Penerapan Metode Statistical Quality Control dalam Pengendalian Cacat Tutup Botol Scottish di PT Gambino Artisan Prima

Abstract

PT Gambino Artisan Prima menghadapi masalah cacat tutup botol kopi varian Scottish. Penelitian ini memakai metode Statistical Quality Control (SQC) dengan alat check sheet, diagram Pareto, peta kendali P, fishbone, dan why-why analysis untuk mengidentifikasi dan memperbaiki masalah kualitas. Hasilnya menemukan tiga jenis cacat: loss ulir, sobek, dan bocor. Cacat loss ulir menjadi masalah utama dengan jumlah 88 kejadian dari total 144 kejadian cacat sebesar 60,3% yang disebabkan oleh faktor mesin, material, metode, dan manusia. Rekomendasi perbaikan meliputi tindakan pencegahan pemeliharaan mesin, standardisasi parameter mesin capping, pengetatan kontrol material, penyusunan SOP, serta pelatihan operator. Implementasi tindakan ini terbukti efektif karena menurunkan persentase produk cacat secara signifikan dari 3,05% menjadi 0,24%.

PT Gambino Artisan Prima faced issues regarding defective bottle caps for its Scottish coffee variant. This study employed the Statistical Quality Control (SQC) method—utilizing tools such as check sheets, Pareto diagrams, P-control charts, cause-and-effect diagrams, and "why-why" analysisto identify and rectify quality issues. Three types of defects were identified: thread loss, tearing, and leakage. Thread loss was the primary issue, accounting for 88 of the 144 total defect incidents (60.3%) and stemming from machine, material, method, and human factors. Improvement recommendations included preventive maintenance, standardization of capping machine parameters, stricter material controls, the development of Standard Operating Procedures (SOPs), and operator training. Implementing these measures proved highly effective, significantly reducing the defective product rate from 3.05% to 0.24%.