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SAINTI: Majalah Ilmiah Teknologi Industri
Published by Politeknik ATI Padang
ISSN : 18297404     EISSN : 26139871     DOI : -
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering
SAINTI: Majalah Ilmiah Teknologi Industri merupakan majalah ilmiah yang diterbitkan oleh unit penelitian dan pengabdian masyarakat Politeknik ATI Padang. Jurnal SAINTI terbit secara berkala yakni persemesteran atau 2 kali dalam 1 tahun yaitu pada bulan Juni dan Desember. Jurnal SAINTI mempublikasikan hasil karya ilmiah dan pemikiran Dosen dan Civitas Akademika serta praktisi industri
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 128 Documents
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STRATEGI PEMILIHAN SUPPLIER YANG TEPAT PADA INDUSTRI PULP & PAPER Kaidah, Sri; Purnamasari, Mega
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 19, No 1 (2022): VOL 19 NO 1 JUNI 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v19i1.290

Abstract

One of the pulp & paper industries in Banten differentiates between several suppliers based on fixed contract cooperation for main raw materials and irregular contracts for supporting raw materials. Cooperation with variable contracts often causes problems such as delays in delivery, product specifications and quantities of goods that do not match the ones ordered. This is because companies in selecting suppliers for non-fixed contracts still use conventional selection methods by determining criteria based only on price and quality of goods, but not based on consideration of other criteria or those that suit the company's needs. This often interferes with the progress of production process activities. The Analytical Hierarchy Process (AHP) method is used to solve problems that occur as a strategy to determine the right criteria and suppliers. From the results of the analysis carried out using the Analytical Hierarchy Process (AHP) method, it was found that the priority value of the Price criterion is 0.18; Shipping is 0.41; Quality is 0.28; and Responsiveness is 0.13. From the results of comparative weighting at the hierarchy level of the criteria, it was found that the highest priority value was on the delivery criteria of 0.41. With the best supplier is PT. A that gets a weighted value of 0.41; while the other two suppliers are PT. B receives a weighted value of 0.36 and PT. C of 0.22.
OPTIMALISASI HALAMAN LANDING PAGE UNTUK INDUSTRI FURNITUR: SEBUAH STUDI KASUS MENGGUNAKAN GT METRIX Broto, Taukhid Wisnu; Ulfia, Yessi Nasia; Arini, Nuskha Ilma
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 21, No 2 (2024): VOL 21 NO 2 DESEMBER 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v21i2.281

Abstract

The furniture industry faces challenges in marketing its products online, especially due to the limitations of providing customers with a physical product experience. This makes the Landing page a crucial element in digital marketing strategies, which not only needs to be aesthetically appealing but also technically optimized to enhance user engagement and sales conversion. This study aims to identify the factors affecting page load speed and performance of the Landing page, as well as to implement optimization strategies to improve efficiency and user experience. The methods used include literature reviews, direct observation, and technical testing and optimization using the GTMetrix tool. The results show that after technical optimizations, the Landing page performance improved by 8%, page structure increased by 5%, Largest Contentful Paint (LCP) decreased by 0.1 seconds, Total Blocking Time (TBT) reduced by 3 milliseconds, and Cumulative Layout Shift (CLS) decreased by 0.12. In addition, the page performance grade increased from B to A. The conclusion of this study emphasizes the importance of integrating attractive design and high technical performance to achieve an optimal Landing page in the furniture industry, supporting improved user engagement and sales conversion.
KARAKTERISASI PATI DARI BATANG KELAPA SAWIT YANG TELAH TIDAK PRODUKTIF Hidayani, Tengku Rachmi
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 14, No 2 (2017): VOL 14 NO 2 DESEMBER 2017
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v14i2.269

Abstract

Research on the extraction of starch from unproductive palm oil rods to utilize unproductive palm oil waste into useful materials. This study consists of three stages. The first stage is making sample preparation. The second stage is the process of starch extraction. The last stage is the characterization of starch from the oil palm rod obtained. The characterization of starch yield obtained was analyzed by functional group with FTIR test and thermal characteristic analysis by DTA test. The results showed that the starch of the palm oil rods produced has a good character where the FTIR results show the specific groups for starch and DTA results according to the decomposition point of starch that is at the temperature of 408oC.
PENGURANGAN KADAR KLORIDA DALAM PEMBENTUKAN 3-MCPD MELALUI PROSES CPO WASHING DI UNIT REFINERY INDUSTRI MINYAK GORENG Putra, Ilham Adijas; Ulia, Hasnah
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 18, No 2 (2021): VOL 18 NO 2 DESEMBER 2021
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v18i2.305

Abstract

The effectiveness of washing crude palm oil (CPO) with demineralized water at 90 ºC in reducing chloride levels, a key precursor to the formation of carcinogenic 3-MCPD esters, has been evaluated. The washing process, carried out with a capacity of ±50 tons/hour and a 6% water dosage, resulted in a 60% reduction in chloride levels, with a maximum reduction of 75.3% observed on the first day of experimentation. Variability in chloride reduction was influenced by the quality of raw materials and storage methods. However, organic chloride, which is covalently bonded to CPO molecules, could not be removed by this process. The findings indicate the need for additional methods to address organic chloride and improve contaminant removal efficiency in palm oil production.
OPTIMASI COATING PUPUK UREA PRILL DENGAN POLIURETAN SEBAGAI APLIKASI CRF (CONTROLLED RELEASE FERTILIZER) Suciati, Dwimaryam; Septiana, Yuli Amitha
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 21, No 1 (2024): VOL 21 NO 1 JUNI 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v21i1.255

Abstract

Urea fertilizer in prill form is widely used for the food crop and industrial segments due to its high nitrogen content, easy solubility in water, and hygroscopic nature, making it suitable as a CRF (Controlled Release Fertilizer). CRF is a type of fertilizer that releases nutrients, specifically nitrogen, gradually and periodically, closely matching the absorption pattern of plants, ensuring that the nutrients are not washed away by water and are effectively utilized. In this study, CRF was made by coating urea with polyurethane using the pouring method. The optimum condition of the CRF was determined by testing the total nitrogen content using the Kjeldahl method and measuring the crushing strength. The optimum value was obtained with variable 2 (urea: coating agent at 98%: 2%) with a total nitrogen content of 45.5% and a crushing strength of 0.9 KgF.
PENENTUAN WAKTU PREVENTIVE MAINTENANCE DAN REABILITY MESIN WIRE MESH MENGGUNAKAN METODE NOMOGRAPH Kaidah, Sri; Fernanda, Andika
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 17, No 1 (2020): VOL 17 NO 1 JUNI 2020
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v17i1.296

Abstract

One of the things that support the smooth operation of a company is the readiness of production machines to carry out their duties. Machines are production tools formed from a series of complex systems, so they require unique and adequate maintenance planning and management. One of the industries that produce steel and wire has problems with maintenance management and supervision of its machines, such as wire mesh. machine based on the results of observation, wire machine mesh is a machine that has a high usage time. In addition, part damage is found on wire mesh machines in large quantities. So the time for Preventive Maintenance and Reliability of the Wire Mesh Machine will be determined as an improvement effort using the Nomograph method. Results above, it can be concluded that the Wire Mesh 01 machine must undergo extensive maintenance, the optimal preventive maintenance value obtained is 9.6 hours, the reliability value using periodic maintenance every 9.6 hours is 85%. One of the things that supports the smooth operation of a company is the readiness of production machines to perform their tasks. Machines are production tools formed from a series of complex systems, so they require unique and adequate maintenance planning and management. One of the industries that produce steel and wire has problems with maintenance management and supervision of its machines, such as wire mesh. machine based on the results of observation, wire machine mesh is a machine that has a high usage time. In addition, part damage is found on wire mesh machines in large quantities. So the time for Preventive Maintenance and Reliability of the Wire Mesh Machine will be determined as an improvement effort using the Nomograph method. Based on the calculation results above, it can be concluded that the Wire Mesh 01 machine must undergo extensive maintenance, the optimal preventive maintenance value obtained is 9.6 hours, the reliability value using periodic maintenance every 9.6 hours is 85%.
PENGARUH WAKTU PERENDAMAN Ca(OH)2 DAN KONSENTRASI GULA TERHADAP KARAKTERISTIK JELLY CANDY BUAH PALA Adinda, Sekar; Fahrizal, Fahrizal; Hasni, Dian
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 21, No 1 (2024): VOL 21 NO 1 JUNI 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v21i1.275

Abstract

This research aims to see the effect of soaking nutmeg in a solution of whiting (Ca(OH)2) and the added sugar concentration on the characteristics of the jelly candy produced. This study used a factorial randomized block design (RAK) with 2 factors, namely the duration of soaking nutmeg flesh with lime solution (L) and sugar concentration (K). Factor 1, namely the duration of soaking with lime solution (L), consists of 3 levels, namely L1 (12 hours), L2 (24 hours), and L3 (36 hours). Factor 2, namely sugar concentration (K), consists of 3 levels, namely K1 60%, K2 80%, and K3 100% of the weight of nutmeg flesh. The results of the study showed that the duration of soaking in lime solution had a very significant effect on the water content, pH, reducing sugar, and astringent taste of the resulting nutmeg jelly candy. Sugar concentration has a very significant effect on reducing the soft texture of nutmeg jelly candy produced. The interaction of soaking time in lime solution and sugar concentration has a very significant effect on water content, reducing sugar, astringent taste, sweet taste, and soft texture of nutmeg jelly candy produced. Based on organoleptic value, the best treatment based on the ranking method, nutmeg fruit flesh soaked in lime solution for 12 hours and 100% sugar concentration (L1K3), is the best combination of treatments in making nutmeg jelly candy, which produces jelly candy with a water content of 21.90%, an ash content of 1.66%, pH 5.17, reducing sugar to 20.49%, and an and an organoleptic color (opaque appearance). 3.68 (neutral), shiny appearance 3.67 (neutral) aroma 3.67 (neutral), sweet taste 4.48 (neutral) astringent taste 4.68 (rather strong) soft texture 2.57 (rather weak) and chewy texture 3.58 (neutral).
PENGARUH LEVEL INTERPHASE TERHADAP NILAI SPLITTING DEGREE DAN YIELD PRODUKSI PADA PROSES HIDROLISIS PADA COLUMN SPLITTING Ramadhan, Aldi Dwi; Luthfi, Muhammad Zulfikar
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 17, No 2 (2020): VOL 17 NO 2 DESEMBER 2020
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v17i2.310

Abstract

A company in North Sumatra is engaged in the processing of palm oil into fatty acid and glycerin. In the current industrial process, crude palm oil is hydrolyzed into fatty acids and glycerol at a temperature of 250°C and a pressure of 53 bar for 7-8 hours in a splitting column. The success rate of the hydrolysis reaction is measured by the splitting degree, where a higher splitting degree indicates a more complete hydrolysis reaction. A common issue is that the acid value and saponification value in the splitting process are not optimal due to factors such as the height of the interphase level. The acid value and saponification value are crucial in determining the splitting degree. Therefore, it is necessary to analyze the impact of the interphase level on the splitting degree and the yield of the hydrolysis process in the splitting column. The results indicate that the efficient interphase level for the fat splitting hydrolysis process is at 3 oil = 4.2 meters (Point 0).
PERBANDINGAN PENENTUAN BILANGAN IODIN PALM OIL DENGAN DAN TANPA KATALIS NATRIUM ASETAT Elizarni, Elizarni; Nurlan, Nurlan
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 14, No 2 (2017): VOL 14 NO 2 DESEMBER 2017
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v14i2.265

Abstract

Iodine value is the number of grams of Iodide absorbed by 100 grams of oil, is one of the quality standards of palm oil. Determination of Iodine value is done by titration of iodometri (Wi's method) with or without Sodium Acetate solution catalyst. The addition of a catalyst for the acceleration of the reaction so that the analysis time is more efficient. The test sample consisted of RBDPO, RBDPS, Cooking Oil IV 56, Cooking Oil IV 57, Cooking Oil IV 58, Cooking Oil IV 59, Cooking Oil IV 60. Results of Iodine Numeral analysis with and without catalyst for RBDPO samples were 52.24 and 52.35, RBDPS samples were 33.18 and 33.24, Cooking Oil IV 56 samples were 56.02 and 56.09, Cooking Oil IV 57 samples were 57.28 and 57.34, Cooking Oil IV 58 samples of 58.00 and 58.10, Cooking Oil sample 59 that is 59.17 and 59.21, sample of Cooking Oil IV 60 that is 60.42 and 60.46. The test results of each sample showed no significant differences with standard iodine numbers. T Test is performed for determination of data acquisition of Iodine number acceptable or not. T test result of Iodine number using catalyst and without catalyst of RBDPO sample obtained t0<ttable that is 1.947<2.015 and sample RBDPS 1.924<2.015 so that method obtained can be accepted (valid).
ANALISIS POTENSIAL BAHAYA DAN RISIKO KECELAKAAN KERJA DENGAN MENGGUNAKAN METODE FAILURE MODE AND EFFECT ANALYSIS Kaidah, Sri; Prasojo, Wahyu Hari; Prasetio, Muhammad Ari; Sitorus, Tosty Maylangi
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 21, No 2 (2024): VOL 21 NO 2 DESEMBER 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v21i2.313

Abstract

Every workplace has a risk of occupational accidents. A work accident is an unplanned and uncontrollable event caused by human factors, the Environment, machines or a combination of the three occurring during the work process that is likely to cause injury, property damage and death or other undesirable events. Work accidents that occur always bring losses such as a decrease in the company's productivity because employees cannot work optimally, loss of manpower and of course reduce the company's profits. This research aims to analyze the order of priority for handling potential hazardous hazards that result in work accidents, analyze high-risk processes/activities that result in work accidents, and analyze control recommendations for potential hazards that have the risk of resulting in work accidents. The analysis method that will be used is the failure mode effect analysis (FMEA) method. The results of the study show that the potential danger of exposure to hot temperatures (melting process) has an RPN value of 297.7 so that the most risky production process is the process of forming or molding raw materials. The priority order of handling potential hazards from the glass bottle production process is exposure to hot temperatures, noise, exposure to glass bottle fragments, suffocation and being pinched by machines/conveyors. The controls that must be carried out are providing fans, providing insulation and shields, and providing drinking water so that the operator does not suffer from dehydration.

Page 12 of 13 | Total Record : 128

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