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Ujang Cahyadi
Institut Teknologi Garut
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Perencanaan Pengendalian Polusi Udara pada Lingkungan Kerja KN. Collection Yusuf Mauluddin; Ujang Cahyadi; Mirna Maria
Jurnal Kalibrasi Vol 21 No 2 (2023): Jurnal Kalibrasi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/kalibrasi/v.21-2.1193

Abstract

KN. COLLECTION is a factory that produces skullcaps, located at Kp. By the way, Samarang Garut. In production which involves human labor and the workplace environment, there are dangerous factors that can harm workers' health. One of them is dust in the workplace environment. while in room area 2 (Manual Knitting Machine) it is 150 AQI. The dust content value in these two areas has exceeded the threshold value of 60 AQI. Data collection was carried out using quantitative data collection techniques, namely sampling 30 data, then testing the data for normality using SPSS with the Kolgomorv Smirnov method, the results showed that the data was normally distributed. Based on the control analysis that has been carried out using the FMEA method to find the cause of the air pollution that occurred in the production work room of KN. COLLECTION. In the risk assessment process using FMEA, the assessment components are divided into 3 components, namely Occurrence, Risk Impact and Risk Detection. The research carried out has the aim of obtaining results (output) in the form of proposed improvements that can be implemented by the company to minimize air pollution that occurs in the company. Namely, with the proposal to add an Exhaust Fan from the inside out to regulate the release of dust from inside the room out of the room, to help ensure indoor air circulation remains clean, healthy and fresh. As well as the proposed filter on the machine that emits dust, a drainage channel for the dust is also created, in order to minimize the dust produced by the automatic knitting machine at KN. COLLECTION and creating a clean and comfortable work environment for production.
Optimasi Persediaan Perencanaan dan Pengendalian Biaya Air Minum Kemasan di CV. Dinasti 611 Dody Chandrahadinata; Ujang Cahyadi; Uji Ramdani
Jurnal Kalibrasi Vol 21 No 2 (2023): Jurnal Kalibrasi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/kalibrasi/v.21-2.1253

Abstract

CV Dynasty is a trading company engaged in the distribution of bottled drinking water. The CV Dynasty 611 company collaborates with suppliers to supply bottled drinking water. In carrying out its business processes, this company is often hampered by inventory management. This can be seen from the accumulation of goods and frequent placing of orders with suppliers, as well as problems in fulfilling products to consumers. So a method is needed to solve problems in inventory management and optimize storage and ordering costs and avoid buildup in the warehouse. So the inventory management method was chosen Economic order quantity, silver meal heuristic and Min – max method. These three methods are inventory management methods which are expected to be able to solve problems that occur at the CV Dynasty 611 company. The EOQ method produces an order frequency of 19 times, safety stock of 102 crates, ROP of 118 crates with a total inventory cost of IDR 36,925,824 and inventory cost efficiency of IDR 2,226,976 with an inventory cost efficiency percentage of 6%. Meanwhile, using the silver meal heuristic method produces an ordering frequency of 12 times a year, safety stock 156, ROP 114, total inventory costs IDR 8,881088 with inventory cost efficiency IDR 30,271,712 with a percentage of 77%. Meanwhile, using the min - max method produces an order frequency of 13 times in one year with a safety stock of 102 crates, ROP 114 crates with a total inventory cost of 34,071,456 with an inventory cost efficiency of IDR 5,081,341 with an inventory cost efficiency percentage of 13%. Therefore, it is recommended that companies use the silver meal heuristic method to optimize inventory costs.
PENINGKATAN KUALITAS PELAYANAN DI BENGKEL ALVA JAYA MOTOR MENGGUNAKAN METODE FUZZY SERVQUAL Doddy Chandrahadinata; Dedi Sa’dudin Taptajani; Ujang Cahyadi
Jurnal Akuntansi dan Pajak Vol 23, No 2 (2023): JAP : Vol. 23, No. 2, Agustus 2022 - Januari 2023
Publisher : ITB AAS INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/jap.v23i2.7373

Abstract

Bengkel Alva Jaya Motor merupakan salah satu perusahaan yang bergerak di bidang jasa service sepda motor. Dalam menghadapi persaingannya pihak perusahaan harus dapat memenuhi harapan dari konsumen, supaya konsumen puas dengan pelayanan yang diberikan. Maka penelitian ini bertujuan meningkatkan kualitas pelayanan di Bengkel Alva Jaya Motor menggunakan tools/metode fuzzy servqual. Metode ini membandingkan tingkat persepsi dan harapan yang diterima berdasarkan lima dimensi kualitas yaitu tangibles, responsiveness, reliability, assurance dan emphaty. Data yang digunakan untuk penelitian yaitu data kuisioner dari pelanggan dan data yang didapatkan langsung dengan wawancara pihak perusahaan. Adapun hasil penelitian ini belum sesuai dengan yang diharapkan oleh para pelanggan, dimana pada dimensi tangibles itu sendiri mendapat nilai gap terbesar yang berarti harus dilakukan peningkatan kualitas pelayanan. Juga dalam analisis penelitian ini yang menggunakan metode root cause analysis untuk mengetahui apa penyebab dan solusi yang harus dilakukan.
ANALISIS EFISIENSI KINERJA RANTAI PASOK MENGGUNAKAN METODE DATA ENVELOPMENT ANALYSIS DI CV BLESSING COFFEE Ujang Cahyadi; Muhammad Syauqi Mubarok; Doddy Chandrahadinata
Jurnal Akuntansi dan Pajak Vol 23, No 2 (2023): JAP : Vol. 23, No. 2, Agustus 2022 - Januari 2023
Publisher : ITB AAS INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/jap.v23i2.7374

Abstract

Setiap perusahaan membutuhkan rantai pasok yang efisien dalam memenuhi permintaan konsumen, petani kopi adalah elemen yang sangat penting dalam rantai pasok kopi sebagai pemasok. Jika pemasok yang baik tidak dipilih, semua upaya rantai pasok lainnya akan gagal, Pengukuran efisiensi pemasok kopi perlu dilakukan untuk mengetahui kinerjanya guna untuk meningkatkan daya saing dan mengoptimalkan keuntungan. Blessing Coffe merupakan perusahaan yang bersaing dalam memproduksi kopi terbaik jenis Greenbean dan Roastbean. Penelitian ini bertujuan untuk memetakan rantai pasok, mengetahui nilai efisiensi kinerja rantai pasok, dan strategi perbaikan rantai pasok. Metode yang digunakan untuk mengukur nilai efisiensi ini yaitu menggunakan metode Data Envelopment Analysis (DEA). Hasil penelitian menunjukan bahwa mekanisme rantai pasok yang terjadi yaitu petani mitra sebagai pemasok, Blessing Coffee dan retailer. Terdapat 2 Petani mitra yang memiliki nilai efisiensi dengan kategori tidak efisien yaitu Petani 2 dengan nilai 0,92 dan Petani 3 dengan nilai efisiensi 0.89 sedangkan hasil analisis efisiensi kinerja rantai pasok pada Blessing Coffe memiliki nilai efisien dari semua variabel. Strategi yang digunakan untuk Petani 2 dan Petani 3 yaitu mengurangi nilai input variabel lead time dan cash to cash cycle time dengan menambahkan pegawai baru untuk menambah gerak kinerja dari setiap petani.
Usulan Penerapan Keselamatan Kerja Dengan Menggunakan Metode Fault Tree Analysis (FTA) : Studi Kasus: PT. Sipatex Putri Lestri Ujang Cahyadi; Dedi Sa'dudin Taptajani; Sindi Oktaviany
Jurnal Kalibrasi Vol 24 No 1 (2026): Jurnal Kalibrasi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/kalibrasi/v.24-1.1809

Abstract

PT Sipatex Putri Lestari is a company engaged in weaving, printing, dyeing, texturizing, and yarn dyeing. The company has not yet formally implemented an Occupational Safety and Health Management System (SMK3), which has led to various issues, particularly in the printing division. A prominent issue is the high rate of workplace accidents, occupational illnesses caused by the work environment, and the negative environmental impact of industrial activities. These problems highlight the urgent need for the implementation of Occupational Safety and Health (OSH) measures as a risk mitigation strategy. This study aims to analyze the rate of workplace accidents, the severity of these accidents, and to identify the main contributing factors to workplace accidents at PT Sipatex Putri Lestari. The method used is Fault Tree Analysis (FTA), which helps reveal the root causes of accidents and provides recommendations as the basis for implementing an OSH system.Data analysis from 2021 to 2023 shows an increasing number of workplace accidents in the printing division, with 3, 4, and 6 incidents per year, respectively. The accident frequency rates recorded were 9.65 in 2021, 12.87 in 2022, and 19.30 in 2023, while the severity rates were 157.65, 292.79, and 585.58, respectively. The Total Safe (T Selamat) value also showed a significant increase, from 585.4 in 2022 to 1004.6 in 2023. This data indicates that workplace accidents at PT Sipatex Putri Lestari have been rising each year, making the implementation of OSH practices an urgent necessity to minimize risks and support the sustainability of the company’s operations.
Pengendalian Kualitas Produksi Kain Twill Maxfill Dengan Menggunakan SPC Dan FMEA Dibagian Inspecting PT. Sipatex Elsa Nurhalifah; Ujang Cahyadi; Dedi Sa'dudi Taptajani
Jurnal Kalibrasi Vol 24 No 1 (2026): Jurnal Kalibrasi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/kalibrasi/v.24-1.1844

Abstract

PT Sipatex Putri Lestari is a textile manufacturing company that produces greige fabric through processes including texturizing, sizing, dyeing, printing, coating, and yarn dyeing. The defect rate in the production process, particularly the weft missing defect, still exceeds the predetermined tolerance limits, making quality control necessary. This study aims to analyze the causes of fabric defects, identify the factors contributing to defects, and determine ways to reduce defects in the fabric production process. In addition, this research seeks to identify quality improvement measures to minimize defect levels in the production of twill maxfill fabric. This study employs Statistical Process Control (SPC) and Failure Mode and Effect Analysis (FMEA) methods. The results show that the most dominant defect is the weft missing defect, accounting for 42% of total defects. Furthermore, several factors causing defects were identified using fishbone diagram analysis, including human factors, machine factors, material factors, and method factors. Subsequently, FMEA analysis was conducted to determine priority scales based on the Risk Priority Number (RPN) values. Based on the highest RPN value, it was found that malfunctioning or damaged machine fillers were the main cause of defects. Therefore, the proposed corrective actions include servicing or replacing the machine fillers to ensure that damaged or dirty fillers can be promptly addressed. This is intended to ensure that the resulting products meet high quality standards and to minimize defects during the production stage. In addition, routine and continuous machine cleaning and maintenance, as well as inspections of machine readiness prior to operation, are considered essential. After implementing the proposed improvements for five days, the results indicate that the corrective actions successfully helped minimize defects by repairing the damaged fillers.
Analisis Kelayakan Usaha Belimbing Wuluh Pada Bumbu Masakan Asam Sunti Rhafi Faisal Ramadhan; Ujang Cahyadi
Jurnal Kalibrasi Vol 24 No 1 (2026): Jurnal Kalibrasi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/kalibrasi/v.24-1.2034

Abstract

This study aims to evaluate the business feasibility of designing processed asam sunti products made from belimbing wuluh by analyzing various aspects, namely marketing, technical, financial, legal, and environmental. The research method used is a mixed methods approach, combining qualitative and quantitative approaches, adjusted to the characteristics of each aspect studied. The qualitative approach is used to gain an in-depth understanding of the business context, particularly in marketing and technical aspects such as segmentation strategy, production process, and organizational structure. This approach is descriptive and exploratory to identify potential opportunities and challenges in business development. Meanwhile, the quantitative approach is used to analyze financial feasibility through calculations of production and operational costs, cost of goods manufactured (COGM), payback period, break-even point (BEP), net present value (NPV), and internal rate of return (IRR). The results show that the COGM is IDR 19,662,991, with a profit margin of 40%, resulting in a selling price of IDR 19,663 per package. From a financial feasibility perspective, the payback period is achieved within 2 months and 24 days, and the break-even point can be reached at 130 units sold, with minimum revenue of IDR 2,584,906. Based on these findings, the asam sunti business design is considered feasible to operate, both operationally and financially.
Co-Authors Acep Rahmat Hidayat Dedi Sa'dudi Taptajani Dedi Sa'dudin Taptajani Doddy Chandrahadinata Dody Chandrahadinata Elsa Nurhalifah Encep Jianul Hayat Fahad Fauzan Firdaus Ilham Aji Maulana M Rizal Rosidin M. Zaky Darojat Mirna Maria Muhamad Nurjaman Muhamad Risky Gahara Muhammad Syauqi Mubarok Rhafi Faisal Ramadhan Sindi Oktaviany Uji Ramdani Yusuf Mauluddin