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All Journal Jurnal Teknoin JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Journal Industrial Servicess JMPM (Jurnal Material dan Proses Manufaktur) PERFORMA : Media Ilmiah Teknik Industri Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri Jurnal Inotera Jurnal Serambi Engineering Jurnal INTECH Teknik Industri Universitas Serang Raya Jurnal Ilmiah Teknik Industri Infotekmesin Matrik : Jurnal Manajemen dan Teknik Industri Produksi Scientific Journal of Mechanical Engineering Kinematika G-Tech : Jurnal Teknologi Terapan Jurnal Teknologi dan Riset Terapan (JATRA) Diseminasi : Jurnal Pengabdian kepada Masyarakat Jurnal Rekayasa Industri (JRI) Jurnal Manajemen Transportasi & Logistik (JMTRANSLOG) Jurnal Optimasi Teknik Industri (JOTI) Indonesian Journal of Industrial Engineering & Management Journal of Industrial View International Journal of Industrial Engineering and Engineering Management JURNAL TEKNIK INDUSTRI Jurnal Pengabdian Masyarakat Bangsa Journal of Community Services in Sustainability Journal Serambi Engineering (JSE) Spektrum Industri Prosiding Seminar Nasional Manajemen Industri dan Rantai Pasok
Sumasto, Fredy
Politeknik STMI Jakarta
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DESAIN OPTIMALISASI TATA LETAK GUDANG PERUSAHAAN MANUFAKTUR KENDARAAN MILITER DENGAN METODE CLASS-BASED STORAGE DAN DEDICATED STORAGE Husain Achmad Alifansah; Febriza Imansuri; Feby Gusti Dendra; Fredy Sumasto
Prosiding Seminar Nasional Manajemen Industri dan Rantai Pasok Vol. 5 No. 1 (2024): Prosiding Seminar Nasional Manajemen Industri dan Rantai Pasok 5th, Jakarta 202
Publisher : Politeknik APP Jakarta

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Abstract

Penelitian ini dilakukan pada Divisi Kendaraan Khusus, salah satu perusahaan manufaktur yang bergerak dibidang pertahanan negara Indonesia yang mempunyai tiga lini produksi dan satu penyimpanan produk jadi (finish goods). Hasil pembelian produk bahan baku dari subkontraktor akan disimpan pada satu gudang yang disebut existing warehouse. Permasalahan yang terjadi pada gudang existing yaitu penyusunan produk yang kurang teratur dan jarak gang antar rak-rak masih sempit mengakibatkan sulitnya mobilitas material handling dalam meletakkan dan mengambil barang. Tujuan penelitian ini yaitu untuk mengimplementasikan perbaikan tata letak gudang existing yang lebih efektif dengan membandingkan metode class–based storage dan dedicated storage beserta perhitungan Ongkos Material Handling (OMH) yang paling optimal. Perbaikan tata letak ini membandingkan metode class-based storage dan dedicated storage hingga didapatkan hasil tata letak yang lebih efektif serta perhitungan OMH yang lebih optimal. Urutan perbaikan tata letak dimulai dari metode class-based storage dan dedicated storage serta perhitungan OMH. Hasil dari pengolahan data dan perbaikan tata letak menggunakan metode class-based storage dengan jarak tempuh sebesar 30.304,5 m dan dedicated storage sebesar 34.133,5 m sedangkan untuk hasil OMH tata letak class-based storage sebesar Rp1.354.995.781/tahun dan untuk tata letak dedicated storage sebesar Rp1.358.743.081/tahun. Hasil dari perhitungan dari kedua metode tersebut didapatkan perbaikan tata letak yang terpilih yaitu perbaikan tata letak dengan menggunakan metode class-based storage dengan penurunan jarak tempuh sebesar 2606,3 m/bulan dan penurunan OMH sebesar dari kondisi awal sebesar Rp7.046.258/tahun. Kata kunci: class-based storage, dedicated storage, existing warehouse, material handling, ongkos material handling
PERANCANGAN DAN ANALISIS EKONOMI FIXTURE PROSES DRILLING UNTUK PENINGKATAN EFISIENSI PRODUKSI KOMPONEN BRACKET VIXION 3C12 CHASSIS FUEL TANK Feby Gusti Dendra; Febriza Imansuri; Amrin; Fredy Sumasto; Agnes Vicky
Prosiding Seminar Nasional Manajemen Industri dan Rantai Pasok Vol. 6 No. 1 (2025): Prosiding Seminar Nasional Manajemen Industri dan Rantai Pasok 6th, Tangerang 2
Publisher : Politeknik APP Jakarta

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Abstract

Penelitian ini berfokus pada perancangan fixture (alat bantu) untuk proses gurdi (drilling) pada komponen Bracket Vixion 3C12 Chassis Fuel Tank. Komponen ini terbuat dari baja karbon rendah dan berfungsi sebagai penyambung tangki dengan landasannya. Permasalahan utama adalah tingginya waktu setup dan potensi kesalahan operator. Penyelesaian masalah dilakukan dengan merancang fixture menggunakan prinsip 3-2-1 lokator dan strap clamp. Hasilnya menunjukkan bahwa penggunaan alat bantu ini berhasil memperkecil waktu setup dan operasi, mengurangi waktu produksi per unit dari 0.037 jam menjadi 0.0176 jam. Dari sisi ekonomi, biaya produksi per unit dapat dikurangi secara signifikan, dari Rp 427,11 tanpa alat bantu menjadi Rp 265,59 dengan alat bantu. Analisis ekonomi menunjukkan bahwa BEP (Titik Impas) tercapai pada 32 unit, dengan total penghematan mencapai Rp 109.520,00 untuk lot size 1000 unit. Selain efisiensi waktu dan biaya, alat bantu ini juga meringankan tugas operator dan dapat meminimasi kecelakaan kerja. Kata kunci: alat bantu produksi, komponen, drilling, locator, clamping
Simulation-Based Analysis for Optimizing ID Card Holder Injection Molding Using Autodesk Fusion Adinda Rahmah Shalihah; Edwin Sahrial Solih; Sanurya Putri Purbaningrum; Ridho Hans Gurning; Fredy Sumasto; Desy Agung
Infotekmesin Vol 17 No 2 (2026): Infotekmesin: Juli 2026
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/

Abstract

This study aims to determine the most suitable initial injection-molding condition for a polypropylene (PP) ID card holder using Autodesk Fusion. Five paired melt-temperature and mold-surface-temperature conditions were evaluated at injection times of 0.5 and 1.0 s, resulting in ten simulation cases. The contribution of this study is a multi-response screening approach before mold fabrication that simultaneously considers fill confidence, injection pressure, quality prediction, cooling time, air traps, weld lines, sink marks, and warpage. All conditions achieved fill-confidence values of 99.67–100%. P4 at 1.0 s produced the highest quality prediction of 85.81% but required 11.87 s of cooling. P2 at 1.0 s was selected as the most balanced condition, with 85.27% quality prediction, 44.98 MPa injection pressure, 4.95 s cooling time, approximately four air-trap areas, 18 weld-line faces, a 0.027 mm sink mark, and 1.736 mm warpage. These simulation results require experimental validation.
Designing Factory Layout and Facilities for Car Front Door Production with CORELAP: A Case Study at PT GMI B. Handoko Purwojatmiko; Fredy Sumasto; Takbir Dhuha Shaffah Ahmad; Shafira Fitriani Hastin
Performa: Media Ilmiah Teknik Industri Vol 24, No 1 (2025): Performa: Media Ilmiah Teknik Industri
Publisher : Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.24.1.86833

Abstract

The automotive manufacturing industry is experiencing significant development and has increasingly complex market demand dynamics. The industrial transformation resulting from these developments has had a significant impact on several automotive manufacturing companies. The value of production efficiency, on-time delivery, and product quality means that companies must have the right strategy in meeting customer demand. Fulfilling customer requests can be realized by opening new adequate facilities. Factory layout and facility design can be a key factor in achieving this goal, especially in the production of front door components model. This research aims to comprehensively detail the design of the factory layout and facilities using the CORELAP method. CORELAP implementation involves collecting supporting data, including Operation Process Chart (OPC), Routing Sheet, Floor Area Requirement, Activity Relationship Chart (ARC), and Activity Relationship Diagram (ARD). The CORELAP method prioritizes spatial relationships to ensure that closely related facilities are strategically located. Design This layout design was created to provide an overview of the strategy for structuring production facilities and their supports to produce an effective and efficient design. Apart from the overview, the analysis carried out can also provide space for stakeholders to be able to utilize the CORELAP strategy in creating new factory layouts and facilities to support improving the company's work performance and meet customer satisfaction. The cost of material handling is calculated to determine the expenses involved in establishing a production facility for car front doors, totaling IDR 763,959. This cost is approximately 10% lower than the current material handling cost, which is IDR 856,888. The results of this research are design proposals that can be utilized or taken into consideration by industrial stakeholders.
WORKFORCE OPTIMIZATION IN AUTOMOTIVE TOOLING: AN ENVIRONMENTAL WORK SAMPLING MODEL Fredy Sumasto; Sabrina Azzahra; Dianasanti Salati; Irma Agustiningsih Imdam; Indah Kurnia Mahasih Lianny; Wilda Sukmawati; Muhamad Agus
Jurnal Teknologi Dan Riset Terapan (JATRA) Vol. 8 No. 1 (2026): Jurnal Teknologi Dan Riset Terapan (JATRA) - Juni 2026
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v8i1.12810

Abstract

This study optimizes labor allocation in automotive mold repair using an environmental-integrated Work Sampling method, addressing gaps in conventional time studies that often ignore contextual variables. Data were collected through 210 observations (42 per day over five days) at MWT, Ltd., incorporating environmental factors such as temperature (31°C) and vibration (0.5 m/s²). The analysis included adequacy testing (N’=168.42), uniformity checks, and standard time calculation using a Westinghouse rating factor of +0.24 and a site-specific allowance of 80.5%, validated against historical data. The results indicate a standardized repair time of 53.16 min/mold at 90% productivity, which is approximately 18% higher than values reported in previous studies due to the inclusion of environmental and competency-related factors. Simulation results suggest that implementing a two-worker shift system could potentially reduce backlog risk by 22% and improve lead time performance from 3.2 to 2.6 days. Environmental factors contributed to 30% of allowance time, revealing a previously unquantified impact. This study introduces a hybrid model integrating environmental ergonomics into non-repetitive task analysis, offering a practical framework for improving productivity, resource allocation, and maintenance efficiency in manufacturing environments.
DESAIN AYUNAN BAYI DARI IKM KERAJINAN ROTAN MENGGUNAKAN METODE QUALITY FUNCTION DEPLOYMENT Febriza Imansuri; Irma Agustiningsih Imdam; Indra Yusuf Rangkuti; Fredy Sumasto; Dewi Auditiya Marizka
Jurnal Teknologi Dan Riset Terapan (JATRA) Vol. 8 No. 1 (2026): Jurnal Teknologi Dan Riset Terapan (JATRA) - Juni 2026
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v8i1.12839

Abstract

Currently, Small and Medium Enterprises (SMEs) are required to meet consumer needs by developing innovative products to compete in the market. Based on interviews with customers of rattan handicraft products, baby swings receive the most complaints, particularly regarding safety, comfort, and durability. Therefore, this study focuses on redesigning rattan baby swings to align with customer needs and compete with modern household products. To achieve this, the study identifies the design requirements and technical characteristics desired by customers through data collection, Quality Function Deployment (QFD) Phases 1 and 2, and product design development. The results of Phase 1 QFD indicate that customer design needs encompass economic, ergonomic, durability, aesthetic, and feature aspects. Meanwhile, the results of Phase 2 QFD indicate that the technical characteristics manufacturers must meet include the use of anthropometric data, design modifications, selection of high-quality raw materials, attractive colors, comfortable padding, and materials free from hazardous chemicals. The swing dimensions were determined based on anthropometric data for adults and infants, referencing the 50th percentile of adult hip height and the 95th percentile of infant arm reach and span.
Applying System Dynamics to Evaluate Lean Manufacturing Interventions in a Traditional Bakery: A Case-based Conceptual Approach Fredy Sumasto; Najla Aulia; Arif Setiadi; Fahriza Putra Zaman; Muhammad Raihan Adil; Febriza Imansuri; Indra Rizki Pratama; Dianasanti Salati; B. Handoko Purwojatmiko
International Journal of Industrial Engineering and Engineering Management Vol. 8 No. 1 (2026)
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/ijieem.v8i1.11805

Abstract

Small and medium-sized enterprises (SMEs) in the traditional food sector often face operational inefficiencies caused by disorganized workspaces, inefficient layouts, and limited adoption of structured improvement practices. These challenges are particularly evident in small bakeries where manual production processes and spatial constraints disrupt workflow continuity. This study aims to analyze the relationships between operational inefficiencies and Lean Manufacturing interventions using a System Dynamics approach. A qualitative case study was conducted at Toko Roti Gelora, a traditional bakery in Jakarta, Indonesia. Data were collected through direct observation, informal interviews, and document analysis over a ten-week field study. Lean diagnostic tools, including Value Stream Mapping and Fishbone Diagram analysis, were employed to identify sources of operational waste. The findings were synthesized into a Causal Loop Diagram (CLD) to represent feedback structures influencing production efficiency. The results identify four key feedback loops shaping the bakery’s operations: two reinforcing loops representing the escalation of inefficiencies and the development of Lean culture, and two balancing loops representing system stabilization through 5S implementation and layout improvements. These interactions suggest how Lean interventions may contribute to reducing search time, motion waste, waiting time, and excess inventory while supporting the development of workplace discipline over time. The study contributes by integrating Lean Manufacturing and System Dynamics to propose a systemic framework for analyzing operational efficiency in SME production systems.
Co-Authors Abdul Wahid Arohman Abdul Wahid Arohman Adhitya Nugraha Duwan Putra Adinda Rahmah Shalihah Adrian Januar Wahab agnes vicky Ahlan Ismono Ahlan Ismono Ahmad Arif Aisyah, Siti Aji, Reza Melliyanno Putra Al Kautsar Permana Aldi Maulana Ali Rachman Hakim Aminudin, Muhammad Amrin Amrin Rapi Andi Muhammad Hanif Tjoppo Anita Putri Permatasari Ardy Riyanto Arif Dzulfikar Arif Muttaqin Arif Setiadi Aritama, Ditya Arrofah, Muhammad Arif Azzahra, Sabrina B. Handoko Purwojatmiko B. Handoko Purwojatmiko Bayu Samudra Bifadhlih, Nafroh Busharmaidi Cantika Puspa Maharani Cessari, Raissa Annisa Chayatunnufus, Tasya Desy Agung Desy Agustin Dewi Auditiya Marizka Dewi Auditiya Marizka Dianasanti Salati Dianasanti Salati Dianasanti Salati Edwin Sahrial Solih Emi Rusmiati Emi Rusmiati Fadhil Fadhlurrohman Nurhadi Fahriza Putra Zaman Fathullah, Abi Sufyan Febriza Imansuri Febriza Imansuri Febriza Imansuri Feby Gusti Dendra Hakim , Ali Rachman Hakim, Ali Rachman Hermawan, Yuda Husain Achmad Alifansah Ibnu Syihab Ikhsanjani, Abdul Malik Imansuri, Febriza Indah Kurnia Mahasih Lianny Indah Kurnia Mahasih Lianny Indra Rizki Pratama Indra Yusuf Rangkuti Irma Agustiningsih Imdam Isma Wulansari Isma Wulansari Ismono, Ahlan Kristanto, Putri Andini Kristofer Simanjuntak Kurnianto, Radif Lai, Kenny Laksmi Ambarwati Ma’ruf, Muhammad Irvan Tantyagus Mohammad Wirandi Muhamad Agus Muhamad Agus Muhamad Fahrul Rozi Muhamad Zen Muhammad Aminuddin, Muhammad Muhammad Raihan Adil Muhammad Raihan Akbar Muhammad Riezqi Ibrahim Muhammad Ryas Anugrah Sahnun Muhammad Zen Najla Aulia Nurhadi, Fadhil Fadhlurrohman Paramita, Astriyani Sandya Prajoti, Harzya Dahmar Prajoti Putra Satria Ra, Taufiqurrahman Rafi Ramadhani Jiwanto Rahmat Dwi Febriyanto Rahmat Dwi Febriyanto Rangkuti, Indra Yusuf Reza Melliyanno Putra Aji Ridho Hans Gurning Ridho Hans Gurning Rifqi Syahputra Awani Rozi, Muhamad Fahrul Rozi, Muhammad Fahrul Rusmiati, Emi Sabit Iqbal Maulana Sabrina Azzahra Safril Safril Safril Salam, Suriadi A. Samudra, Bayu Samudra, Bayu Sanurya Putri Purbaningrum Sanurya Putri Purbaningrum Sanurya Putri Purbaningrum Saputra, Alfiolani Saputra, Yogi Pangestu Satria, Adam Sayidina, Anabel Marcia Septian Adi Cahyo Shabrina Razan Putri Pribadi Shafira Fitriani Hastin Shafiratul Fajri Harisul Husna Shafly, Naufal Lukman Siti Aisyah Siti Aisyah Soekarno, Rahadyan Jyestha Soekarno Solih, Edwin Sahrial Sri Hasyib Saputri Supardi Suroso, Finna Syaeful, Muhamad Eryl Saputra Syarifudin, Ahmad Syarifudin Takbir Dhuha Shaffah Ahmad Teguh Fathurohman Vebriyanti Hayoto Violeta, Kesya Anatama Violeta Wilda Sukmawati Wilda Sukmawati Wirandi, Mohammad Wulansari, Isma Wulansari Yesaya Abdi Nugroho