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All Journal J@TI (TEKNIK INDUSTRI) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Industrial Engineering Online Journal Jurnal Simetris Prosiding SNATIF REKAYASA PERFORMA : Media Ilmiah Teknik Industri Formosa Journal of Science and Technology (FJST) Asian Journal of Social and Humanities Spektrum Industri
Wiwik Budiawan
Program Studi Teknik Industri Fakultas Teknik UNDIP
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USULAN PERANCANGAN TATA LETAK MATERIAL BERDASARKAN FREKUENSI PENGGUNAANNYA DENGAN METODE CLASS-BASED STORAGE (STUDI KASUS: PT KALBIO GLOBAL MEDIKA) Simanjunt, Sarah Jessica Basaria Stefanie; Budiawan, Wiwik
Industrial Engineering Online Journal Vol 13, No 4 (2024): WISUDA PERIODE OKTOBER TAHUN 2024
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Diponegoro

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Abstract

Abstrak PT Kalbio Global Medika merupakan salah satu perusahaan manufaktur yang bergerak di bidangproduksi produk farmasi yang berada dibawah naungan PT Kalbe Farma, TBK. PT Kalbio GlobalMedika memiliki gudang pribadi yang berada di lokasi yang sama dengan perusahaan. Gudang inidigunakan untuk menyimpan material berdasarkan jenis dan suhu yang diperlukan masing-masingmaterial. Dalam proses penyimpanan material pada gudang, PT Kalbio Global Medika memilikipermasalahan dalam proses maksimalisasi kapasitas yang dimiliki, khususnya pada WHPM01(Packaging Material) dan WHRM01 (Raw Material), yang merupakan gudang dengan suhu ruang.Kebijakan penyimpanan dengan metode randomized storage membuat proses penyimpanan kurangefektif dan efisien. Selain pada ketidak efisienan penyimpanan material, hal ini juga berdampak padakurang efektifnya proses material handling yang dilakukan. Oleh karena itu, penelitian ini dilakukanuntuk mengetahui jumlah locator penyimpanan yang diperlukan dan memberikan usulan tata letakpenyimpanan material dengan pertimbangan frekuensi penggunaan material. Penelitian inimenggunakan data historis yaitu data kapasitas barang per pallet, data inventory dan data handoverperiode Juli-Desember 2022, dan jarak material handling dari pintu ke masing-masing locator. Hasildari penelitian ini meliputi jumlah locator dengan allowance yang dibutuhkan untuk menyimpanmaterial pada WHPM01 dan WHRM01, serta usulan perancangan tata letak material dengan metodeclass-based storage.Kata kunci: gudang; penyimpanan; tata letak; class-based storage Abstract [PROPOSED MATERIAL LAYOUT DESIGN BASED ON USAGE FREQUENCY USING CLASS-BASED STORAGE METHOD (CASE STUDY: PT KALBIO GLOBAL MEDIKA)] PT Kalbio GlobalMedika is a manufacturing company producing pharmaceutical products under the auspices of PTKalbe Farma, TBK. PT Kalbio Global Medika has a private warehouse in the same location as thecompany. The warehouse stores materials based on the type and temperature required for each material.In storing materials in warehouses, PT Kalbio Global Medika needs help maximizing its capacity,especially WHPM01 (Packaging Material) and WHRM01 (Raw Material), which have roomtemperature. The warehouse uses the randomized storage method, which makes the storage process lesseffective and efficient. In addition to the inefficiency of material storage, this also impacts theineffectiveness of the material handling process. Therefore, this research was conducted to determinethe number of storage locators required and to provide a layout for material storage, considering thefrequency of material used. This study uses historical data on goods capacity per pallet, inventory data,handover data for the July-December 2022 period, and the distance of material handling from the doorto each locator. The results of this study include the number of locators with the allowance needed tostore materials in WHPM01 and WHRM01, as well as the proposed material layout design using class-based storage methods.Keywords: warehouse; storage; layout; class-based storage
PERENCANAAN PERBAIKAN INVENTORI PADA RAW MATERIAL SILICA MENGGUNAKAN METODE FORECASTING Sitompul, Vania Harlyta Toba; Budiawan, Wiwik
Industrial Engineering Online Journal Vol 13, No 4 (2024): WISUDA PERIODE OKTOBER TAHUN 2024
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Diponegoro

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Abstract PT Solusi Indonesia Tbk merupakan sebuah perusahaan yang bergerak di bidang produksi semen.Produksi dimulai dari proses penambangan bahan baku, proses pengolahan, packaging hinggamenjadi finished good yakni semen yang siap untuk di distribusikan. Berdasarkan data historisperusahaan periode Januari 2020 – Desember 2022 mengenai jumlah consumption dan incoming rawmaterial silica didapatkan bahwa tingginya consumption raw material silica yang tidak disertai denganbanyaknya income dari raw material tersebut. Jika dibiarkar terus menerus hal ini akan menyebabkanterjadinya stockout raw material tersebut pada inventori. Oleh sebab itu perlu dilaksanakanperencanaan dan pengendalian bahan baku menggunakan metode forecasting. Pengawasanpersediaan merupakan masalah yang sangat penting, karena jumlah persediaan akan menentukan ataumempengaruhi kelancaran proses produksi serta keefektifan dan efisiensi perusahaan tersebut. Kata kunci : inventori; bahan baku; silica ; perencanaan dan pengendalian; forecasting Abstract PT Solusi Indonesia Tbk is a company engaged in the production of cement. Production starts from themining process of raw materials, processing, packaging to finished goods, namely cement which isready for distribution. silica raw materials that are not accompanied by the amount of income fromthese raw materials. If left continuously, this will cause a stockout of the raw material in the inventory.Therefore it is necessary to carry out the planning and control of raw materials using forecastingmethods. Inventory control is a very important issue, because the amount of inventory will determineor affect the smooth production process as well as the effectiveness and efficiency of the company. Keywords : inventory; raw material; silica; planning and control; forecasting
ANALISIS POSTUR KERJA PADA OFFICER DAN ADMIN DIVISI LOGISTIK PT XYZ DENGAN METODE CMDQ DAN ROSA Sasson, Putera; Budiawan, Wiwik
Industrial Engineering Online Journal Vol 13, No 3 (2024): WISUDA PERIODE JULI TAHUN 2024
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Diponegoro

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Abstrak Ergonomi perkantoran adalah penerapan ilmu ergonomi yang meliputi keseluruhan lingkungankerja dan alat kerja yang digunakan, seperti perangkat komputer dan kursi. Bahaya umum diperkantoran biasanya disebabkan oleh postur kerja yang tidak baik, gerakan repetitif, dan posisistatis yang dikerjakan dalam durasi yang lama. Cedera yang paling sering dihadapi adalahMusculoskeletal Disorders (MSDs). Penelitian ini akan menganalisis postur kerja officer dan adminDivisi Logistik PT XYZ untuk mengetahui bahaya postur kerja mereka dalam menimbulkan risikoMSDs. Metode yang digunakan dalam penelitian ini adalah Cornell Musculoskeletal DiscomfortQuestionnaires (CMDQ) sebagai scanning awal dan Rapid Office Strain Assessment (ROSA)sebagai instrumen penilaian office ergonomics. Berdasarkan hasil kuesioner CMDQ yang telahdilakukan, didapatkan keluhan tertinggi terdapat pada bagian lower back, hip/buttoks, dan neck. Berdasarkan hasil rekapitulasi ROSA didapatkan postur kerja dengan tingkat risiko berbahayadialami oleh CS Admin Logistik, Officer Logistik, Admin Logistik 2, dan Admin Logistik 3. Masingmasingmemperolehskor7,8,6,dan6.Sementaraitu,AdminLogistik1memilikiposturkerjayangberadapadaambangbatastidakberbahaya,yaituskor5.BerdasarkanhasilmetodeCMDQdanROSA,rekomendasiperbaikanyangdiberikanberupausulanpenggantianfasilitasdanperubahanposturkerja.Kata kunci: CMDQ, ergonomi perkantoran, MSDs, postur kerja, ROSAAbstract [Title: Working Posture Analysis of Logistics Divison Officers and Admins at PT XYZ UsingCMDQ and ROSA] Office ergonomics is the application of ergonomics which covers the entirework environment and work tools used, such as computers and chairs. Common hazards in officesare usually caused by poor working posture, repetitive movements, and static positions that are heldfor a long duration. The most common injuries are Musculoskeletal Disorders (MSDs). This studywill analyze the working postures of officers and admins of the Logistics Division of PT XYZ to findout the dangers of their work postures in causing the risk of MSDs. The methods used in this studywere the Cornell Musculoskeletal Discomfort Questionnaires (CMDQ) as the initial scanning andthe Rapid Office Strain Assessment (ROSA) as an office ergonomics assessment instrument. Basedon the results of the CMDQ questionnaire that was carried out, the highest complaints were foundin the lower back, hip/buttocks, and neck. Based on the results of the ROSA recapitulation, theworking posture with a dangerous level of risk was experienced by Logistics Admin CS, LogisticsOfficer, Logistics Admin 2, and Logistics Admin 3. Each received a score of 7, 8, 6, and 6.Meanwhile, Logistics Admin 1 has working posture that is at the non-hazardous threshold, namelya score of 5. Based on the results of the CMDQ and ROSA methods, recommendations forimprovement are in the form of proposed replacement of facilities and changes to work postures.Keywords: CMDQ, MSDs, office ergonomics, ROSA, working posture
REKOMENDASI PERBAIKAN PENATAAN WAREHOUSE BERDASARKAN KONSEP BUDAYA 5S PADA PT XYZ Poerbaninglaksmi, Dinda Alby; Budiawan, Wiwik
Industrial Engineering Online Journal Vol 13, No 3 (2024): WISUDA PERIODE JULI TAHUN 2024
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Diponegoro

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Abstract

Abstrak Sebagai perusahaan distributor, gudang menjadi elemen kritis PT XYZ. Berdasarkan observasi,terdapat penumpukan barang yang seharusnya menjadi sampah, peletakkan produk tidak padatempatnya, label peletakkan produk belum jelas, dan tidak ada label nama produk pada rak.Akibatnya, karyawan akan kesulitan melakukan proses picking. Dengan karyawan warehousehanya 3 orang dengan pesanan rata-rata sebanyak 50, maka permasalahan akan sangatmenghambat kinerja perusahaan dalam jangka panjang. Salah satu tools untuk melakukanperbaikan adalah 5S. Budaya 5S dapat diartikan sebagai metodologi budaya kerja yang terdiri dariseiri, seiton, seiso, seiketsu, dan shitsuke yang digunakan oleh manajemen untuk memaksimalkanefektivitas tempat kerja dan menumbuhkan tingkat disiplin karyawan dengan tujuan meningkatkanproduktivitas pekerja. Penelitian ini akan menilai dan menganalisis kondisi warehouse pada PTXYZ untuk kemudian merancang rekomendasi perbaikan. Penilaian 5S dilakukan dengan pengisianchecksheet untuk setiap aspeknya. Hasil penilaian kondisi warehouse sebelum perbaikandidapatkan skor seiri sebesar 12, seiton sebesar 9, seiso sebesar 15, seiketsu sebesar 13, danshitsuke sebesar 12. Setelah menganalisis penyebab permasalahan, maka rekomendasi perbaikansetiap aspek dapat dirancang. Beberapa usulan perbaikan tertulis mulai diterapkan perusahaan.Menimbang faktor tersebut ditambah dengan apabila usulan perbaikan lainnya diterapkan makaskor checklist 5S mengalami peningkatan dari 61 menjadi 83.Kata kunci: gudang, budaya 5S, rekomendasi perbaikan, perbaikan berkelanjutanAbstract [Title: Improvement Recommendations Based on the 5S Culture Concept Related to WarehouseArrangement at PT XYZ]. As a distributor company, warehouse is a critical element of PT XYZ.Based on observations, there’s items that should be disposed of, product placement’s not in the rightplace, product labels are unclear, and no product name labels on the shelves. Resulting in employeeswill find it difficult to do picking process. With only 3 warehouse employees and an average orderof 50, the problem will hinder the company's performance in the long term. One of the tools for making improvements is 5S culture. It can be interpreted as a work culture methodology consisting of seiri, seiton, seiso, seiketsu, and shitsuke to maximize workplace effectiveness and foster employeediscipline levels to increase worker productivity. This study will analyze the condition of thecompany’s warehouse and suggest improvement recommendations. The 5S assessment is carriedout by filling out a checksheet. The results obtained a score of 12 for seiri, 9 for seiton, 15 for seiso,13 for seiketsu, and 12 for shitsuke. After analyzing the causes of the problem, improvementrecommendations can be designed. Considering several suggestions began to be implemented bythe company and if other suggestions are implemented, the 5S score increased from 61 to 83.Keywords: warehouse, 5S Culture, improvement recommendations, continuous improvement
DESIGNING A COLLABORATIVE MODEL FOR THE RAW MATERIAL PROCUREMENT PROCESS TO ELEVATE THE FURNITURE INDUSTRY COMPETITIVENESS Hapsari, Chaterine Alvina Prima; Wicaksono, Purnawan Adi; Budiawan, Wiwik; Sari, Diana Puspita; Rahma, Atheea Annisa; Paramestha, Dominico Laksma
J@ti Undip: Jurnal Teknik Industri Vol 18, No 1 (2023): Januari 2023
Publisher : Departemen Teknik Industri, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jati.18.1.12-20

Abstract

The furniture industry is a non-oil and gas sector that can be developed aggressively due to the abundant natural resources provided by Indonesia's forests. However, there are several issues in the wooden furniture industry, starting on the upstream supply chain, especially in the raw material procurement process. The increasing product cost because of high procurement costs could make this industry hard to compete or grow. Thus, this study proposes an improvement of raw material procurement by developing a collaborative model to minimize the total circular procurement cost in the wooden furniture industry supply chain. Adopting the collaborative model is expected to reduce the raw material procurement costs of all parties involved in the supply chain by shortening the supply chain. In addition, this study built a dynamic system model with an implementation circular supply chain concept, which focuses on regenerating the wood raw material toward zero waste. The finding is that a collaborative model could reduce the total circular procurement cost by 25% to 35% compared to the base model. A recommendation for building the terminal comes from the collaborative model. The result of this study provides a solution to elevate the furniture industry's competitiveness through cost reduction.
Organizational Transformation from the Directorate of Goods and Services Procurement to the Directorate of Supply Chain Management Ide Ambardi, Muhamad; Suliantoro, Hery; Budiawan, Wiwik
Asian Journal of Social and Humanities Vol. 4 No. 1 (2025): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/br8eqm90

Abstract

In the modern business environment, organizational transformation has become an essential strategy for enhancing efficiency, adaptability, and competitiveness. As companies face rapid technological and market changes, restructuring internal systems and redefining operational paradigms are necessary to maintain strategic alignment. This study examines the organizational transformation from the Directorate of Goods and Services Procurement to the Directorate of Supply Chain Management (PBJ to SCM) as a paradigm shift from an administrative to a strategic function within a corporate context. Using a descriptive qualitative method and a case study approach, the research explores how this transformation was implemented through organizational restructuring, role redefinition, competency development, and the integration of digital supply chain systems. The findings reveal that these initiatives not only improved procurement efficiency but also enhanced cross-divisional collaboration, transparency, and strategic decision-making. Moreover, the transformation contributed to greater responsiveness to Industry 4.0 demands, positioning the company to compete effectively in a dynamic market environment. This study provides practical insights for organizations undertaking similar organizational transformations, emphasizing that successful change management requires strong leadership commitment, continuous capability development, and digital integration as key enablers for sustainable organizational performance.
Quality Improvement of The Public Service of The Metal Contamination Testing Laboratory Using Lean Six Sigma Approach (Case Study) Wulandari, Ratna Ayu; Prastawa, Heru; Budiawan, Wiwik
Formosa Journal of Science and Technology Vol. 3 No. 4 (2024): April 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v3i4.9205

Abstract

Testing laboratory public services play an important role in providing services to the public in various sectors. Currently, many laboratories only focus on the quality of testing but forget about the timeliness of testing services which affects customer satisfaction as a metric of public service performanceTherefore, to improve quality by achieving timeliness of testing services, this research uses a Lean and Six Sigma approach and risk management. Through the tools used such as Value Stream Mapping (VSM), Spaghetti Diagram, Fish-bone Diagram, PICK Chart in the Define, Measure, Analyze, Improve, and Control (DMAIC) phase of Lean Six Sigma, problems can be identified, analyzed and corrected for improvement. In the measure phase, the completion time for testing services was 17 working days so it did not meet the service time standard (timeliness) which is 16 working days. After the improve phase solution is implemented, the service turnaround time becomes 7 working days. Apart from achieving faster completion times for testing services, the improvement rate for eliminating NVAA was 99.5%, eliminating waiting and over-processing waste by 100%. In order for this achievement to remain controlled, risk statements regarding the timeliness of testing services are identified, analyzed, controlled and monitored. The results of improvement trials on samples, SPM testing services for Pb, Cd, Hg, As metal contamination in food reached 100%.
Thermal Comfort Challenges in Construction: Evaluating the Role of Clothing Insulation and Physiological Responses Budiawan, Wiwik; Limbong, Vanri Apri Yanto; Prastawa, Heru; Saputra, Dhimas Wachid Nur
Spektrum Industri Vol. 23 No. 1 (2025): Spektrum Industri - April 2025
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v23i1.353

Abstract

Construction workers are frequently exposed to extreme outdoor temperatures, which impact their thermal comfort and physiological well-being. High air temperatures and inappropriate clothing insulation can lead to heat stress, reducing worker productivity and increasing health risks. This study aims to evaluate the relationship between clothing insulation, environmental conditions, and physiological responses to improve thermal comfort for construction workers. It contributes to the field by providing empirical data on how clothing insulation influences thermal comfort and physiological responses in a hot and humid construction environment. The findings highlight critical insights for ergonomic work wear design to mitigate heat stress. Data collected over four weeks at an active construction site. Environmental parameters, including air temperature, humidity, air velocity, and solar radiation, were measured using a weather station. Physiological responses, such as heart rate, core body temperature, and skin temperature, were monitored using wearable sensors. Subjective thermal comfort was assessed through structured questionnaires. Association between air temperature, clothing insulation, and skin temperature (p < 0.05). The average air temperature exceeded ASHRAE’s comfort range, and workers experienced increased physiological strain due to high clothing insulation values. Most workers reported discomfort, with 75% indicating that the thermal environment was unacceptable. The study also confirmed that ergonomic clothing adjustments, such as lightweight, breathable fabrics and cooling vests, could enhance thermal comfort and reduce heat stress. These findings emphasize the importance of optimizing work wear to improve construction workers' well-being. Future research should explore innovative materials and cooling technologies to enhance thermal regulation in extreme working environments.
Co-Authors Abda Abda Aldisa Kusumaningsari Andika, Wahyu Ary Arvianto Bambang Purwanggono Diana Puspita Sari Dina Tauhida Dyah Ika Rinawati Dyandra, Halida Ema Amalia Ulfa, Ema Amalia Gusti, Muhammad Fakhri Hapsari, Chaterine Alvina Prima Hardianto Iridiastadi Heru Prastawa Hery Suliantoro I Ketut Suada Ide Ambardi, Muhamad Inggriet Hermanda, Inggriet Limbong, Vanri Apri Yanto Luh Made Indah Sri Handari Adiputra M. Yogi Riyantama Isjoni Nabiel Putra Adam, Nabiel Putra Nartadhi, Rizal Luthfi Nartadhi, Rizal Luthfi Nurrizki, Muhammad Risvan Paramestha, Dominico Laksma Pertiwi Andarani Poerbaninglaksmi, Dinda Alby Prasetyo, Ahmad Dwi Purnawan Adi Wicaksono Putra, Alfredo Buddhi Rahma, Atheea Annisa Ratna Purwaningsih Saputra, Dhimas Wachid Nur Sasson, Putera Setiowati, Farhania Aisyah Siahaan, Lowis Onike Simanjunt, Sarah Jessica Basaria Stefanie Sitompul, Vania Harlyta Toba Unggul Dewandana Erich Bagaskara, Unggul Dewandana Erich Wulandari, Ratna Ayu