Analisis Statistical Process Control terhadap Mutu Kernel Hasil Kinerja Mesin Ripple Mill pada Stasiun Kernel di PT XY
Kata Kunci:
Ripple Mill, Kernel, Peta Kendali, Pengendalian Kualitas, Fishbone Diagram, Palm Kernel Oil (PKO)Abstrak
Penelitian ini bertujuan untuk menganalisis kinerja Ripple Mill di stasiun Kernel Crushing Plant (KCP) PT XY, mengevaluasi mutu kernel, menerapkan peta kendali sebagai alat pengendalian kualitas, serta merumuskan tindakan korektif. Studi dilakukan selama 26 hari kerja pada November 2023 dengan pendekatan kuantitatif melalui survei dan eksperimen laboratorium. Data dianalisis menggunakan peta kendali X̅ dan R untuk menilai kestabilan proses. Hasil menunjukkan bahwa mutu kernel umumnya berada pada kategori “baik” dan “standar”, meskipun kadar air dan cangkang berlebih masih ditemukan pada hari-hari tertentu. Cacat biji pecah menjadi jenis paling dominan namun masih terkendali, sementara cacat cracked dan shell menunjukkan variasi khusus yang melampaui batas kendali atas (UCL). Proses produksi secara umum belum kapabel sepenuhnya, dengan variasi tinggi yang dipengaruhi oleh faktor manusia, mesin, metode, material, lingkungan, dan pengukuran. Oleh karena itu, perbaikan menyeluruh dan pengendalian mutu berkelanjutan diperlukan untuk meningkatkan stabilitas dan efisiensi proses kernel di masa mendatang
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