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All Journal Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science TEKMAPRO Journal of Industrial Engineering and Management Teknik dan Ilmu Komputer Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Accounting and Management Journal Prosiding Seminar Nasional Program Pengabdian Masyarakat JURNAL INOVASI TEKNIK INDUSTRI Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)

Mokh. Suef

Departement Of Business And Management Technology, Institut Teknologi Sepuluh Nopember

Author-ID : 388416

Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Product Quality Improvement in the Assembly Process of the 5.56 mm Ammunitions (Variant MU5-TJ) at PT.X Using the Six Sigma Method Ratna Sari Trisna Wardani; Mokhamad Suef
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11196

Quality is one of the essential indicators for companies to exist amid strong competition. The 5.56 mm ammunition, especially variant MU5-TJ, is the primary commodity of PT. X. The process in ammunition production includes making cartridge cases, making bullets, making primers, and assembling ammunitions. The highest cost of defective products is led by defects in the preparation of the 5.56 mm ammunition, reaching 32.3%. In the process of preparing this kind of ammunition, most of the defects came from variant MU5-TJ, which accounted for 64%. This study aimed to improve the quality of the MU5-TJ ammunition preparation process by increasing its level of sigma. The method used in this study was the Six Sigma method through the Define, Measure, Analyze, Improve, and Control (DMAIC) phases. The quality identification results showed that the weighing and gauging process was the most contributing factor to the defects in the preparation of MU5-TJ ammunitions. The main defect found was the improper weight of the munitions due to the underfilling of propellant powder. The results of the chi-square test showed that the defect-causing factors with significant effects included the presence of sensor filling, varnish composition, tool material, and inspection methods. To reduce the defects, further improvements were made by installing the filling sensor on the ammunition assembly machine, changing the composition of the cartridge case mouth varnish, the use of tools made of hartmetall, and auto-control by the operator every 15 minutes. The results of the implementation of the improvements made resulted in an increase in sigma level from 3.69 to 3.79.

Waste Reduction in Electrical Production Process in PT Petrokimia Gresik Coal Utility Using Value Stream Mapping and FMEA Applications Rosyid Ridlo; Mokh. Suef
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11075

Unit Utilitas Batu Bara (UBB) is one of the power plants owned by PT Petrokimia Gresik which began operating in 2010. UBB consists of a steam boiler with a capacity of 2x150 tons per hour and a power plant with a capacity of 25 megawatt. There is waste in the electricity production process at UBB which is indicated by the value of actual efficiency is low compared to the value of efficiency in the design and performance test. This research discusses efforts to reduce waste in the process of steam and electricity production in UBB by making value stream mapping, identifying waste, conducting root cause analysis, and making FMEA. Through data collection and processing, interviews with expert employees at UBB, as well as comparing reference activities and actual activities, obtained that waste occurs in coal out from coal mill, boiler water, and boiler efficiency. Through analysis 5 whys, obtained fifteen root causes of waste. Through the calculation of events, severity, and detection the risk priority number is obtained. Based on the existing critical risks, through the collection of FMEA worksheets, an estimate of actions to reduce waste that occurred at UBB was obtained. The results showed that all total waste obtained was Rp. 126,364,598.13 / day in UBB. By asking for alternative improvements, a potential savings value of Rp.74,436,596 / day is obtained.

Mitigation of Fire Risk Using HIRARC Method in a Flexible Plastic Printing Company Rabbani Arieza Satya Yoga; Mokh. Suef; Indung Sudarso
IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT)
Publisher : Institut Teknologi Sepuluh Nopember

Fires are incidents and must be considered in all types of industrial production activities. In the last 2 years there were some incidence of fires on PT. XYZ, plastic printing company, 6 cases of small fires and 3 cases of large fires. The fire incident caused big losses, machine stopfor a long time and paId the employees fee who kept coming to work when the machine was being repaired. Main objective of this research is how to prevent fires and its causes and how to mitigate the fireusing the HIRARC method. The researchwas carried out in three main stages: The hazard identification stage, The risk assessment stage, and The risk control.The risk control was carried out based on 5 hierarchical risk control analysisto minimize the high risk of fire that can disrupt production activities in the company. The result of focusgroup discussion, the main cause of fire incident is the static electricity. Due to routine maintenance of the machines that currently have not been maximized, a maintenance strategy have been developed and inserted into the company risk management system

Quality Improvement of Instrument Transformer Using Taguchi Experiment Method in PT. XYZ Ziyaurrohman Alladany; Mokh. Suef
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11109

Up to this year, PT. XYZ has been experienced of increasing sales of instrument transformer products, along with increasing consumer demand. Quality is the most important thing in the manufacturing product. But on the production floor of PT. XYZ faces quality problems. Based on the 2018 production report from January to December the number of defective products is more than 2 %. The high defective products indicate that there needs to be an improvement in the production process as a form of effort to improve quality on an ongoing basis. However, to achieve these objectives the company must know which control factors have an effect on improving the quality of the product. This research is intended to assist companies in solving problems of multiresponse cases that occur in the case of instrumentation transformer defect products, it will be analyzed using Taguchi Experiment combined with the PCR- TOPSIS method to improve product quality. Based on the results of this research, the results obtained that using the PCR-TOPSIS method optimum conditions can be achieved in the oven temperature control factor 110°C, oven time 240 minutes, mixing temperature 60°C, mixing time 130 minutes, clamping pressure 3 bars, and time clamping 20 minutes. By using the optimum treatment settings can be achieved quality improvement in each response with the characteristics of the quality is larger is better, where the increase in power frequency response increases by 11.11% and the response of partial discharge increases by 39.17%.

Improving the Quality of Palm Oil NPK Fertilizer Products at PT.XYZ Using Statistical Process Control Methods and Taguchi Experiment Hariono Hariono; Mokh. Suef
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11082

Quality palm oil NPK fertilizer products are fertilizer products that meet the quality requirements specified in SNI Standard 2801: 2010 and SIRIM Standards. This research was conducted with the aim to improve the quality of oil palm NPK fertilizer products at PT. XYZ. To maintain the stability of nutrients, the production process must be strictly considered with the aim of minimizing product variations. To achieve these objectives the production process control system is designed using Statistical Process Control. Then a process is designed to produce a robust product using the Taguchi experiment. Taguchi experiment obtained the results of the optimization of the process parameter level settings in combination as follows: raw material intake 27 mt / hour; water usage 1100 m3 / hour; gas usage 100 MMBtu; material temperature granulator 52°C; dryer material temperature 52°C; cooler material temperature of 44°C; finish product temperature 39°C; process environment temperature of 31°C. From the results of ANOVA for each nutrient showed that the highest levels of nutrient N were obtained from the finish product temperature 38°C; the highest P2O5 nutrient content is obtained from the variable water usage of 1000 m3 / hour; the highest K2O nutrient content is obtained from the variable water usage of 1100 m3 / hour; the highest MgO nutrient content is obtained from the variable gas usage of 90 MMBtu; The highest levels of B2O3 nutrients are obtained from the variable water usage of 1100 m3/hour and the best physical size of the granules is obtained from the variable cooler material temperature of 42oC. The results of this study can reduce as much as possible complaints from customers because the product meets the quality standard specifications required.

Evaluation and Mitigation of Android Application in PT. Aku Pintar Indonesia Lutvianto Pebri Handoko; Mokh. Suef
IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT)
Publisher : Institut Teknologi Sepuluh Nopember

Aku Pintar Indonesia enterprise is one of the educational start-up industries currently developing an Android-based system. System errors could appear in various both the features and administrative processes. The system repair priority could be given to the easiest system error first without taking into account the risk that would arise. The company needed to change its risk management by providing the priority of system repair and considering the effects and frequency of the occurrences. This research aims to help Aku Pintar Indonesia enterprise in choosing the priority of system error repair in order to improve their services to their users. This research used FMEA which allows the risk level of each error modes being assessed. System errors and its frequency were identified by web-based Google Play Console. The disadvantage level appeared from each errors determined by utilizing expert judgment in a Focus Group Discussion (FGD). The risk level of each system errors determined by the frequency of each and the level of the disadvantages, then measure the value of the Risk Priority Number by multiplying the results of severity and occurrence so that the risk value is obtained. The next process of risk mapping based on the risk level uses a modification of the risk mapping table to obtain the error rate for making priority improvements. This research produced a complete document that contains the information needed to plan and prevent repetitive errors, and can reduce the initial system error rate by 4% to 2.4% according to reports from the Google Play Console system

Visitors Needs Analysis in Mall XYZ with Text Mining Analysis Faurizal Limansyah; Mokh. Suef; Vita Ratnasari
IPTEK Journal of Proceedings Series No 1 (2020): The 1st International Conference on Business and Engineering Management (IConBEM)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i1.11321

Mall is a shopping center consisting of the main tenants (anchors), retail, shops, services, and public facilities that are built, managed, and arranged by the manager with the aim of conducting interaction between visitors and sellers. In 2018 Surabaya City had 33 malls or 50.77% of the total number of malls in East Java, this shows that the mall population in Surabaya City is very high. Mall XYZ is one of the malls that stood in the city of Surabaya and has been operating for one year. This mall still has not shown a development that is not optimal because of the many complaints from tenants to building management related to the sale of products that do not reach the target, as a result tenants often violate the rules (house rules) that have been set by managers to break the cooperation contract between building management and tenants unilaterally . To find out the cause of these conditions, text mining methods are used to filter reviews from visitors filtered from the Mall XYZ Google page. of the existing reviews classification will be based on reviews that contain positive and negative sentiment. review with positive sentiment becomes an appreciation that must be maintained and improved while a review containing negative sentiment becomes a complaint that must be addressed by the building management as the mall manager.

PENINGKATAN DAYA SAING USAHA KECIL TEMPE KEDIRI DENGAN KAIZEN Putu Dana Karningsih; Mokh Suef; Rindi Kusumawardani; Dewanti Anggrahini; Yudha Prasetyawan; Novi Dwi Jayanti; Hari Supriyanto; Benhard Panangian; Rizaldy Rizki Pratama; Atmam Abdha Arianandha; Fauziyah Fatma Ningrum; Yusita Mega Kuncoro; Sherina Amalia Permatasari
Prosiding Seminar Nasional Program Pengabdian Masyarakat 2020: 3. Kapasitas Daya Saing UMKM dan BUMDES
Publisher : Universitas Muhammadiyah Yogyakarta

Tempe merupakan makanan tradisional masyarakat Indonesia yang sarat protein, vitamin dan jugamineral. Masyarakat Jawa Timur merupakan konsumen tempe terbesar di Indonesia. Dengan potensipasar yang sedemikian besar, maka Usaha Kecil Tempe di Jawa Timur harus dapat memperbaiki prosesterus menerus agar dapat memenuhi kebutuhan pasar baik secara kuantitas maupun kualitas. Studi inibertujuan untuk memberikan rekomendasi kepada sebuah Usaha Kecil Tempe di Kediri untuk dapatmeningkatkan kuantitas produksi dengan cara menghilangkan atau mereduksi kegiatan yang tidak bernilaitambah. Saat ini, proses produksi tempe masih dilakukan secara manual tanpa memperhatikan aliranproses. Untuk itu, diusulkan perbaikan dengan menggunakan prinsip Kaizen yang bertujuan untukmelakukan perbaikan secara bertahap dan berkelanjutan. Usulan perbaikan adalah berupa perubahan tataletak proses produksi dan aplikasi prinsip karakuri pada proses produksinya. Dengan implementasirekomendasi maka diprediksi dapat meningkatkan kapasitas produksi tempe, dimana waktu produksimenjadi lebih singkat kurang lebih 20%.

EVALUASI KONSEP PRODUK DENGAN PENDEKATAN GREEN QUALITY FUNCTION DEPLOYMENT II Septin Puji Astuti; Udisubakti Ciptomulyono; Mokh. Suef
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 6 No. 2 (2004): DECEMBER 2004
Publisher : Institute of Research and Community Outreach - Petra Christian University

The population of green consumer have been increasing enormously over last few decades. Hence, many managers prefer to reduce or to avoid environmental impact that may arise from their industrial activity, including product design and development. Regarding that phenomenon, this paper describes the Green Quality Function Deployment (QFD) II method that is utilized to evaluate the concept of lamp. The Green QFD II integrates quality, environmental, and cost aspects into Concept Comparison House (CCH). Weight of each aspects has been determined by utilizing the Analitic Hierarchy Process (AHP) method. The best product and it characteristics are presented at the las section of this paper. Abstract in Bahasa Indonesia : Semakin berkembangnya green consumer menyebabkan banyak industri yang mulai memikirkan masalah lingkungan dalam setiap aktifitasnya, seperti halnya dalam proses perancangan dan pengembangan produk. Pada artikel ini akan dibahas metode Green Quality Function Deployment (QFD) II yang diterapkan untuk mengevaluasi konsep produk lampu. Metode ini tidak hanya mempertimbangkan aspek kualitas tetapi juga memperhatikan aspek lingkungan dan biaya ke dalam matriks-matriksnya. Ketiga aspek tersebut masing-masing dijabarkan dalam Quality House, Green House, dan Cost House. Untuk memberi bobot pada tiap aspek, pada penelitian ini digunakan metode Analitic Hierarchy Process. Pada Green QFD II ini, untuk mengevaluasi konsep produk digunakan matriks Concept Comparison House (CCH) yang mampu mengintegrasikan aspek kualitas, lingkungan, dan biaya. Hasil dari penelitian ini adalah diperoleh konsep lampu terbaik dan karakteristik lampu yang berkualitas, ramah lingkungan, dan biaya rendah. Kata kunci: Green QFD II, Multicriteria analysis, Environmental manufactur, green design, sustainable development.

Combination of BLOCPLAN Algorithm, HIRARC Analysis, and Arena Simulation for Design of Transportation and Heavy Vehicles Facilities Anityasari, Maria; Loverinca Millenia, Vira; Aulia Akbar, Reza; Yuanus, Franki; Suef, Mokh
Tekmapro Vol. 20 No. 1 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Purpose – The study presented in this paper reports on a pilot implementation of scientific management principles in addressing city government facility problems across divisions. To pursue more effective and efficient results, the Tambaksari site that serves various Surabaya Department of Water Resources and Highway Development (SubDRD) tasks, including welding, storage, repair, drainage work, refueling, and security, covering a 15,457 m2 area is evaluated and improved using facility layout, occupational health and safety, and simulation methods. Existing facilities lack grouping based on activities, resulting in inefficiencies. The site poses potential hazards, such as oil spills and hazardous welding practices. This research seeks to optimize facility layout by implementing occupational health and safety standards for effective, efficient activities, and appropriate control systems. Methodology – This research identifies facility needs, sizes, and proximity relationships using the BLOCPLAN algorithm. Hazard management employs the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method, identifying hazards through Process Hazard Analysis (PHA) and assessing risk levels with Failure Mode and Effect Analysis (FMEA). Control system planning, based on the hierarchy of control, is integrated into facility layout design. Stakeholder feedback is gathered through a Focus Group Discussion (FGD) to refine alternative designs. Arena software simulation assesses workstation utility, guiding adjustments for optimization. Findings – The combination of the BLOCPLAN algorithm, HIRARC analysis, and Arena simulation resulted in an estimated design layout that can reduce total out of direction travel distance by 47.32%, backtracking by 43.31%, and cross-movement by 47.37%. Research Limitations – Despite the practical implications involve shaping a more effective Tambaksari layout for SubDRD operations, potentially improving work productivity, creating a safer work environment, and enhancing maintenance service quality for Surabaya City Government infrastructure, the occupational health and safety aspects in this research are only considered concerning their influence on layout design and the simulations only target the workshop activities. Originality – This study is original in the scope of Indonesian city government work that rarely implementing scientific management methods in addressing their problems and challenges. In addition, this study provides integrated analysis across divisions in city government which are usually very rigid and limited by bureaucracy.

Co-Authors Angreni, Endah Angreni, Endah Annisa Dewi Akbari, Annisa Dewi Anugrah, Gede Bayu Atmam Abdha Arianandha Aulia Akbar, Reza Azizah, Farras Rahardini Benhard Panangian Dewanti Anggrahini Dharmawan, Doni Ardhi Farony, Rivan Faurizal Limansyah Fauziyah Fatma Ningrum Febrianto, Anggi Handiwibowo, Gogor Arif Harahap, Elfira Febriani Hari Supriyanto Hariono Hariono Indung Sudarso Kurniati, Nani Loverinca Millenia, Vira Lucky, Novryan Lutvianto Pebri Handoko Maria Anityasari Novi Dwi Jayanti Pribadi, Henry Putu Dana Karningsih Rabbani Arieza Satya Yoga Ratna Sari Trisna Wardani Rindi Kusumawardani Rizaldy Rizki Pratama Rochmansyah, Wahyu Ronald Sukwadi Rosdianto, Moch Afif Rosdianto, Moch Afif Rosyid Ridlo Saiful Hakim, Muhammad Santoso, Bagus Jati Septin Puji Astuti Sherina Amalia Permatasari Sukma Setia Risnatha, I Gede Tommy Anandra Sunardi Udisubakti Ciptomulyono Vita Ratnasari Widawati, Enny Winoto, Maria Nicolas Ganden Gondho Yojana, Ratna Mira Yuanus, Franki Yudha Prasetyawan Yusita Mega Kuncoro Ziyaurrohman Alladany

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