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Journal : Jurnal Teknik ITS

Environmental Impact Evaluation Using Green Value Stream Mapping (Green-VSM) and Life Cycle Assessment (LCA) Aufar Fikri Dimyati; Moses Laksono Singgih
Jurnal Teknik ITS Vol 8, No 2 (2019)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.988 KB) | DOI: 10.12962/j23373539.v8i2.49344

Abstract

PT. AI is an industry that moves their business in the agro-industrial sector. One of their products is insecticide that has cypermethrin (hazardous material) and xylene (flammable material) as the main materials in a formulation process. Moreover, PT. AI also use aluminum and corrugated box as the packaging materials. By utilizing Green-VSM (process visualization) and LCA (environmental impact assessment), this study is intended to assess each production process of the insecticide and the environmental impact that is caused by process, material and waste that occurs within each process. Furthermore, the identification of improvement opportunities for reducing environmental impact will be done. Based on this study, the existing condition of the process causes environmental impact towards human health of 0.01 DALY (714 points), ecosystem quality of 361.45 PDF*m2y (20.528 Points) and resources of 5.9 MJ (0.8 points). By analyzing the existing condition there are four improvement opportunities that are identified. The first opportunity is redesigning the current corrugated box design, which reduces the environmental impact for 8.675 points from material use reduction. The second opportunity is having a sorting activity towards the cap of the bottle which reduce environmental impact for 3.548 points. The third opportunity is changing into a new procedure towards the box sealing process which reduces environmental impact for 0.0008 points. The fourth improvement is substituting material towards bottle material (from supplier) packaging into the duplex board which reduces environmental impact for 2.915 points. Those improvements opportunities in total are expected to reduce the environmental impact for 15.138 points.
Perbaikan Proses Produksi Jerrycan 5 Liter di PT. KEMASAN Menggunakan Pendekatan Lean Manufacturing Aisyah Pontiana; Moses Laksono Singgih
Jurnal Teknik ITS Vol 9, No 2 (2020)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373539.v9i2.56067

Abstract

PT. KEMASAN adalah perusahaan manufaktur yang bergerak dalam produksi packaging plastik. Produk jerrycan 5 liter merupakan produk yang paling banyak dipesan oleh customer VVIP dan diproduksi secara kontinu. Pada kondisi aktual terdapat permasalahan yang dapat menurunkan kepuasan pelanggan dilihat dari complaint berupa ketidaksesuaian produk, produk defect melebihi standar 3%, persentase breakdown melebihi standar 2.5%, dan adanya keterlambatan pengiriman produk jerrycan 5 liter sebanyak sembilan kali pada tahun 2019. Permasalahan-permasalahan tersebut dapat menurunkan kepercayaan konsumen dan bahkan menyebabkan kerugian finansial. Adanya defect dan breakdown merupakan indikasi pemborosan pada proses produksi yang dapat dikurangi melalui pendekatan lean manufacturing. Penelitian dimulai dari identifikasi proses produksi dan waste dengan tools value stream mapping, process activity mapping, observasi, dan diskusi dengan perusahaan. Kemudian dilakukan penentuan waste kritis dengan metode Borda dan didapatkan hasil waste kritis yaitu waste defect dan waste unnecessary motion. Selanjutnya dilakukan analisis akar penyebab waste kritis dengan metode 5 why’s dan dilakukan penentuan kategori risiko dengan FMEA untuk kemudian dibuat rekomendasi perbaikan. Diusulkan 3 alternatif perbaikan dan kombinasinya untuk kemudian dilipih alternatif terbaik menggunakan pendekatan value analysis. Dengan penerapan alternatif terpilih dihasilkan future state value stream mapping dengan penurunan lead time dari 3058 detik menjadi 2898 detik dan nilai value added bertambah sebanyak 1.2%.