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All Journal Journal of Engineering Environtmental Energy and Science Science and Education Journal SAINTEK
Lifia Citra Ramadhanti
Universitas Tangerang Raya
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences

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Integrasi Digital Lean Automation dengan IoT untuk Efisiensi Proses Assembly di Industri Otomotif Lifia Citra Ramadhanti; Ida Bagus Sumantri; Ade Koswara
Journal of Engineering Environmental Energy and Science Vol 1 No 1 (2022): January 2022
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (897.803 KB) | DOI: 10.31599/joes.v1i1.971

Abstract

Dalam meningkatkan laba perusahaan, diperlukan beberapa pendekatan dalam proses bisnisnya. Seiring dengan perkembangan zaman, konsumen memiliki permintaan yang tinggi dalam hal suatu produk. Salah satunya adalah produk mobil lego yang dapat dijadikan sebagai prototipe pembelajaran di industri manufaktur. Semakin tinggi permintaan, maka perusahaan dituntut untuk dapat menerapkan sistem lean dalam memproduksi permintaan tersebut. Dengan pendekatan digital lean masih belum optimal karena perkembangan teknologi saat ini. Oleh karena itu, adanya pendekatan digital lean didukung oleh pendekatan teknologi (IoT) yang memaksimalkan jalur otomatisasi (full automatic line). Berdasarkan layout, dengan menerapkan semi otomatisasi pada titik awal bagi perusahaan yang baru mulai menerapkan aplikasi lean digital akan sangat membantu perusahaan dalam mengurangi biaya dari segi waktu yang terbuang karena banyak operator yang menunggu dan juga produk jadi dapat diselesaikan. tepat waktu sehingga perusahaan akan memperoleh keuntungan yang tinggi dari pelanggan. Dengan penerapan digital lean seperti semi-otomatisasi line dapat membantu dalam menghilangkan cacat dalam proses sementara, menghilangkan pemborosan dalam proses dengan meningkatkan nilai bagi pengguna akhir.
Pembangunan Berkelanjutan Di Era Revolusi Industri 5.0 Dari Sudut Pandang Teknik Lifia Citra Ramadhanti; Rakay Edhiargo Toyosito
Prosiding Sains dan Teknologi Vol. 1 No. 1 (2022): Seminar Nasional Sains dan Teknologi (SAINTEK) ke 1 - Juli 2022
Publisher : DPPM Universitas Pelita Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Engineering is one of the construction activities that affect the natural environments as fundamental as the explorations of materials, design, construction, post-construction and other processes and result in the consumption of energy in large quantities and will continue to produce waste, and this problem will lead to changes significant in the ecological environment. Therefore, as one of the pillars in the construction industry, not only need develop engineering to meet the needs of engineering of economic and social development solely but also pay attention to environmental protection, resource conservation and promote sustainable development strategy. The reason mentioned above and to better understand the concept of sustainable development, this research seeks to study sustainable development strategy from an engineering perspective and discuses sustainable development from the pre eliminate design stage, technical design and construction implementation. Keywords: Engineering, Industry 5.0, Sustainable Development
Implementasi Metode Six Sigma Dengan Pendekatan Taguchi Untuk Menurunkan Tingkat Cacat Pada Proses Produksi Air Conditioner (AC) Indoor di PT Changhong Electric Indonesia Muhammad Syahrul Amrullah; Mochamad Eko Nugroho; Rakay Edhiargo Toyosito; Sita Kurniaty Ratoko; Lifia Citra Ramadhanti
Science and Education Journal (SICEDU) Vol 5 No 2 (2026): Science and Education Journal 2026
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/sicedu.v5i2.981

Abstract

Product quality is one of the primary factors determining the competitiveness ofmanufacturing companies. A high defect rate increases production costs, reduces productivity,and decreases customer satisfaction. PT Changhong Electric Indonesia continues to experiencea defect rate in the Air Conditioner (AC) Indoor production process that exceeds thecompany's quality standard of 2%. This study aims to identify the major causes of productdefects, evaluate process capability using the Six Sigma methodology, and determine theoptimal process parameter combination through the Taguchi approach. This researchemployed a quantitative approach by integrating the Define, Measure, Analyze, Improve, andControl (DMAIC) cycle with the Taguchi method. Research data were collected from production reports covering the period from June 2025 to January 2026, direct observations,interviews, and company documentation. The analytical techniques included Critical toQuality (CTQ), Defects Per Million Opportunities (DPMO), sigma level analysis, Paretodiagram, Fishbone diagram, Analysis of Variance (ANOVA), Orthogonal Array, and Signalto-Noise Ratio (SNR). The results revealed seven major defect categories, with foreignmaterial defects accounting for 26.0%, unfastened components for 20.7%, and missing spareparts for 14.6% of total defects. The average DPMO was 22,758, with a process capability of3.50 sigma, indicating that the manufacturing process remains at the average industrialperformance level. The Taguchi optimization successfully identified the optimal processparameter combination, leading to reduced process variation and improved product quality.The integration of Six Sigma and Taguchi proved effective in reducing product defects andenhancing process stability in
Penurunan Reject Kemasan Bottom Powder Kosmetik Dengan Pendekatan Plan, Do, Check, Action Dan Failure Mode And Effects Analysis (FMEA) Di Industri Manufaktur Kosmetik Ovi Dian Lestari; Rakay Edhiargo Toyosito; Lifia Citra Ramadhanti
Science and Education Journal (SICEDU) Vol 5 No 2 (2026): Science and Education Journal 2026
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/sicedu.v5i2.1004

Abstract

Product quality is one of the important factors in maintaining customer satisfaction and increasing the competitiveness of cosmetic manufacturing companies. PT PTI, as a cosmetic manufacturing company, still faces problems related to the high number of Rejects in the powder packaging process, especially bottom sticker tearing defects, inject hitting printing defects, and cut bottom sticker defects. The high Reject rate causes decreased production effectiveness, increased material waste, higher production costs, and reduced packaging quality. This study aims to identify the factors causing Rejects in the powder packaging process and to determine improvement proposals to reduce the Reject rate in Powder Division Zone A at PT PTI. The methods used in this study are the Plan, Do, Check, Action (PDCA) approach and Failure Mode and Effect Analysis (FMEA). Data processing was carried out using histograms, Pareto diagrams, fishbone diagrams, and Risk Priority Number (RPN) analysis to determine improvement priorities based on the highest level of failure risk. The research data were obtained from production and Reject data during the W36 to W41 period in 2025 at Line PNP 03 of Powder Division Zone A. The results showed that the dominant Reject type was bottom sticker tearing, with a total Reject of 5,200 pcs or 45.87% of the total Rejects. Based on the FMEA analysis, the highest RPN value obtained was 567 for the bottom sticker tearing defect, making it the main priority for corrective actions. The main causes of the Rejects originated from machine factors, work methods, materials, and operators. The proposed improvements include periodic machine setting inspections, improving operator accuracy, routine machine maintenance, establishing machine setting standards, and increasing supervision in the packaging process. The implementation of the improvements showed a decrease in the number of Rejects in the powder packaging process. By implementing the PDCA and FMEA methods, the company is expected to improve product quality, reduce the number of Rejects, and increase the effectiveness and efficiency of the production process in Powder Division Zone A at PT PTI in a sustainable and optimal manner.
Co-Authors Ade Koswara Ida Bagus Sumantri Mochamad Eko Nugroho Muhammad Syahrul Amrullah Ovi Dian Lestari Rakay Edhiargo Toyosito Sita Kurniaty Ratoko