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Ringgo Ismoyo Buwono
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Chemical Engineering, Chemistry & Bioengineering Computer Science & IT

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Perancangan Sistem Ppic Guna Mengoptimalkan Proses Produksi Cetak Cover LKS (Lembar Kerja Siswa) Di CV Madyotomo Thaufik Kurniawan; Febrina Agusti; Ringgo Ismoyo Buwono
Jurnal Rekayasa Proses dan Industri Terapan Vol. 2 No. 2 (2024): Mei: Jurnal Rekayasa Proses dan Industri Terapan ( REPIT )
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/repit.v1i3.358

Abstract

Printing is an industry that is constantly evolving and adapting to changing market demands, as well as an increasing focus on sustainability. CV Madyotomo is a company engaged in the printing sector. When excessive incoming orders cause a buildup of print orders of up to 110% of production capacity, this makes employees often have to do overtime. The purpose of this research is to design a PPIC system that is useful for planning and scheduling production so that the entire production process can run smoothly and employees don't have to work overtime too often. PPIC system design can be done using Forecasting with the moving average method and single exponential smoothing. From this research, the results of the forecasting methods used for each level are different. For elementary school level (Elementary School) using the Moving Average method. For junior high school level (junior high school) using the single exponential smoothing method. For SMA level (High School) using the single exponential smoothing method. For MPS (Master Production Schedule) production, the number of daily print orders that must be fulfilled is 78,095. The proposed overtime with MPS in 9 days totals 36 hours. The difference in the frequency of company overtime with overtime according to MPS is as much as 28 hours, this of course will also affect the expenses for the wages paid, of course it will be less than before.
Peramalan Permintaan dengan Metode Time Series di PT. Margo Mitro Joyo Muhammad Iqbal; Indah Wahyu Utami; Ringgo Ismoyo Buwono
Jurnal Rekayasa Proses dan Industri Terapan Vol. 2 No. 4 (2024): November: Jurnal Rekayasa Proses dan Industri Terapan ( REPIT )
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/repit.v1i3.375

Abstract

Demand forecasting is one of the company's efforts as a basis for making strategic business continuity decisions. The condition of fluctuating demand makes the stock in PT. Margo Mitro Joyo becomes excess or runs out. Based on conditions it is necessary to forecast the demand for LKS. So that stock buildup that occurs at PT.Margo Mitro Joyo can be overcome. From the problems above, the purpose of this research is to find out the number of forecasting requests for Student Worksheets (LKS) in the next period. The analysis was carried out using 2 time series methods , namely weight moving average and single exponential smoothing. So obtained for demand forecasting respectively 971,025.62 and 994,421.12. and then determined by taking into account the smallest error value.
Perancangan Perawatan Mesin Cetak Offset Dengan Pendekatan RCM, (Reliability Centered Maintenance): (Studi Kasus Pada Cv Madyotomo Jawa Tengah) Apif Sofyan; Indah Wahyu Utami; Ringgo Ismoyo Buwono
Jurnal Rekayasa Proses dan Industri Terapan Vol. 2 No. 4 (2024): November: Jurnal Rekayasa Proses dan Industri Terapan ( REPIT )
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/repit.v1i3.378

Abstract

Machines play a crucial role in a production process, highlighting the need for maintenance to ensure their proper functioning. The methods employed include Fault Tree Analysis (FTA), Failure Mode and Effect Analysis (FMEA), and distribution determination. The repair times for each CMYK component are as follows: the bearing component requires 93.541 hours or 4 days, Griver needs 163.235 hours or 7 days, the seal requires 195.349 hours or 9 days, the linner pen needs 248.803 hours or 10 days, and the ink tank needs 260.123 hours or 11 days.
Perancangan Ulang Mesin Spot Welding Menggunakan Metode Benchmarking (Studi Kasus: Bengkel Fabrikasi Logam Dan Manufaktur SMK Negeri 2 Surakarta) Ismail Hakim Asy Syidiq; Febrina Agusti; Ringgo Ismoyo Buwono
Jurnal Rekayasa Proses dan Industri Terapan Vol. 3 No. 1 (2025): Februari: Jurnal Rekayasa Proses dan Industri Terapan ( REPIT )
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/repit.v1i3.422

Abstract

Spot welding is used as a tool to meet the UKK (Skill Competency Test) requirements in the Metal Fabrication and Manufacturing Engineering department at SMK Negeri 2 Surakarta in the form of welding workpieces from iron plates. The results of the welding are non-sticky and perforated iron plates. This research aims to redesign the spot welding machine by adding a TDR (Time Delay Relay) component to regulate the welding time using the benchmarking method. Data collection through interviews and observation. The results of the benchmarking analysis show that spot welding has easier welding specifications, has TDR and automatic switch components, dimensions of 45 x 23 x 15 cm and is capable of welding up to a plate thickness of 1,5 + 1,5 mm. Has a selling price of Rp. 1,200,000,-, so that it is able to compete in the market.
Co-Authors Apif Sofyan Febrina Agusti Indah Wahyu Utami Ismail Hakim Asy Syidiq Muhammad Iqbal Thaufik Kurniawan