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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Trends in Mechanical Engineering Research
Erwin, Erwin
Universitas Sultan Ageng Tirtayasa
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Analysis of The Causes of Failure to Blow 600 ml Bottles on Blow Molding Machine with The Fishbone Diagram NurSalam, Syahlan; Erwin, Erwin; Ilmi, Bahrul
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 9, No 2 (2023): October
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fwl.v9i2.26624

Abstract

Failing Blowing is an imperfect preform blowing process. The defective form can be a puckered preform, a leaking bottle or a puckered bottle. Blowing failure is influenced by three main parameters, namely preform, preblow and blowing temperatures [1]. Then data was taken with variations of the material used, namely preform materials from internal and external. This is not intended to assess the effectiveness of the amount of production using a particular material, but makes a reference in analyzing the problem of failed blowing with different material variations. The analysis stage is carried out using the fishbone diagram method. The results of the analysis found the cause of blowing failure and a significant difference in numbers from the blowing failure data taken on internal and external preforms. The main possible causes of failure to blow settings are inappropriate parameters. The number of blowing failures in internal materials was obtained as many as 23 and in external materials as many as 8 bottles. Then the main parameter settings used in internal materials with a preform temperature of 107oC, a preblow pressure of 6.7 bar and a blowing pressure of 22 bar. While in external materials the preform temperature is 106oC, the preblow pressure is 6.7 bar and the blowing pressure is 22 bar. Looking at the type of material alloy of internal and external preform, this has a difference where the external preform is a preform with 100% PET (virgin) resin while the internal preform is a combination of 25% Recycle PET and 75% PET. This will obviously greatly affect the characteristic properties of the material.
PREVENTIVE MAINTENANCE OF THE GATE VALVE MOV 30, UNIT 7, AT PT. INDONESIA POWER SURALAYA PGU Haafizh, Husain; Erwin, Erwin; Yusuf, Yusvardi; Setiawan, Ipick; Susilo, Sidik; Waloyo, Hery Tri; Jannah, Miftahul
Trends in Mechanical Engineering Research Vol 3, No 01 (2025): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v3i01.34124

Abstract

One of the important components in the power generation process at the Suralaya PGU PLTU is the Gate Valve. The MOV 30 Gate Valve is a valve that functions to regulate the flow of steam gas from the extraction steam to the blow down tank. Preventive maintenance on the MOV 30 Gate Valve unit 7 aims to prevent unwanted damage, reduce the risk of failure, and ensure that the device operates with maximum efficiency. With proper preventive maintenance, PT Indonesia Power hopes to avoid disruptions in power generation operations, minimize downtime, and extend the operational lifespan of the equipment. Damage to a gate valve can be caused by several factors, including excessive pressure in the valve flow, high temperatures passing through the valve, and friction forces when opening and closing the valve.
CONCEPT OF DIGITALIZATION OF SAILING LINE IN CRITICAL AREA THROUGH FISHING BOAT GENERATED WAVE IDENTIFICATION Suprayogi, Dedy Triawan; Satria, Dhimas; Haryadi, Haryadi; Nugraha, Kurnia; Abdullah, Syarif; Erwin, Erwin
Trends in Mechanical Engineering Research Vol 2, No 2 (2024): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i2.30949

Abstract

This paper explores the concept of digitalization in critical sailing lines to manage ship-generated waves (SGW), with a focus on fishing boats. Indonesia, as a maritime nation, faces challenges due to the environmental impact of SGW, such as riverbank erosion, habitat disruption, and damage to marine infrastructure. The proposed digital framework integrates real-time environmental data, including tidal conditions, river currents, and water depth, with vessel parameters like speed and GPS tracking. This system aims to provide accessible information through websites and smartphone applications, enabling safer and more efficient navigation. The results highlight the importance of digitalization in enhancing maritime safety, reducing environmental damage, and improving operational efficiency for fishermen and port operators. 
PREVENTIVE MAINTENANCE IN THE COLD SAW AREA AT PT. KBK Hidayat, Rahmat; Rosyadi, Imron; Pinem, Mekro Permana; Sudrajad, Agung; Saefuloh, Iman; Erwin, Erwin
Trends in Mechanical Engineering Research Vol 2, No 2 (2024): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i2.30950

Abstract

In an increasingly competitive industrial environment, effective maintenance strategies are critical to ensure optimal machine performance and minimize downtime. This report focuses on the implementation of preventive maintenance in the cold saw area at PT. KBK, a steel production company. Preventive maintenance procedures were carried out to sustain machine reliability, particularly focusing on components such as the roll table, bolt coupling motor translation, sliding rails, and hydraulic motors. The report outlines the preventive maintenance schedule, inspection processes, and key findings during the maintenance period. The most frequently encountered issue was the deterioration of the saw blade, affecting cutting quality and operational efficiency. Contributing factors to these issues include human error, material hardness, improper maintenance methods, and machine age. A fishbone diagram analysis was used to determine root causes of failures, highlighting areas for improvement in maintenance practices. The study concludes that consistent preventive maintenance is essential to reduce machine failures, enhance productivity, and improve product quality. Recommendations are provided to enhance the maintenance process, including increased use of personal protective equipment (PPE) and more stringent inspection protocols.
Co-Authors Dhimas Satria Haafizh, Husain Haryadi, Haryadi Hidayat, Rahmat Ilmi, Bahrul Jannah, Miftahul Nugraha, Kurnia NurSalam, Syahlan Pinem, Mekro Permana Rosyadi, Imron Saefuloh, Iman Setiawan, Ipick Sudrajad, Agung Suprayogi, Dedy Triawan Susilo, Sidik Syarif Abdullah Waloyo, Hery Tri Yusuf, Yusvardi