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INDONESIA
Jurnal Surya Teknika
Published by Universitas Muhammadiyah Riau
ISSN : 23546751     EISSN : 27237222     DOI : 10.37859
Core Subject : Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
a media of communication and reply forum for scientific works especially concerning the fields of industrial technology, machinery, and automotive.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 361 Documents
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Analisis dan Perbaikan Set Up Time Dies untuk Minimalkan Waktu Henti Mesin Press dengan Pendekatan Lean Manufacturing Metode SMED di PT. Manufacturing Surabaya Afirin, Ady Syamsul
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9383

Abstract

PT. Manufacturing Surabaya is a manufacturing company engaged in the production of clip components for automotive suspension systems. In carrying out its production activities, the company prioritizes high-quality products and good production productivity levels. The problem faced by the company is the high changeover setup time in the Production Division, specifically on the Press Machine. The changeover setup process of the dies on the press machine takes a long time during machine downtime. The setup changeover process reaches up to 3,126 seconds for a single changeover.This study aims to identify the factors causing the lengthy setup changeover process and to propose improvements using the Single Minutes Exchange of Dies (SMED) method. A fishbone diagram analysis indicates that the prolonged setup changeover time is caused by factors related to methods, manpower, machines, and environment.By implementing the SMED method, 21 internal activities were reduced to 16 internal activities. This change reduced the setup time from 3,126 seconds to 2,821 seconds, resulting in a 10% reduction in setup time and thereby improving production productivity.
Analisis Pengendalian Kualitas Produk Furniture dengan Metode SPC dan FMEA pada PT. Multi Manao Indonesia Fadhil, Moch Nur; Khoiroh, Siti Muhimatul
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9387

Abstract

This research addresses the importance of quality control in the furniture industry, particularly in maintaining product consistency and reducing defects. PT. Multi Manao Indonesia, a furniture manufacturing company, faces challenges in quality consistency, especially in the Setting Warna section. This study aims to analyze quality control at PT. Multi Manao Indonesia using the Statistical Process Control (SPC) method, focusing on the Aaron Side Chair product, and further identifying defect causes through Failure Mode and Effect Analysis (FMEA). SPC is used to monitor production process stability and detect variations affecting quality, while FMEA is applied to assess and prioritize potential failure modes. The findings are expected to support the company in improving process control, reducing defects, and enhancing production efficiency.
Perencanaan Kebutuhan Bahan Baku Pembuatan Kursi Susun untuk Memenuhi Permintaan Konsumen Nugroho, Septian Adi; Mundari, Siti
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9389

Abstract

PT. XYZ is a manufacturing company that produces various products such as PVC pipes, concrete products, and wooden furniture, including chairs. Currently, the company faces constraints in controlling raw material inventory for BR-600 Chair and Folding Chair products because it has not used scientific calculation methods in planning its needs. This causes an imbalance between the amount of inventory and production needs, which has an impact on overstock and understock. Overstock results in increased storage costs and the risk of obsolete raw materials, while understock causes production delays and potential loss of sales. This study aims to design a raw material inventory control system using a dynamic deterministic approach and determine the most optimal method. The approaches used include demand forecasting using the Single Exponential Smoothing and Moving Average methods, as well as calculating safety stock, optimal order size (lot size), and total inventory costs. Furthermore, inventory control planning is carried out using the Wagner-Whitin Algorithm and Silver-Meal Algorithm. The results of the study show that the application of the Wagner-Whitin Algorithm and Silver-Meal Algorithm methods in dynamic deterministic inventory control can reduce the total cost of raw material inventory for BR-600 Chair and Folding Chair by 5% and 3% respectively compared to the company's real method previously used by the company. Between the two, the Wagner-Whitin Algorithm method proved to be the most optimal with a total inventory cost of IDR 3,388,833,000.
Analisa dan Perbaikan Bottleneck pada Proses Hot Press Marcelo, Alfian; Herlina, Herlina
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9390

Abstract

PT. XYZ is a ceramic manufacturing company with several production lines, including the Mould Division at Plant 2, which is responsible for producing punches used as molds for the pressing machines. Based on observations and weekly production data analysis, a bottleneck was identified in the hot press process, resulting in failure to meet the production targets. This issue is indicated by a high average cycle time of 70.54 minutes per unit, which exceeds the ideal 56.25 minutes required to achieve the daily target of 8 units per shift.This study aims to identify the main causes of the bottleneck in the hot press process and propose improvements to enhance production efficiency. The methodology applied includes Value Stream Mapping (VSM) from the Lean Manufacturing framework to map the entire process flow and identify non-value-added activities. In addition, the Root Cause Analysis (RCA) method is utilized to trace the fundamental causes of the bottleneck.
Optimasi Waktu Setup Mesin Extruder dengan Single Minute Exchange of Dies dan Value Stream Mapping untuk mengurangi Waste Setup Delay Firdaus Al Amin, Muhammad
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9391

Abstract

Amid intense competition in the manufacturing industry, production efficiency is crucial to improving productivity. PT. Manufacturing Sidoarjo, a CPP film producer, faces challenges with long setup times on the extruder machine, reaching up to 296 minutes, comprising 60 minutes for material preparation, 120 minutes for heating, and 60 minutes for trial runs. This issue increases operational costs and reduces competitiveness. The study applies the Single Minute Exchange of Dies (SMED) method to reduce setup time and Value Stream Mapping (VSM) to identify non-value-added activities. As a result, setup time was reduced to 193 minutes, achieving a 34.8% time efficiency, which enhances operational efficiency and production capacity.
Analisis Investasi Kelayakan Penambahan Armada Terhadap Biaya Oprasional dan Layanan Prayogi, Tio Isman; Muhimatul Khoiroh, Siti
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9392

Abstract

This study investigates the feasibility of investing in additional logistics fleets at PT XYZ, a manufacturing company based in East Java engaged in the production of rice and glutinous rice flour using imported raw materials. The complexity of distribution in the context of growing demand from MSME customers has caused operational problems in the form of late deliveries and backlog orders due to the limited number of available fleets. To overcome these problems, this study applies a quantitative approach based on investment analysis techniques, including Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PP), and Sensitivity Analysis. Primary data were obtained from field observations and interviews, while secondary data came from the company's logistics records for the period November 2023 to January 2024. The results of the analysis show that additional fleets have a significant impact on improving service quality and distribution cost efficiency. The NPV and IRR approaches indicate that the investment is financially feasible, with a positive NPV value and IRR exceeding MARR. Meanwhile, the Payback Period is within a reasonable payback period according to the economic life of the fleet. Further sensitivity analysis confirms that variables such as operating costs and annual income are the main determinants of investment feasibility. These findings provide a strategic basis for data-based logistics investment decision-making, while strengthening the company's competitiveness in meeting customer expectations amidst competitive market dynamics.
Analisis Kelayakan Investasi Mesin Pencetak Bola untuk Memenuhi Kebutuhan Pasar Abdillah, Nanda Moh Surya; Wati, Putu Eka Dewi Karunia
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9395

Abstract

UD. XYZ is facing increasing market demand for striped plastic ball variants but does not yet have a machine capable of producing the product. This study aims to evaluate the feasibility of investing in purchasing a small striped plastic ball molding machine as a strategic solution. A financial feasibility analysis was conducted using the Net Present Value (NPV), Internal Rate of Return (IRR), Benefit-Cost Ratio (BCR), and Payback Period (PP) methods. The evaluation results indicate that this investment is highly feasible, with a positive NPV of Rp144,594,680, an IRR of 68.48% (exceeding the benchmark interest rate of 10%), and a BCR of 1.295. The payback period is estimated to be only 1 year 5 months 12 days, indicating a fast and efficient return. The implementation of this machine is expected to increase production capacity, meet market demand, and strengthen the company's competitiveness and growth.
Analisa Pengendalian Kualitas Produk Pipa Besi pada CV. XYZ dengan Metode Statistical Quality Control (SQC) Huda, Fauzi Lukman; Muhimatul Khoiroh, Siti
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9396

Abstract

This research investigates the quality control system for iron pipe products at CV. XYZ through the application of Statistical Quality Control (SQC). Recognizing the critical role of quality control in ensuring product standards and customer satisfaction within manufacturing, the study employs SQC methodologies, including control charts, Pareto diagrams, and fishbone diagrams, to analyze production process variations. Production data on iron pipe defects over a specific period November 2024 to May 2025. The analysis revealed prevalent defect types and indicated a statistically uncontrolled production process. Consequently, the study recommends a thorough evaluation and improvement of the underlying processes contributing to quality issues. Consistent implementation of SQC is projected to enable CV. XYZ to enhance product quality, minimize defects, and improve overall production efficiency.
Redesain Mesin Pengiris Singkong dengan Mekanisme Counterweight Gravity Feeder untuk Meningkatkan Produktivitas Kusuma Dewi, Wiranti; Murnawan, Hery
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9412

Abstract

The Bojonegoro Cassava Chip MSME “Pak Ipul” faces production capacity constraints because its cassava slicing machine can only process 30 kg of cassava per hour. This study aims to redesign the cassava slicing machine by improving several key components such as the cassava feed chute, cutting blade, frame, motor + reducer, and drive system. The machine redesign is based on operator anthropometric data, referencing body dimensions such as elbow height while seated (64.46 cm), polyptal height (40.85 cm), knee height (50.33 cm), distance from elbow to fingertip (74.66 cm), and hip width while seated (45.15 cm), to create an ergonomic and safe design for the operator. The newly designed machine has a production capacity of 60 kg per hour, which is more efficient than the previous machine. The total cost of manufacturing the new machine is Rp 6,000,000, with raw material costs of Rp 3,900,000 and labor costs of Rp 2,100,000. Test results show a 50% increase in productivity, with a reduction in the time required to slice 75 kg of cassava from 2.5 hours to 1.25 hours. Depreciation analysis indicates that the new machine has a longer economic lifespan of 5 years, with annual depreciation of Rp 1,080,000, compared to the old machine, which only lasted 1 year. The Net Present Value (NPV) calculation for the new machine shows Rp 1,060,798.76, significantly higher than the old machine, which only generates Rp 24,235.45. Therefore, although the initial investment for the new machine is higher, it offers more significant long-term benefits and is worthwhile as an investment.
Perancangan Ulang Tata Letak Area Produksi untuk Mengurangi Biaya Material Handling di PT.XYZ Santoso, Angelina Jeni; Murnawan, Hery
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9413

Abstract

PT. XYZ is a company engaged in the printing and packaging industry, located in East Java. PT. XYZ implements a Make to Order (MTO) production system, where the production process is carried out based on customer orders. The products produced in this study include Product A, B, C up to Product I, with various sizes and types of paper according to customer requirements. This research was conducted to address the problem of high material handling costs caused by inefficient material movement distances in the production area. Therefore, a facility layout redesign (relayout) was carried out to minimize material movement distances and reduce material handling costs. The research methods involved collecting primary and secondary data, analyzing the initial layout, designing two alternative layout proposals, and conducting simulations using FlexSim software. The results showed that Layout Proposal 2 provided the best efficiency, with a reduction in total material handling costs from Rp114,491,573 to Rp84,473,414 and a decrease in total material movement distance from 2,142 meters to 1,657 meters. This relayout proved that proper facility arrangement can improve production efficiency and reduce operational costs.

Page 34 of 37 | Total Record : 361

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