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All Journal Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Jurnal Ilmiah Teknik Industri Jurnal Mitra Teknik Industri
Kristina, Helena Juliana
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Industrial & Manufacturing Engineering Transportation

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Journal : Jurnal Mitra Teknik Industri

 1 
PENINGKATAN KUALITAS DAN MINIMASI WASTE PADA PRODUKSI KAWAT TEMBAGA DENGAN METODE LEAN SIX SIGMA Karuna, Rio; Kristina, Helena Juliana; Sukania, I Wayan
Jurnal Mitra Teknik Industri Vol. 2 No. 3 (2023): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v2i3.28418

Abstract

The company where the research was conducted in 2014 located in Java Island, this company is engaged in the production of copper wire as a raw material for copper cables. The company experienced major problems, namely high transportation and production costs, as well as waiting time due to repairing defective products. This is because the quality control process of raw materials has not been effective in detecting the cause of defective products. In this study, it used the lean six sigma method with the DMAIC (Define, Measure, Analyze, Improve, Control) approach to minimize waste and improve the quality of copper wire measuring 2.8 mm. After anlysis and data processing, the percentage of defect waste was 28.98%, waiting waste was 22.91%, and overprocessing waste was 18.87%. Meanwhile, the DPMO value was 6539 and the sigma value was 3.98. In the PCE calculation to find out the value of the efficiency of the production process, a value of 39.72% was obtained. After various kinds of analysis are carried out to find out the root cause of the problem, corrective actions are carried out in accordance with the cause of the existing problem. The result of this research for the company is the provision of proposed improvements in the form of making one-point lessons and checksheets to reduce the production of defective goods.
PERANCANGAN STRATEGI PERUSAHAAN MENGGUNAKAN METODE BALANCED SCORECARD DAN HOSHIN KANRI PADA PERUSAHAAN GARMEN Peribadi, Sylvia Angeline; Kristina, Helena Juliana; Saryatmo, M Agung
Jurnal Mitra Teknik Industri Vol. 3 No. 2 (2024): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v3i2.32012

Abstract

The research was conducted in a garment company which is a manufacturing industry company engaged in garment or clothing. To be able to compete in similar industries, it is important to measure performance to assess the extent to which the company has made progress in the company's success in achieving the targets set. The company has so far only seen from the financial aspect, there has been no comprehensive performance measurement. Performance measurement uses the Balanced Scorecard (BSC) method which consists of 4 perspectives, namely finance, customers, internal business and learning and growth. BSC aims to help companies determine priorities and monitor the company's progress in achieving goals. From these 4 perspectives, each weight is 0.307; 0,260; 0,247; 0,186. In the Objective Matrix (OMAX) method which aims to measure company productivity and Traffic Light System which aims to make it easier to interpret the achievement of company performance obtained from 12 key performance indicators (KPIs) there are 3 KPIs that have reached the target, 5 KPIs that have almost reached the target including increasing profits, increasing customer loyalty, improving good relationships with customers, reduction of product defec, as well as routine employee training and 4 KPIs that are still below the target include adding new customers, reducing work accidents, increasing employee satisfaction and increasing employee discipline. After that, using the Hoshin Kanri Planning X-Matrix method to design strategies so that the company can achieve long-term goals and continue to strive for improvement and growth.
PENERAPAN LEAN SIX SIGMA PADA UPAYA PENINGKATAN KUALITAS DAN EFISIENSI PROSES PADA PRODUKSI EMBOSSED SIGNAGE Putra, Yohanes Widhiasmara; Kristina, Helena Juliana; Saryatmo, M Agung
Jurnal Mitra Teknik Industri Vol. 3 No. 3 (2024): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v3i3.33044

Abstract

The research was conducted at an advertising company with the object of research being signage or advertisements with the purpose to improving the quality of production process, and increasing the efficiency value of the production process. Based on the results of field studies, waste occurs in the production process in the form of defects, overproduction and inventory waste. Data collection was carried out by direct observation at the company, and interviews with the operational director. It was found that the average percentage of embossed signage defects in January to June 2023 was 6%. The method used to overcome this problem is Lean Six Sigma with the DMAIC stages (Define, Measure, Analyze, Improve, Control). The define stage uses SIPOC and CTQ diagrams to identify problems. The measure stage will use WAM to identify waste. The PCE value obtained at the measure stage was 56.01%, and the DPMO and sigma values were 22,742 and 3.5. Next, an analysis of the causes of the problem is carried out at the analyze stage. The analysis was carried out with the help of tools in the form of fishbone diagrams, why-why analysis, and FMEA. In FVSM, PCE was found to be 58.26%, which indicates that there has been an increase in the efficiency of the production process. Based on the results of the analysis, suggestions for improvements are provided to improve the quality of production and production processes at the company. At the control stage, control is carried out on the results of proposed improvements strictly before recalculation is carried out after implementing the improvements.
PENERAPAN TOTAL PRODUCTIVE MAINTENANCE (TPM) DALAM MENINGKATKAN EFEKTIVITAS MESIN PENGEMAS DI PERUSAHAAN FARMASI Harnawan, Christianto; Kosasih, Wilson; Kristina, Helena Juliana
Jurnal Mitra Teknik Industri Vol. 3 No. 3 (2024): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v3i3.33050

Abstract

As a company that continues to make progress and various innovations, one of the pharmaceutical companies in Jakarta continues to make continuous improvements, especially in production effectiveness and efficiency. Line 2 – CJ 3 machine is a packaging machine for liquid products which located in the black area and it has the highest running time. Based on production results and defect data for the period January 2023 to July 2023, this machine produces an average of around 23.439% defects and has various problems that affect production efficiency. The aim of this research is to determine the level of machine effectiveness using the OEE (Overall Equipment Effectiveness) method, identifying factors that influence the OEE (Overall Equipment Effectiveness) value using Six Big Losses analysis, Pareto Diagram, Fishbone Diagram, FMEA (Failure Mode and Effect Analysis), and provide suggestions for improvements and recommendations by implementing TPM (Total Product Maintenance). Based on research, the average of OEE value for Line 2 – CJ 3 machine was 47.676% and the average of reduced speed losses value was 24.999% as the bigest six big losses. The results of analysis using a fishbone diagram show that the influencing factors are man, machine, method, and material. The highest RPN (Risk Priority Number) value obtained was 294 and the lowest was 70. The improvements using TPM will be focused on Autonomous Maintenance, Planned Maintenance, and Education and Training.
PENERAPAN METODE SIX SIGMA GUNA MENGURANGI BIAYA KUALITAS PADA PRODUK CELANA OLAHRAGA Suteja, Ricky; Kristina, Helena Juliana; Salomon, Lithrone Laricha
Jurnal Mitra Teknik Industri Vol. 3 No. 3 (2024): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v3i3.33052

Abstract

In modern times, there are many large companies operating in various fields, one of which is a company operating in the industrial sector. This garment factory is a large company located in the Cirebon area which operates in the garment sector. The garment products from this garment factory have been sold nationally and internationally with garments ranging from children's clothing to adult clothing. However, in 2020 this company is focused on producing sports pants garments ordered by buyers in the United States. This factory has produced defects in garment products for the last 2 years with a figure reaching 25% of total production. Therefore, in this research, a product quality improvement strategy was carried out using the Six Sigma (DMAIC) method and examining the quality costs incurred by the company. Defects found in garment factories include pinholes, dirt, wrinkles, broken stitches, poor trimming, and skipping. The most common defect is "skipping". Based on the DPMO and sigma level calculations, the company's DPMO value is 127,199.735 and the sigma value is 2.37 during July 2023 to October 2023. By using these two methods the aim is to provide a quality improvement strategy and find out the quality costs that can function effective in order to provide benefits for the company.
PENERAPAN LEAN SIX SIGMA DI PERUSAHAAN FARMASI PADA PROSES PENGEMAS PRODUK BLISTER Ongan, Freddy Bano; Kosasih, Wilson; Kristina, Helena Juliana
Jurnal Mitra Teknik Industri Vol. 3 No. 3 (2024): Jurnal Mitra Teknik Industri
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmti.v3i3.33053

Abstract

Pharmaceutical Companies are manufacturing industries operating in the pharmaceutical sector where these companies produce solid, semi-solid and liquid product extractions. In the production process in the packaging section in dense areas as the object in this research, it is not uncommon to experience waste in the form of product defects such as dirty blisters, ciplongs, and so on, as well as non-value added activities. To solve this problem, a lean six sigma approach was carried out through the DMAIC stages. This research aims to find out the types of waste, find out the main causes of product defects, find out the DPMO value and sigma level, and provide solutions in the form of suggestions to overcome existing problems to Pharmaceutical Companies. Through the definition stage, it is known that the object of this research is product The data collection method used is through observation, interviews and questionnaires. Based on the known measurement results/calculations and analysis, it can be seen that the company's PCE value is 14.93%, the company's DPMO value is 3.477 with a sigma level of 4.20. Through the Pareto diagram, 3 main wastes were identified, namely defects at 23.08%, waiting at 23.05%, inventory at 17.28%. This shows the need for improvement efforts to increase productivity and production efficiency of product X in Pharmaceutical Companies. After carrying out the analysis, suggestions for improvements are given according to the problems that occur, such as creating OPL, checksheets, SMED, and so on. After implementation, it was found that the PCE value had increased to 19.59%, the DPMO value had decreased to 3,341, and the sigma level value had increased to 4.21 sigma.
Co-Authors Albert, Jonathan Andres Aruan, Raditya Pradana Putra Halim, Gabrielle Harnawan, Christianto I Wayan Sukania Karuna, Rio Lina Gozali Lithrone Laricha Salomon Ongan, Freddy Bano Peribadi, Sylvia Angeline Putra, Yohanes Widhiasmara Robin, Christhoper Saryatmo, M Agung Saryatmo, Mohammad Agung Suteja, Ricky Wilson Kosasih Wongkar, Joshua Ricardo