http://journal.univgresik.ac.id/index.php/j-mesin <div class="flex-1 overflow-hidden"> <div class="react-scroll-to-bottom--css-hyrps-79elbk h-full dark:bg-gray-800"> <div class="react-scroll-to-bottom--css-hyrps-1n7m0yu"> <div class="flex flex-col text-sm dark:bg-gray-800"> <div class="group w-full text-token-text-primary border-b border-black/10 dark:border-gray-900/50 bg-gray-50 dark:bg-[#444654]" data-testid="conversation-turn-5"> <div class="p-4 justify-center text-base md:gap-6 md:py-6 m-auto"> <div class="flex flex-1 gap-4 text-base mx-auto md:gap-6 md:max-w-2xl lg:max-w-[38rem] xl:max-w-3xl }"> <div class="relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]"> <div class="flex flex-grow flex-col gap-3 max-w-full"> <div class="min-h-[20px] flex flex-col items-start gap-3 overflow-x-auto whitespace-pre-wrap break-words"> <div class="markdown prose w-full break-words dark:prose-invert light"> <p><a class="is_text" href="https://journal.univgresik.ac.id/index.php/j-mesin/index">Jurnal Teknologi dan Ilmiah Teknik Mesin (JTITM)</a>: is an open-access journal that has undergone peer review. Its primary objective is to disseminate the latest and original articles from academics, researchers, and practitioners in the field of Mechanical Engineering. This journal is published four times a year, in <strong>July</strong> and <strong>December</strong>, by the Faculty of Engineering at Universitas Gresik.</p> <p>e-ISSN Number: <a href="https://issn.brin.go.id/terbit/detail/20230830331442857" target="_blank" rel="noopener">3025-6127</a></p> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> Fakultas Teknik Universitas Gresik en-US Jurnal Teknologi dan Ilmiah Teknik Mesin (JTITM) 3025-6127 http://journal.univgresik.ac.id/index.php/j-mesin/article/view/516 <ol> <li>Scissor lift Genie GS-1930 E-DRIVE merupakan peralatan esensial yang banyak digunakan di berbagai sektor industri, dengan sistem hidroliknya menjadi komponen krusial bagi kinerja dan keandalannya. Kualitas oli hidrolik sangat memengaruhi performa sistem, dan kontaminasi oli menjadi penyebab utama kegagalan komponen, penurunan efisiensi, serta peningkatan biaya pemeliharaan. Studi literatur ini bertujuan untuk menganalisis secara komprehensif tingkat kontaminasi oli pada sistem hidrolik Scissor Lift Genie GS-1930 E-DRIVE berdasarkan data dan temuan dari berbagai publikasi ilmiah dan standar industri terkini. Tinjauan ini akan mencakup identifikasi jenis-jenis kontaminan, sumber-sumbernya, dampak yang ditimbulkan pada sistem hidrolik, serta metode analisis dan strategi penanganan kontaminasi yang direkomendasikan. Hasil sintesis literatur ini diharapkan dapat memberikan pemahaman mendalam tentang isu kontaminasi oli pada unit Genie GS-1930, serta menjadi dasar rekomendasi praktik perawatan oli yang optimal.</li> </ol> Achmad Haqqul Yaqin Copyright (c) 2025 Jurnal Teknologi dan Ilmiah Teknik Mesin (JTITM) 2025-12-31 2025-12-31 3 2 http://journal.univgresik.ac.id/index.php/j-mesin/article/view/567 <p><em>This study aims to analyze the effect of impeller modification on the performance efficiency of the Shimizu PS 130BT water pump using the Design of Experiment (DoE) approach. The impeller was modified by altering the blade shape and blade count to obtain various fluid flow characteristics. The DoE method was applied to identify the optimal design combination by testing parameters such as flow rate, total head, motor power, and pump efficiency. The results indicate that impeller geometry modifications significantly enhance the pump’s efficiency compared to the original manufacturer design. This research is expected to serve as a reference for developing more energy-efficient and optimal pump designs for domestic and small-scale industrial applications.</em></p> <p><strong><em>&nbsp;</em></strong></p> <p><strong><em>Keywords:</em></strong><em>Impeller modification, pump efficiency, Shimizu PS 130BT, Design of Experiment&nbsp;(DoE).</em></p> <p>&nbsp;</p> AHMAD NUR HIDAYAT UNIVERSITAS GRESIK Copyright (c) 2025 Jurnal Teknologi dan Ilmiah Teknik Mesin (JTITM) 2025-08-04 2025-08-04 3 2