvements include enhanced operator training, machine standardization, consistency of raw materials from vendors, and improved work procedures. The implementation of the Statistical Quality Control (SQC) method has proven effective in monitoring and controlling product quality, as well as increasing customer satisfaction through defect reduction.

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