The advancement of manufacturing technology continues to drive optimization in material cutting processes, one of which is the use of CNC Laser Cutting machines. This study aims to analyze the effect of varying cutting parameters on the quality of Stainless Steel 304 cutting results at PT X. The parameters examined include cutting speed, laser power, gas pressure, and focal point...
This study analyzes the effect of parameter variations on CNC Laser Cutting machines on the cutting quality of 5 mm SPHC material at PT. XYZ. The tested parameters include cutting speed, laser power, gas pressure, and the type of gas used. The research methods involve literature review, observation, and experiments with variations in cutting parameters. The results show that the...
The freon injector machine is a crucial component in the production line at PT. XYZ, responsible for refrigerant injection. However, frequent downtime disrupts production efficiency. This study aims to analyze the factors causing downtime in the freon injector machine at PT. XYZ, focusing on Coupler component failures. Using the PDCA method and fishbone diagram analysis, the...
Air pollution in smoking areas can significantly impact human health and reduce indoor air quality. Poor ventilation systems often fail to respond to real-time environmental changes, leading to increased exposure to harmful particles. This research develops an automatic exhaust fan system utilizing a DHT11 sensor and an ESP32 microcontroller to optimize air circulation. The...
Processing of agricultural products, especially coffee, has an important role in the economy of rural communities. One of the main stages in coffee processing is the drying process, which aims to reduce the water content to an optimal level in order to maintain the quality of the coffee beans. In Mekar Buana Village, Tegalwaru District, Karawang, the drying process is still done...
Extrusion blow molding is a process used to form plastic bottles, with High-Density Polyethylene (HDPE) being the most commonly used material. A defect in the snap diameter that did not meet the standard was identified during the production of 100 ml bottles at PT X Jakarta, potentially reducing product quality and affecting its functionality. This study aims to identify the root...
A slow sand filter is a natural water filtration system that uses fine quartz-rich sand as a filter medium. The filtration process runs by gravity at a slow and even speed over the entire surface of the sand, involving physical, biochemical and biological processes simultaneously. To achieve the desired water quality, the filtration system was designed using 8" PVC pipes. The...
CV Renjana Offset is a printing company that produces yearbooks for export. In the production process, various types of rejects were found in the pack products, such as scratches, glue, tears, and problematic pop-ups, as well as in book products, such as reversed arrangement, broken threads, and shadows. This study uses the Cumulative Sum Control (CUSUM) method to analyze product...
Perovskite is one of the materials used for solar panels that offers high efficiency comparable to conventional silicon-based solar cells. This article aims to analyze the latest developments in perovskite solar cells from various important aspects, starting from material development, various fabrication techniques, as well as opportunities and challenges in its development...
Inefficient production processes can cause waste that results in delays, increased operational costs, and decreased productivity. Therefore, identifying and reducing waste is important in achieving better efficiency in the production process. This study aims to identify and reduce waste in the production process of type X connectors at PT XYZ by applying Lean Manufacturing...
This study reviews the fabrication methods and compositions of aluminum matrix composites reinforced with Carbon Nanotubes (CNTs), aiming to enhance the mechanical properties of aluminum composites. The methods analyzed include ball milling, spark plasma extrusion (SPE), and chemical vapor deposition (CVD), each showing unique advantages in improving tensile strength, hardness...
The purpose of this research is to make laboratory-scale bioethanol from agroindustrial waste, namely rice husk through hydrolysis, fermentation, and distillation methods, determine %yield, and characterize bioethanol. The method used was experimental. The results and conclusions obtained are bioethanol that smells like tape, colorless with %yield as much as 3,32%, density of 0...
Waste is a byproduct of production activities, both in the industrial and household sectors. Solid waste, commonly known as garbage, can be divided into organic and inorganic waste. Organic waste from households, such as food scraps and plant materials like wood, twigs, or leaves, can be converted into compost or organic fertilizer that has economic value. The process of organic...
The train is one of the main modes of transportation used in various countries in the world, including Indonesia. The existence of an efficient railway network can support the mobility of people and goods. The safety and comfort of train travel is highly dependent on the condition of the railway facilities and infrastructure. The condition of facilities and infrastructure that...
The management of organic waste into compost is one of the important solutions in an effort to reduce the negative impact of organic waste on the environment. A compost mixer is one of the technologies that can be used to speed up the process of decomposing and forming compost from organic waste. This research aims to continue previous research that has succeeded in making...
The structural strength of locomotive bogies is crucial for bearing operational loads and absorbing engine vibrations to efficiently transmit torque to the train wheels. The traction rod, a critical component in this system, plays a key role in transferring power from the main engine to the locomotive wheels. With the CC300 locomotive engine producing 2.200 hp, the traction rod...
ABSTRACT This study aims to develop an accurate and real-time air quality monitoring system in the Mechanical Engineering Laboratory that provides information on the measured parameter values. The research employs an experimental approach to determine the effectiveness of variables within the experiment. The primary sensor used is the GP2Y1010AU0F Optical Dust Sensor, which...
Aquadest is water from the result of distillation or what is usually called pure water. Aquadest water is water from distillation or what is usually called a process distillation. Aquadest, which is usually called aquadest, is not a water that is easy to find, because the price given is expensive and only used for one or even several specific things in particular chemistry...
This study compares the performance of Solar Power Plants (PLTS) and Steam Power Plants (PLTU) at PT. RAPP. The methods used include daily energy production data collection, environmental observation, and statistical analysis to assess the efficiency and performance of both systems. The analysis reveals that PLTS has high efficiency in converting solar energy into electricity but...
The Musi River's water is typically used to meet everyday needs. However, because of the current high population and activities, industrial and domestic garbage are being dumped straight into the Musi River. The purpose of this research was to study the variables that affect the processing of the Musi Riiver Water Samples to get the quality standard requirements of the third...
The main problem cracker businesses face is the process of cutting cracker dough. Cutting crackers is currently done using a simple cutting tool, but the disadvantages are low cutting capacity, requiring much energy in operation, and low uniformity of cut results. An effort to overcome these problems is to conduct research by developing a cracker dough-cutting machine. The...
The oil filter plays a very important role in the lubrication system, where the oil filter functions as the main filter for the lubrication system. Companies that operate in the energy conversion sector use machines that operate 24 hours to produce their products. The steam turbine engine is a very influential tool. Where this tool is the driver of the pumps that distribute...
Environmental pollution, especially due to pollutants, is a problem that needs special attention. One solution that can deal with this problem is to design and build a machine that can reduce pollutants. This research aims to design and build a pollutant reduction machine with a water circulation system as a reducer. This machine consists of three main components, a reducer tube...
The main problem faced by the instant bubur pedas business unit is the filling of pasta seasoning in the packaging. The packaging of seasoning paste is currently done manually by putting the seasoning paste into the plastic packaging using a spoon. The weakness of the manual filling technique was that it has a small filling capacity and needs to be more practical and hygienic...
A Boiler is a type of closed vessel that transfers heat energy from the combustion process to water until it becomes hot steam (steam). To produce good steam, the Boiler must be reliable in its heat transfer system, mass transfer system and hydrodynamic system. This will also have an impact on cost, thermal efficiency and the environment. In order to produce steam, good...