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Rancang Bangun Alat Angkut Bahan Baku Guna Meningkatkan Efektivitas Material Handling dengan Pendekatan Ergonomi Hartono, Moh Arief Andri; Purnama, Jaka
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 2 (2024): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i2.27927

Abstract

PT Candi Jaya Amerta is a company engaged in the food sector and produces various types of traditional crackers, such as shrimp crackers, fish crackers, and other variations. The process of manually transporting flour raw materials at PT CJA takes a long time so that it can reduce the effectiveness of material handling. In this study, the design of an ergonomic raw material transport tool was carried out with the aim of reducing the level of fatigue in workers and speeding up the process of moving raw materials. the method used is the anthropometric method. the results of collecting anhtropometric data on workers are used to design the tool. the cardiovascular load method is used to measure the level of fatigue of workers based on the pulse rate of workers. the dimensions of the tool have a height of 114cm, width of 80cm, length of 125cm, and tool reach of 88cm. the percentage of worker fatigue is known with % CVL before using the tool design. worker 1 = 72.5%, worker 2 = 61.22% then there is a decrease in fatigue levels after using the tool design to %CVL worker 1 = 43%, worker 2 = 26%.
Rancang Bangun Mesin Penggiling Sambel Pecel dengan Penerapan Antropometri Guna Meningkatkan Efisiensi dan Kepuasan Pengguna (Studi Kasus: UMKM Warung Pecel dan Rujak 46) Krishartanto, Riski; Purnama, Jaka
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 2 (2024): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i2.27931

Abstract

The sambel pecel grinding machine is a machine used to smooth the ingredients of sambel pecel. The ingredients for making sambel pecel consist of fried peanuts, brown sugar, red chili, garlic, lime leaves, and other ingredients. All these ingredients will be ground to make sambel pecel. UMKM pecel and rujak coffee shop 58 in the process of grinding sambel pecel still requires services from other places, so that condition causes the production process to be less efficient. The purpose of this research is to make a sambel pecel grinding machine part of the transmission system.The results of the design of the resource and transmission parts of the sambel pecel grinding machine are: the resource used is an AC electric motor with a power of 0.268 Hp and a rotation speed of 2900 rpm, the transmission used is a pulley and a type A V-belt to drive the grinder, the diameter of the drive pulley used is 65 m, the driven pulley is 130 mm, the length of the V-belt circumference is 711 mm, number of belts required 1 piece, and uses a WPA 40 gearbox with a ratio of 1: 20.
Optimization of Transportation Mode Selection for EPC Project Logistics Using Analytical Hierarchy Process (AHP): A Case Study of RoRo-Based Inter-Island Material Delivery in Indonesia Shohib, Muhammad; Tjendani, Hanie Teki; Purnama, Jaka
International Journal of Artificial Intelligence Research Vol 9, No 1.1 (2025)
Publisher : Universitas Dharma Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29099/ijair.v9i1.1.1589

Abstract

Efficient logistics management plays a crucial role in the success of EPC projects, particularly when transporting heavy fabricated components across island regions. This study aims to identify the most optimal transportation mode using the AHP based on six key criteria: cost, lead time, risk, load capacity, flexibility, and port accessibility. A hierarchical decision model was developed and assessed by seven expert respondents, with calculations performed using Expert Choice 11. The results indicate that cost, lead time, and port accessibility hold the highest priority weights, reflecting their strategic importance in EPC logistics. The synthesis of criteria and alternative weights identified Roll-on/Roll-off (RoRo) as the most suitable transportation mode, outperforming cargo ships, barges, LCTs, and truck combinations. Validation using actual project data further confirmed this result: the total delivery cost using RoRo amounted to IDR 1,126,000,000, representing a 22% savings compared to the planned budget, and only 1.66% of the total project cost significantly lower than industry benchmarks of 8–11%.  The results confirm that AHP constitutes an effective and reliable approach for transportation mode selection in EPC projects. The study offers actionable managerial insights and advances the application of multi-criteria decision-making in construction logistics.
Analisis Jumlah Pekerja Metode Work Load Analysis PT. Kasa Husada Wira Jatim Pratama, Agit Septian; Purnama, Jaka; Yuwono, Istantyo
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.3816

Abstract

Sumber daya manusia merupakan elemen krusial dalam keberlangsungan proses produksi, karena jumlah tenaga kerja yang sesuai dengan beban kerja akan berpengaruh langsung terhadap produktivitas, kualitas produk, serta efisiensi biaya operasional perusahaan. Penelitian ini dilakukan di PT Kasa Husada Wira Jatim, sebuah perusahaan yang bergerak di bidang produksi alat kesehatan, dengan tujuan menentukan jumlah tenaga kerja optimal pada proses produksi kasa lipat. Penentuan kebutuhan tenaga kerja dilakukan menggunakan metode Work Load Analysis (WLA), yang mampu mengukur beban kerja aktual berdasarkan waktu rata-rata, standar deviasi, kecukupan data, serta performance rating dari setiap elemen kerja. Elemen-elemen yang dianalisis mencakup proses penerimaan bahan baku, pemeriksaan kualitas, pemotongan, pelipatan, hingga tahap pengemasan. Seluruh tahapan tersebut diukur secara sistematis untuk memperoleh gambaran akurat mengenai waktu baku yang dibutuhkan dalam menyelesaikan setiap aktivitas produksi. Hasil penelitian menunjukkan bahwa seluruh data telah memenuhi batas kecukupan sehingga valid untuk digunakan dalam perhitungan kebutuhan tenaga kerja. Berdasarkan analisis waktu baku dan tingkat beban kerja, diperoleh jumlah tenaga kerja optimal yang diperlukan guna mencapai target produksi dengan efisiensi maksimal. Temuan ini memberikan gambaran penting bagi perusahaan dalam menyusun strategi pengelolaan sumber daya manusia yang lebih efektif, adaptif, dan berkelanjutan. Selain itu, penelitian ini dapat dijadikan referensi dalam meningkatkan produktivitas serta memastikan kualitas produk tetap terjaga melalui penataan tenaga kerja yang tepat dan terukur
Integration of Store Layout Redesign and MySQL-Based Digital Accounting System to Improve Operational Efficiency of Retail SMEs Purnama, Jaka; Rosyidiin, Afrigh Fajar; Arief, Zainal
Heuristic Vol 22, No 2 (2025)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/heuristic.v22i2.132950

Abstract

This study aims to improve operational efficiency and financial management at Toko Pink 31 Surabaya by integrating two key components: store layout redesign and the development of a MySQL-based accounting system. The research uses a combination of qualitative and quantitative approaches through observations, interviews, system design, and simulations. The redesigned layout was developed using the Systematic Layout Planning (SLP) method and simulated via AnyLogic software to evaluate customer flow and service bottlenecks. The results showed significant improvements in space utilization, reduced customer congestion, and enhanced overall shopping experience. In parallel, the accounting system was developed using MySQL to automate and structure financial transactions. The system includes modules for product input, sales, purchasing, cost of goods manufactured (COGM) reporting, and daily financial summaries. The implementation of this digital accounting system reduced manual errors, streamlined transaction processing, and provided real-time access to financial data. The integration of both layout optimization and digital accounting demonstrates a comprehensive transformation model for SMEs, particularly in the retail sector. The findings emphasize that combining spatial efficiency and financial digitalization can significantly improve business performance, supporting broader efforts to digitalize micro and small enterprises in Indonesia.
Cost Analysis of Road Performance Improvement on Yos Sudarso Road, Baubau City Nasir, Jamiludin; Witjaksana, Budi; Purnama, Jaka
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 10 (2026): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i10.607

Abstract

Yos Sudarso Road in Baubau City is a major urban corridor that has experienced a decline in traffic performance due to intensive activities in commercial, tourism, and port areas, resulting in high side friction caused by on-street parking and vehicle maneuvering. These conditions reduce the effective road capacity and degrade the level of service. This study aims to estimate the cost required to improve road performance as a basis for practical and applicable traffic management recommendations. The research employs a quantitative approach by identifying improvement alternatives, calculating work volumes, and estimating costs based on the 2022 Indonesian Public Works Unit Price Analysis (Analisa Harga Satuan Pekerjaan, AHSP) for Road and Bridge Works and the 2024 Baubau City Standard Unit Cost (Harga Satuan Pokok Kegiatan, HSPK). The results indicate that traffic management measures in the form of one-side on-street parking arrangement and installation of no-parking traffic signs require a total cost of IDR 57,000,000.00. This cost is relatively economical and effective in improving road capacity and traffic performance without physical road widening.
Topographical Challenges and Cost Risk Management in Road Construction: Integrating Design Analysis and Unit Price Method (AHSP) in Hilly Areas of Indonesia Rustam, Rustam; Witjaksana, Budi; Purnama, Jaka
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 10 (2026): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i10.608

Abstract

Road construction in hilly regions of Indonesia presents complex technical and financial challenges due to extreme topographical variations. This study examines the integration of technical design analysis with the Indonesian Standard Unit Price Method (AHSP) to improve cost estimation accuracy and risk management. Using the Batauga–Sampolawa road project in South Buton Regency as a case study, the research analyzes how longsection and cross-section designs influence earthwork volumes and subsequent cost structures. Results indicate that hilly topography necessitates significant slope stabilization measures and unbalanced cut-fill volumes, directly impacting cost distribution. Through AHSP-based cost projection for 2025, the study identifies critical risk factors including fuel price volatility, material classification uncertainties, and equipment productivity in steep terrain. The research demonstrates that an integrated design-cost approach enables more realistic budgeting and proactive risk mitigation in hilly road projects. Recommendations include the adoption of digital terrain modeling, AHSP adjustment factors for hilly conditions, and contingency planning for geotechnical uncertainties.
Analysis of Clean Water Distribution Pipe Implementation Time Using Value Engineering Method in Rungkut Industri Surabaya Rois, Ahmad; Wulandari, Esti; Purnama, Jaka
Jurnal Teknik Indonesia Vol. 5 No. 1 (2026): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v5i1.796

Abstract

Clean water distribution infrastructure projects in industrial areas face significant challenges related to cost efficiency and implementation time, which directly impact project sustainability and operational effectiveness. This study analyzes the cost and time efficiency of the clean water distribution system in the Rungkut industrial area, Surabaya, by applying the Value Engineering (VE) method. The main objective of this study is to evaluate and compare the performance of three commonly used types of pipes—namely HDPE (High-Density Polyethylene), uPVC (unplasticized polyvinyl chloride), and GI (galvanized iron)—to determine the most optimal alternative without reducing the function or quality of the clean water distribution system. Data collection was conducted through a combination of methods: distributing questionnaires to professional respondents in civil engineering and water installation fields, conducting direct interviews with project-related parties, and analyzing technical documents and costs from actual projects. The obtained data were analyzed using the Relative Importance Index (RII) method to assess key aspects such as cost efficiency, ease of installation, and material durability. The results showed that HDPE pipes offer superior cost and time efficiency compared to the others. The cost difference between HDPE and uPVC pipes is Rp1,407,577, while that with GI pipes is Rp731,885. In terms of time, HDPE pipes can reduce implementation duration by up to 39 days compared to uPVC pipes and by 9 days compared to GI pipes.
Penerapan Metode Continous Review System dalam Proses Pengendalian Bahan Baku Karet Guna Meminimalkan Stock Akbar, Muhammad Ghany; Nuha, Hilyatun; Purnama, Jaka
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.52177

Abstract

PT Putrasean Rubber Industri faces recurring shortages of brown rubber, which lead to stock outs, production delays, and increased inventory costs. This study aims to apply the Continuous Review System (CRS) method to improve raw material inventory control, minimize shortages, and reduce total inventory costs. The research uses production, demand, lead time, ordering cost, holding cost, and shortage cost data from September 2024 to August 2025. The CRS method is analyzed through two scenarios—back order and lost sales—and compared with the company’s existing inventory system. The results indicate that CRS provides more accurate calculations of optimal order quantity, safety stock, and reorder point. Furthermore, CRS generates lower total inventory costs compared to the existing method. Overall, the application of CRS is proven to be more efficient in ensuring production continuity and meeting customer demand consistently.
Analisis Beban Kerja dan Studi Waktu Kerja dalam Upaya Meningkatkan Kinerja Produksi pada UMKM Sambal Clarita, Shindy Angel; Purnama, Jaka
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.52289

Abstract

UMKM Sambal in Surabaya produces chili sauce using semi-manual processes and still faces problems related to high workload, unstable processing time, and unbalanced task distribution. This study aims to analyze physical workload, determine standard time, and evaluate labor requirements in the production process. The methods used include Cardiovascular Load (CVL), Stopwatch Time Study, and Workload Analysis (WLA). The CVL results show that the highest level of physical fatigue occurs in the cooking process. Time study results indicate that the standard output is determined by the process with the minimum production capacity, namely the cooking process as the production bottleneck. The WLA analysis on the cooking process shows a workload exceeding 100%, indicating an overload condition. Therefore, this study recommends optimizing task allocation and improving labor utilization to enhance productivity, efficiency, and production stability.
Co-Authors Afrigh Fajar Rosyidiin Ahmad Rois Akbar, Muhammad Ghany Alamsyah, Anggatha Misykat Alvianto, Deny Nur Antoni, Darius Bain Khusnul Khotimah Budi Witjaksana, Budi Clarita, Shindy Angel Eko Pramono Esti Wulandari Eza Rahmanita Febyyanti , Nurul Hanie Teki Tjendani, Hanie Teki Hardianto, Kresna Frantiarno Hartono, Moh Arief Andri Hendra Effendi Istantyo Yuwono, Istantyo Juwandono, Joko Tri Kisawa, Musthofa Korib, Fatkhan Krishartanto, Riski Lingardi Wiratama Lutfi, Moh Ali Mayah, Vivi Melani, Yayuk Ike Muchtar, Muhammad Muhamad Akbar Muhammad Shohib, Muhammad Munir Munir, Munir Nasir, Jamiludin Nuha, Hilyatun Nur Rizka Athirah Nurdiyanton, Nurdiyanton Permana, Midi Agus Pratama, Agit Septian Pridase, Figo Purnama, Rieza Rijky Raimundo, João Ridha Annisa Imaniar Ridwan, Ridwan Rustam Rustam Setiawati, Nadila Dwi Vivi Mayah Wibisono, Satria Abdi Wulandari , Esti Yayuk Ike Meilani Yayuk Ike Melani Yayuk Ike Melani Yeni Kustiyahningsih Zain, Badrus Sibyan Zainal Arief Zainal Arief