cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Isma Masrofah
Contact Email
isma.masrofah@unsur.ac.id
Phone
+62263-283578
Journal Mail Official
jmtsi@unsur.ac.id
Editorial Address
Universitas Suryakancana, Gd. Fakultas Teknik Jl. Pasir Gede Raya, Cianjur 43216 Tel / fax : (0263) 283 578
Location
Kab. cianjur,
Jawa barat
INDONESIA
Jurnal Media Teknik dan Sistem Industri
Published by Universitas Suryakancana
ISSN : 25810561     EISSN : 25810529     DOI : https://doi.org/10.35194/jmtsi.v4i1.844
Core Subject : Science, Engineering,
Decision Sciences, Operations Research & Management Industrial & Manufacturing Engineering
Jurnal Media Teknik dan Sistem Industri (JMTSI) is a publication media for papers with the scope of industrial-engineering field and other relevant fields such as and not limited to: Industrial systems Manufacturing systems Systems Engineering & Ergonomics Industrial Management Supply Chain and Logistics
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 3 Documents
 1 
Search results for , issue "vol. 10 no. 2 (2026)" : 3 Documents clear
Integration of Critical Path Method (CPM) and Material Requirement Planning (MRP) for Optimizing Production Scheduling and Material Procurement in Hull Block Fabrication Muhammad Destri Sahputra Hardi; Hery Irawan
Jurnal Media Teknik dan Sistem Industri Vol. 10 No. 2 (2026)
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jmtsi.v10i2.6353

Abstract

Shipbuilding production systems involve complex and interdependent operational activities that require effective coordination between production scheduling and material procurement processes. In hull block fabrication, production delays frequently occur because scheduling activities and material procurement are often managed separately, resulting in material shortages, waiting time, and extended project duration. This study aimed to develop an integrated framework using the Critical Path Method (CPM) and Material Requirement Planning (MRP) to optimize production scheduling and material procurement in hull block fabrication processes. A quantitative approach with a case study design was employed in this research. Data were collected from operational records, including production activity durations, bill of materials, inventory status, supplier lead times, and production schedules. CPM analysis was used to identify critical activities affecting project duration, while MRP analysis was applied to determine material requirements and procurement schedules. The results showed that all production activities belonged to the critical path sequence with a total production duration of 27 days under existing conditions, where the welding process represented the longest activity with a duration of seven days. The proposed integrated framework reduced production lead time from 27 days to 23 days, reduced production delays from four days to one day, decreased waiting time from three days to one day, increased material availability accuracy from 82.4% to 96.2%, and improved on-time completion rate from 85.2% to 95.1%. The findings indicate that integrating CPM and MRP successfully improved production synchronization and operational efficiency in hull block fabrication processes.
Analysis of Production Line Balance in the Final Assembly Area Using Line Balancing and Promodel Simulation in an Automotive Company Indra Setiawan; Tri Ngudi Wiyatno; Abdilah Putraman Septianto
Jurnal Media Teknik dan Sistem Industri Vol. 10 No. 2 (2026)
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jmtsi.v10i2.6414

Abstract

An imbalanced workload on the production line is one of the main causes of low efficiency in the manufacturing industry. This study was conducted in the final assembly area of an automotive company producing premium brand four-wheeled vehicles, where a significant imbalance in working time was found between two operators. The objective of this study was to balance the division of tasks between operators on the production line. The methods used were line balancing and ProModel simulation. Through precedence diagram analysis and regrouping of workstations, the stamp inspection task was shifted from the first operator to the second operator, resulting in a more even work time of 18 minutes for the first operator and 21 minutes for the second operator. The workflow simplification also succeeded in reducing the number of processes from 8 to 5 workstations, with an increase in line efficiency from 39.06% to 55.55%. The results of the ProModel simulation confirmed this workload balance without any layout changes or additional workers. The ProModel simulation results, which showed an average system time of 17.50 minutes for the first operator and 20.50 minutes for the second operator, further confirmed the feasibility of the designed solution for direct implementation in the field. The time difference between Operator 1 and Operator 2 is utilized to inspect all components, ensuring their completeness and conformity to established standards.
Production Line Efficiency Improvement Using the Line Balancing Method on the 3W Frame Welding Line at PT X Mohamad Zulfahmi; Yuliani Fauziah; Filemondra Damanik
Jurnal Media Teknik dan Sistem Industri Vol. 10 No. 2 (2026)
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jmtsi.v10i2.6581

Abstract

Manufacturing assembly lines frequently face operational inefficiencies due to unbalanced workloads and discrepancies between legacy Work Instructions (WI) and actual shop-floor cycle times. At PT X, the 3W Frame Welding Line exhibited a low initial Line Efficiency (LE) of 54,83% and a 3,290-second time data gap between documented procedures and actual operations, resulting in severe line imbalances and restricted output. This study aims to eliminate the time data discrepancy, redesign the workload allocation across workstations within the target takt time, and evaluate the resulting operational and financial improvements. The methodology integrates the Eight Steps problem-solving framework with the Ranked Positional Weight (RPW) heuristic method and Lean visualization tools, including Standardized Work Combination Tables (SWCT), Standardized Work Charts (SWC), and Yamazumi Charts based on stopwatch time studies. The results show that standardization successfully eliminated the 3,290-second data gap with 100% document accuracy. Following line balancing across three workstations, LE increased significantly from 54,83% to 94.67%, Balance Delay (BD) dropped from 45.17% to 5.33%, and daily production capacity doubled from 10 to 20 units without overtime. This study concludes that combining the RPW method with visual standardized work effectively resolves shop-floor bottlenecks and data asynchrony, delivering a projected Net Quality Income (NQI) of IDR 4,596,249,600 per year.

Page 1 of 1 | Total Record : 3

 1 

Filter by Year

2026 2026


Reset
Filter By Issues
All Issue Vol. 10 No. 2 (2026) Vol. 10 No. 1 (2026) Vol 9, No 2 (2025) Vol 9, No 1 (2025) Vol 8, No 2 (2024) Vol 8, No 1 (2024) Vol 7, No 2 (2023) Vol 7, No 1 (2023) Vol 6, No 2 (2022) Vol 6, No 1 (2022) Vol 5, No 2 (2021) Vol 5, No 1 (2021) Vol 4, No 2 (2020) Vol 4, No 1 (2020) Vol 3, No 2 (2019) Vol 3, No 1 (2019) Vol 2, No 2 (2018) Vol 2, No 1 (2018) Vol 1 (2017) More Issue