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All Journal JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Ucok Mulyo Sugeng
Institut Sains dan Teknologi Nasional
Industrial & Manufacturing Engineering

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ANALISA PERBANDINGAN BIAYA PENGGUNAAN NUTRUNNER MANUAL DAN OTOMATIS MENGGUNAKAN METODE COST & BENEFITS ANALYSIS Ucok Mulyo Sugeng; Tahi Manurung
JISI: Jurnal Integrasi Sistem Industri Vol 4, No 1 (2017): JISI UMJ
Publisher : Fakultas teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jisi.4.1.65-72

Abstract

In a situation of increasingly fierce competition in every manufacturing company, PT SZI supposedly able to apply concepts and production strategies well as improve product quality. Thus the need for the selection of the right nutrunner as an investment in the assembly process. The assembly process is the part that greatly affects the quantity and quality of production in the manufacturing industry, the faster the process of assembling the more units are produced. Likewise with the production quality, the better the nutrunner is used it will be less risk of rejection unit which will incur additional costs.Nutrunner is a tool used for tightening bolts / nuts that are powered by wind energy or electricity. The different types of energy use in nutrunner that is the term naming nutrunner automatic and manual will be compared based on several aspects that will be selected which are more efficient in the production process. In search results of the comparison, cost calculation will use the application Desoutter Rightway. After known perbandinagn some aspects costs (energy costs, productivity costs, calibraton cost, maintenance cost, and quality cost) then the analysis will be continued use Cost & Benefits Analysis to get some of the goals of this research, which is a long period of return on investment or breakeven on the project this nutrunner with Payback Period method. Besides the cost analysis is also used to find the value of benefits in order to determine whether the project is feasible and acceptable methods Return on Investment.After the data were analyzed using the method of cost and benefit analysis then obtained a long period of payback or breakeven for automatic nutrunner investment is 1.22 years and 14.63 months. As for the value of the benefits of 146%, this means that the project is acceptable because it provides the advantages of the total investment cost.
PERHITUNGAN LENGAN EXCAVATOR KAPASITAS 450 KG UNTUK LABORATORIUM Ucok Mulyo Sugeng; Deniyanto
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 7 No 2 (2020): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v7i2.11

Abstract

Dewasa ini sistem hidrolik banyak digunakan dalam berbagai macam industri. Salah satu alat yang menggunakan sistem hidrolik adalah hydraulic excavator atau excavator hidrolik. Penggunaan alat ini harus memperhatikan kapasitasnya. Penggunaan melampaui kapasitas berakibat kerusakan dan kecelakaan. Tujuan penelitian ini adalah untuk mengetahui kapasitas beban design vs actual dari excavator hidrolik kapasitas 450 Kg yang digunakan di laboratorium. Metode yang digunakan dalam penelitian ini adalah analisis kuantitatif yaitu Analisa mekanis pada setiap parts yg terkait dan uji analisa FEM . Dengan dilakukan perhitungan ini maka dapat diketahui kekuatan dan kapasitas lengan excavator serta cara kerja dari sistem hidrolik. Hasil dari penelitian yaitu dengan perhitungan, rangka meja penopang lengan excavator mempunyai tegangan maksimal (σ = 15.62 N/mm²) lebih kecil dari tegangan maksimal bahan (σ = 350 N/mm²), dengan SF=22,4  maka konstruksi meja penopang alat peraga lengan excavator dinyatakan aman . Sedangkan untuk kekuatan silinder hidrolik mempunyai gaya pada saat in stroke sebesar F= 20.742 N dan saat out stroke sebesar F= 27.632 N. Jika kekuatan silinder hidrolik dibandingkan dengan beban total lengan excavator yang memiliki beban design maksimal terbesar diterima oleh silinder Boom yaitu sebesar  F= 9.037,05 N, nilai ini lebih kecil dibandingkan  kapasitas gaya dorong  silinder F= 27.632 N, maka dapat disimpulkan bahwa sistem hidrolik aman digunakan karena gaya dorong lebih besar dari beban maksimal.
Co-Authors Deniyanto Tahi Manurung