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All Journal Rekayasa Mesin JTT (Jurnal Teknologi Terpadu) Turbo : Jurnal Program Studi Teknik Mesin KACANEGARA Jurnal Pengabdian pada Masyarakat Manutech : Jurnal Teknologi Manufaktur Jurnal Teknik Mesin Indonesia Infotekmesin Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Sains dan Teknologi Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Prihadianto, Braam Delfian
Universitas Gadjah Mada
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

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Pembuatan dan Analisa Performa Tekanan dan RPM Pada Komponen Swing Hidrolik Di Alat Peraga Mini Excavator Aji, Angga Prasetio; Prayoga, Benidiktus Tulung; Winarto, Felixtianus Eko Wismo; Prihadianto, Braam Delfian; Bahari, Galuh
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 1 (2024)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v8i1.1683

Abstract

The Vocational School Education is a university-level higher education program that places greater emphasis on practical fieldwork relevant to industry needs rather than academic theoretical knowledge. In Indonesia, vocational school programs or diplomas play a crucial role in the development and scientific research. The creation of a mini excavator model is a research and innovation project aimed at supporting students' practical training activities. The development of hydraulic swing components is used to enhance the components of the mini excavator model, which will later be expanded for educational purposes in the hydraulic drive system. The ultimate goal of this research is to manufacture hydraulic swing components that will be installed in the mini excavator model, with the final objective being to determine the pressure and rpm performance of these hydraulic swing components. Based on the conducted research, operating the mini excavator model requires a radius dimension or distance from the center point to the warning line of 3 m², and the maximum pressure for the mini excavator model is 150 kgf/cm², resulting in 11.17 rpm. Meanwhile, the allowable pressure for operating the hydraulic swing components in the mini excavator model is 100 kgf/cm², resulting in 8.54.
Perhitungan Pengendalian Persediaan Fast Moving Spare Part Dengan Metode Min-Max Stock Alyaa Sekar Khairunnisa; Braam Delfian Prihadianto
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1933

Abstract

Maintenance is an effort to maintain a heavy equipment unit to keep it in good condition. One of the techniques to maintain unit performance is by carrying out maintenance management which is a combination of various activities such as monitoring, scheduling, repairing, and inventory control. One part of maintenance management is inventory management which aims to ensure the availability of spare parts in the warehouse so that it can increase the efficiency of maintenance time. The purpose of this study is to calculate the supply of fast-moving spare parts, especially oil filters and diesel filters using the Min-Max Stock method at PT Armada Hada Graha Basecamp Kelontong. The research used a comparative quantitative method utilizing spare parts usage data from January to March 2022 and inventory stock data on March 2022. From the calculation results it can be concluded that the percentage of filter inventory between the minimum and maximum stock values ​​is 7%. It happens due to several factors, namely, materials, methods, machines, and the environment.
Analisis Kekuatan Tarik dan Regangan Filamen Carbon Fiber Hasil 3D Print dengan Variasi Fill Density Braam Delfian Prihadianto; Suryo Darmo; Dani Anggoro Hasan; Dovan Ndaru Ananda
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1936

Abstract

Mechanical properties problems that are closely related to the strength of 3D printed products generally occur during the development of 3D printing machines, In which several components used are the results of additive manufacturing technology. The damages generally occur in the components that receive force and the damage is in the form of cracks and fractures. The focus of this study is to determine the effects of increasing the value of fill density on mechanical properties, especially tensile strength and strain with carbon fiber filament material. This study used an experimental method using two types of filament material: nylon carbon fiber and PLA carbon fiber with a diameter of 1.75 mm for each filament and a recommended printing temperature of 190-260°C. Both types of filaments were printed using a direct extruder type 3D printing machine with a build size of 180 mm x 180 mm x 180 mm and printing was carried out at atmospheric pressure and a horizontal printing area. The Universal Testing Machine carried out mechanical properties testing implementation related to tensile strength and strain. Based on the results of experiments and tests that have been carried out, the strain values ​​are 16.970 – 26.681% and the tensile strength is 19.244 – 23.899 MPa for nylon carbon fiber filament material. Whereas the PLA carbon fiber filament material, the strain value is 7.673 – 15.546%, and the tensile strength is 18.580 – 24.552 MPa. Therefore, based on the test results, it is known that the fill density parameter value has an influence on the strain value and tensile strength so that it can be used as a reference in setting machining parameters.
Analisis Desain Boom, Arm, dan Bucket Alat Peraga Mini Excavator Zhugimada dengan Metode Elemen Hingga Braam Delfian Prihadianto; Suryo Darmo; Dani Anggoro Hasan; Suhada Nur Esa
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2124

Abstract

An excavator is heavy equipment with a hydraulic system as the main drive and along with its uses, many parties have developed it as a means of production and as a means of learning. The education world needs excavators as learning tools and practice media are currently constrained by price when commercial units are used. Therefore, a learning media that is more compact but does not abandon the main essence of learning is needed. This research aims to analyze the front attachment design of the Zhugimada mini excavator using the finite element method. The research was carried out using the ANSYS application for the static load simulation process and testing was carried out with a bucket containing sand weighing 25 kg and using three hydraulic cylinders. The simulation results show that the maximum von Mises stress value in the bucket component is 43.226 MPa and the maximum deformation is 0,51285 mm in the tooth bucket so in general the design of the Zhugimada mini excavator front attachment components can be declared safe and can be continued in the fabrication process.
Analisa Performa Tekanan dan RPM Pada Komponen Swing Hidrolik Pada Alat Peraga Mini Excavator Aji , Angga Prasetio; Bahari, Galuh; Winarto, Felixtianus Eko Wismo; Prihadianto, Braam Delfian
Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 1 (2024): JTRAB Volume 1, No 1, 2024
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v1i1.8929

Abstract

A learning method is essential to achieve the existing curriculum standards. For success in the learning process, media or teaching aids are needed to enhance the process and learning outcomes related to students' levels of thinking (Suwardi et al., 2014). The mini excavator trainer serves as one of the solutions to support learning in hydraulic systems. The development of the hydraulic swing component is intended to improve the components of the mini excavator trainer, which will later be developed into a teaching aid for hydraulic drive systems. The ultimate goal of this research is to create a hydraulic swing component to be installed on the mini excavator trainer and, finally, to determine the pressure and RPM performance of the hydraulic swing component. Based on the research conducted, operating the mini excavator trainer requires a radius dimension or distance from the center point to the warning line of 3 m², with a maximum pressure of 150 kgf/cm² producing 11.17 RPM, while the allowable pressure to operate the hydraulic swing component on the mini excavator trainer is 100 kgf/cm², producing 8.54 RPM.
Optimalisasi Exhaust Brake pada Unit HINO 500 FM 260 JD untuk Menurunkan Potensial Lost Cost Unit Hauling M.Burhanudin; Harjono, Harjono; Prihadianto, Braam Delfian; Sugiyanto, Sugiyanto
Jurnal Teknologi dan Rekayasa Alat Berat Vol 2 No 1 (2025): JTRAB Volume 2, No 1, 2025
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v2i1.13196

Abstract

Based on field observations, the exhaust brake component on the Hino 500 FM 260 JD unit frequently experiences breakdowns. One of the primary causes of failure is the ingress of mud into the exhaust chamber, which disrupts the functionality of the component. This study aims to compare the performance of exhaust brake components with and without a protective cover to enhance their lifetime, analyze the failure rate, and calculate the potential lost cost associated with exhaust brake failures in hauling units. Data collection was conducted directly in the field, and protective covers were installed on three dump truck units in the hauling fleet. The test results indicate that when the exhaust brake component was used without a cover, 14 failures were recorded, whereas with the cover installed, only 4 failures occurred. These findings demonstrate that the protective cover significantly impacts the lifetime and failure rate of the exhaust brake component. Following the testing phase, a potential lost cost analysis was conducted, considering four cost variables: spare parts, production losses, operator costs, and mechanic costs.
Analisis Penyebab Kerusakan Transmisi Dump Truck LGMG CMT 96 DT 060-032 di PT ANSAF INTI RESOURCES Irsal Revanza; Surojo, Surojo; Harjono, Harjono; Prihadianto, Braam Delfian
Jurnal Teknologi dan Rekayasa Alat Berat Vol 2 No 1 (2025): JTRAB Volume 2, No 1, 2025
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v2i1.14179

Abstract

Dump truck LGMG CMT 96 is employed by PT Ansaf Inti Resources for overburden transportation, operating up to 22 hours per day. In the unit coded DT 060-032, a transmission failure was detected at 2,143.5 hours, significantly below the company's target of 20,000 hours. The symptoms of the failure included the activation of the transmission warning indicator, fault codes, excessive jolts during operation, transmission overheating, and gear shifting failures. This study identifies the primary causes of the failure through monitor checks, visual inspections, historical maintenance data, the Machine Inspection Program (PPM), the Lubricant Analysis Program (PAP), and transmission overhaul results. The applied failure analysis method revealed brittle fracture of the lock-up clutch and excessive clutch wear due to deformation, heat spots, and blue temper. Operational errors were concluded to be the main cause of the transmission failure, leading to clutch slip and the appearance of fault code F:191 S:8.
Analisis Optimalisasi Perawatan Excavator Untuk Menunjang Produktivitas Unit Luthfi Wifaqi, Ahmad Naufal; Prihadianto, Braam Delfian; Winarto, Felixtianus Eko Wismo; Harjono; Oktavian, Dicky
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2387

Abstract

Maintenance is an important daily activity that aims to ensure equipment or units can operate properly by reducing the risk of damage. One of the heavy equipment units used in mining projects is an excavator, but the high frequency of breakdowns in excavator units requires optimization of the maintenance that has been carried out. This study aims to analyze the performance and effectiveness of hydraulic excavator unit maintenance using the physical availability, mechanical availability, use of availability, mean time between failure, and mean time to repair calculation methods. The calculations show an 8.12% increase in the average PA, MA, and UA values and a 5.16-hour increase in MTBF. Meanwhile, the MTTR calculation results indicate a time reduction of 6.16 hours after optimization. The calculation results after optimization show that the maintenance carried out is effective and efficient to support the unit's productivity
Uji Performa Sistem Hidrolik Alat Peraga Mini Excavator Zhugimada Nur Esa, Suhada; Prihadianto, Braam Delfian; Anggoro Hasan, Dani; Ardean Kurnianto Prayitno, Yosephus; Septian, Miko; Nurul Hidayat, Anisa
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2532

Abstract

Practical learning activities on heavy equipment units are important because they increase understanding of work systems and provide an actual picture. The need for excavators for practicum activities in vocational education is currently hampered by price issues when commercial units are used as learning tools, therefore learning media in a more concise form are needed without ignoring important aspects. The manufacture of mini excavator props has been carried out but research related to work system testing is still rare, so performance testing of the work system is needed to ensure the performance of the props. The aim of this research is to test cylinder speed, cylinder pressure and cylinder drift using quantitative observation methods with variations in zero capacity, struck capacity and heaped capacity transport. From the test results, it was found that the cylinder speed values ​​were between 0.028–0.081 m/sec, the cylinder pressure was 17–20 bar for the boom, 65–72 bar for the arm, 24–34 bar for the bucket and the increase in length in the cylinder drift test was 0 mm
Pengaruh Preventive Maintenance Terhadap Performa Unit Excavator Komatsu PC 200-8 di PT PP Presisi Jobsite Main Hauling Road PT Hengjaya Mineralindo Prihadianto, Braam Delfian; Wiyono, Al Difa Naufal Akmal; Winarto, Felixtianus Eko Wismo; Harjono
Jurnal Teknik Mesin Indonesia Vol. 20 No. 1 (2025): Vol. 20 No. 1 (2025): 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.v20i1.694

Abstract

Excavators are multi-purpose equipment that has various functions. To keep the excavator in top condition even though it’s used continuously, it’s necessary to carry out preventive maintenance on the excavator unit. Preventive maintenance is maintenance carried out on a unit to prevent unexpected damage and to find conditions that could cause damage when using the unit. The reality in the field is that there are many delays in implementing preventive maintenance on excavator. Delays that occur will have an impact on the excavator both in terms of unit condition and unit productivity. This study aims to analyze the effect of preventive maintenance on excavator units in the period February to June 2023 using the Physical Availability, Mechanical Availability, and Effective Utility calculation methods, as the potential lost costs that the company will incur if there is a delay in preventive maintenance on the excavator unit. The analysis results show that units with timely preventive maintenance have a higher average value of 28% for PA, 31.7% for MA, and 24.8% for EU. Delays in preventive maintenance affect the condition of the unit, where the lifetime of a component should be used longer. The estimated losses experienced by the company were estimated at IDR 433,700,000 per unit during the data collection period, from the total units that experienced delays in preventive maintenance.
Co-Authors Achmad Fikry Adhim, Inn Aka La’ala Khuluqin Aisyah , Nyayu Aisyah, Nyayu Aji , Angga Prasetio Aji, Angga Prasetio Aldi Prabowo Alyaa Sekar Khairunnisa Ananda, Dovan Ndaru Anggoro Hasan, Dani Ar-Rizqi, Muhammad Hisyam Ardean Kurnianto Prayitno, Yosephus Ari Reza Koswara Arifin, Fadhilah Akmal Rofiq Bahari, Galuh Bahiuddin, Irfan Benidiktus Tulung Prayoga Dani Anggoro Hasan Dani Anggoro Hasan Dovan Ndaru Ananda Eka Legya Frannita Estiko, Dendi Milnanda Felixtianus Eko Wismo Winarto Fikry Alvianto Kurniawan, Fikry Gesang Nugroho Handoko Harjono Harjono Harjono Hasan, Dani Anggoro Hidayat, Anisa Nurul Irsal Revanza Khairunnisa, Alyaa Sekar Kurniawan, Stephanus Danny Luthfi Wifaqi, Ahmad Naufal M.Burhanudin Muhammad Imam Yusuf Nur Esa, Suhada Nur Hidayatulloh, Fikhih Nurul Hidayat, Anisa Oktavian, Dicky Prayitno, Yosephus Ardean Kurnianto Purwanto , Sigit Radhian Krisnaputra Septian, Miko Setyawan Bekti Wibowo Setyawan, Wawan Budi Soeadgihardo Siswantoro Sugiyanto - Suhada Nur Esa Surojo, Surojo Suryo Darmo Suryo Darmo Widada, Reza Ananda Winarno, Felixtianus Eko Wismo Wismo , F. Eko Wiyono, Al Difa Naufal Akmal