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All Journal SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Jurnal Teknik Mesin Indonesia
Yulia Widhianti
Sekolah Tinggi Teknologi Duta Bangsa
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemistry Computer Science & IT Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisa Kekuatan Dan Getaran Overhead Crane 10 Ton Double Girder Dengan Bentangan 17 Meter Proses Material Handling Yulia Widhianti; Alfian Saputra
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol 12 No 2 (2022): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v12i2.3616

Abstract

Dalam perancangan overhead traveling crane dengan kapasitas angkat 10 ton. Sebagai acuan untuk merancang dan menganalisa bagian-bagian crane seperti girder, end carriage, tali baja, kait, dan motor, perancang harus mengtahui beberapa hal diantaranya: panjang bentangan crane, tinggi angkat beban, keadaan lokasi, defleksi yang di ijinkan, penambahan beban karena karena dipengaruhi faktor overload dan keadaan dinamis, dan safety factor yang digunakan. Hasil dari perancangan Overhead Travelling Crane dengan kapasitas angkat10 Ton adalah; Struktur yang digunakan atau Gider dan end carriage menggunakan welded box profile, Tali baja yang dibutuhkan adalah tipe 6x36 Warington seale + 1 fiber core, dengan umur tali baja samapai 10.3 bulan. Puli dan drum yang digunakan berdiameter 40 mm. Motor yang digunkana ada 4 buah motor, yang mana digunkana untuk; penggerak drum satu buah motor, penggerak troli satu buah motor dan dua buah motor untuk penggerak girder.
Improve penggantian transmisi rantai ke timing belt pada unit lipatan produk alat kesehatan dalam rangka peningkatan produktivitas di PT Aman Jaya Alfian Ady Saputra; Yulia Widhianti; Maison Sormin
Jurnal Teknik Mesin Indonesia Vol. 17 No. 2 (2022): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v17i2.300

Abstract

In the current era of globalization, competition is getting tougher, so companies must do something to survive and advance. PT Aman Jaya is a medical device company, where in the manufacture of medical devices, there is a sub process, namely the product folding process. In this process, problems occur that reduce running hours and cause productivity to decrease. The data used is from the company as well as field observations and analyzed to update the transmission of the product folding device, to reduce stoptime so that productivity increases. One of the causes of the problem is the transmission of the folding device, namely the chain. This transmission rusts due to lack of lubrication and if lubricated, the ash of the paper pulp sticks which over time becomes thick. So that the rotation is unstable, the chain jams, detaches from the sprocket, and breaks. After being analyzed and calculated according to the reference, the chain transmission was replaced with a timing belt of type L, number 165L, tooth are 44, length is 408.10 mm, and small pulley is 14, large pulley is 20, axle distance is 120 mm, for 1: 3 of motor ratio, 1500 rpm of rotation and 350 rpm of fold pulley rotation. By using a chain replacement timing belt, it is expected to reduce product folding trouble to increase productivity. The resulting update can reduce the folding problem, from an average stoptime of 74 min to 6 min. By reducing stoptime, folding problems can increase running hours and increase productivity by 40,800pcs.
Analisa Kekuatan Dan Getaran Overhead Crane 10 Ton Double Girder Dengan Bentangan 17 Meter Proses Material Handling Yulia Widhianti; Alfian Saputra
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol. 12 No. 2 (2022): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v12i2.3616

Abstract

Dalam perancangan overhead traveling crane dengan kapasitas angkat 10 ton. Sebagai acuan untuk merancang dan menganalisa bagian-bagian crane seperti girder, end carriage, tali baja, kait, dan motor, perancang harus mengtahui beberapa hal diantaranya: panjang bentangan crane, tinggi angkat beban, keadaan lokasi, defleksi yang di ijinkan, penambahan beban karena karena dipengaruhi faktor overload dan keadaan dinamis, dan safety factor yang digunakan. Hasil dari perancangan Overhead Travelling Crane dengan kapasitas angkat10 Ton adalah; Struktur yang digunakan atau Gider dan end carriage menggunakan welded box profile, Tali baja yang dibutuhkan adalah tipe 6x36 Warington seale + 1 fiber core, dengan umur tali baja samapai 10.3 bulan. Puli dan drum yang digunakan berdiameter 40 mm. Motor yang digunkana ada 4 buah motor, yang mana digunkana untuk; penggerak drum satu buah motor, penggerak troli satu buah motor dan dua buah motor untuk penggerak girder.
Analisis Keausan dan Umur Pakai Screw pada Mesin Injection Molding untuk Material Polyamide (PA9T) Menggunakan Pendekatan Archard Wear Law Yulia Widhianti; Ahmad Syarif
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 12 No 2 (2026): August
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol12.no2.a22851

Abstract

In manufacturing industries utilizing the injection molding process, the reliability of production machinery is a critical factor influencing production performance, product quality, and operational efficiency. Machine component failures, particularly in the screw, can lead to downtime, reduced productivity, and increased maintenance and production costs. Therefore, an analysis of component wear and service life is essential to support the implementation of effective maintenance strategies. This study aims to analyze the wear rate and service life of screws used in injection molding machines at PT XYZ. The investigation focuses on the effect of processing polyamide (PA9T) plastic material and compares the performance of coated and uncoated screws in terms of component durability. The research methodology includes direct observation of a Fanuc Roboshot α-S150 injection molding machine, wear analysis, and service life estimation using the Archard Wear Law approach. The results indicate that the coated screw has an actual service life of approximately 650,000 shots, whereas the uncoated screw has a service life of approximately 600,000 shots. Thus, the use of a coated screw increases component service life by 8.33% compared to an uncoated screw. These findings suggest that surface coating enhances screw resistance to wear mechanisms occurring during the processing of polyamide (PA9T) material. Furthermore, the study demonstrates that wear analysis can contribute to improved productivity through the implementation of regular and effective machine maintenance practices.
Co-Authors Ahmad Syarif Alfian Saputra Maison Sormin Saputra, Alfian Ady