PT. Industri Kemasan Semen Gresik ( IKSG ) adalah perusahaan yang memproduksikemasan semen jenis jahit. Dalam proses produksnya masih ditemui adanya aktivitasyang tidak bernilai tambah (non value adding activity) atau pemborosan (waste).Beberapa pemborosan gtersebut antara lain adalah waiting delay, motion daninspection, serta lead time yang panjang, sehingga dapat mempengaruhi kepuasankonsumen. Oleh karena itu, diperlukan perbaikan dan peningkatan kualitas secara terusmenerus pada proses-proses tersebut sehingga mampu dihasilkan produk yangberkualitas sesuai dengan spesifikasi atau kebutuhan pelanggan.Untuk memecahkan masalah tersebut, digunakan Metode Lean Six sigma yaitu suatumetode yang bertujuan untuk mereduksi non value added activity dan mengurangijumlah defect. Dari hasil penelitian dapat disimpulkan : a) Cacat yang paling dominanadalah cacat jahitan tidak sempurna. b) Hasil perbaikan lean produksi mampumengurangi: Pemborosan (waste) berkurang dari sebesar 669 menit menjadi 513,45menit, Production lead time berkurang dari sebesar 533 menit (9,28 jam) menjadi499 menit ( 8,32 jam) dan Prosentase Non Value Adding Activity berkurang dari91,26% menjadi 88,90% dan c). Kapabilitas proses pada kemasan semen jenis jahitsebesar 4,50.
Human resources have an important role in development so that the potential need to be developed. Fatigue is a normal condition in everyday life. In general, fatigue can be divided into two namely, physical fatigue (physical fatigue) and mental fatigue (mental fatigue). Many factors can cause fatigue in humans, one of which is smoking behavior. Smoking in adolescence, especially working age will disrupt fitness, especially cardiorespiratory endurance. One method that can support this research is the Response Surface Methodology method. The results showed that smoking for nine years with moderate consumption of cigarettes at the age of work did not affect physical or mental fatigue, but there was a tendency to increase a little mental and physical fatigue. Improved predictability can significantly reduce physical endurance.
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