Journal Jurnal Sistem dan Manajemen Industri-
Jurnal Sistem dan Manajemen Industri, Volume 2, pp 23-32; doi:10.30656/jsmi.v2i1.559
Abstract:PT. Tainan Enterprises Indonesia branch of Cianjur produce various kinds of garment products. One of the most widely product is trousers. The product are still many defects. This is showed from the number of defective products during February 2015 until mid- March 2015 which reached 509 products unit of 10.138 trousers produced. Therefore, appropriate quality control is required to optimize the quality of trousers products. This research method uses Six Sigma approach with DMAIC cycle (Define, Measure, Analyze, Improvement, Control). Based on the results of the research is known the most dominant type of defect is oblique belt loop and skid jump defects. Factors causing of oblique belt loop defects are sourced from human factors (operator does not follow signs and operators are fatigue), engine factor (old machine age and engine setting less than perfect), material factor (needle material less reliable and materials need to be heating which is high), and the method factor (information on working methods is still lacking). While the factors causing of skid jump defects are sourced from human factors (operator is less careful in choosing to sewing needles and operators experience fatigue), machine factor (old machine age and no regular machine maintenance), material factor (needle less reliable sewing), and method factors (production supervision and quality control are still weak). Quality Increasing could be can increase the value of Six sigma from 3.82 to 4.27.
Jurnal Sistem dan Manajemen Industri, Volume 2, pp 17-22; doi:10.30656/jsmi.v2i1.557
Abstract:Administrative Bureau of Academic and Student Affairs (BAAK) Tridinanti University of Palembang (UTP) is an institution that serves the academic administration and UTP student affairs. The approval of the KRS (Card Study Plan), the management of transcripts of grades, and the taking of diplomas are the requirements of the students at BAAK, so in the registration condition of the students, especially at the end of the registration period, there is a solid queue that the majority of the students need is the endorsement of KRS. One factor could be due to lack of servers (service personnel). The purpose of this study to determine the needs of the number of servers that should be used BAAK UTP using queue theory. The results showed that the condition of queue in solid condition, need to be added 1 server so that become 4 server, level of usage that is 79%.
Jurnal Sistem dan Manajemen Industri, Volume 2, pp 1-8; doi:10.30656/jsmi.v2i1.518
Abstract:PT. X is a distributor of spare parts with 128 customers for Surabaya City and Sidoarjo City. Number of delivery vehicles owned by PT. X is 15. Determination of delivery route owned by PT. X is completed manually based on driver experience. This research is to make a model of determining the route with minimum cost by considering the travel time and the capacity of the vehicle. Model formation is accomplished in accordance with the PT X policy that each colleague can only be served by one vehicle and the maximum shipping time of 7 hours. The model formed is Heterogeneous Fleet Vehicle Routing Problem with Time Windows (HFVRPWTW). The settlement method used is Evolutionary Algorithm (EA) by reviewing 3 cases. The number of vehicles decreased by the model is with an average difference of 1.67 vehicles. The shipping cost generated by the model is lower than the company for case 1 of 3,155 IDR and case 2 of 25,005 IDR. This condition indicates the model will use less number of vehicles with low shipping costs and large container utilities in 2 cases.
Jurnal Sistem dan Manajemen Industri, Volume 2, pp 9-16; doi:10.30656/jsmi.v2i1.481
Abstract:In order to increase productivity required synergizing and balancing all components in the work system. The achievement of labor productivity through activity sustainable done at one manufacturing companies who produce capacitor. In the packing process is done manually using bending tools that cause fatigue 90-95% tired on the right foot and right hand, with the average reject 14% and only meet 66% output target. The purpose of this research is make a bending machine to increase the capacity process of packing, so it expected to decrease reject mechanical and indirectly decrease the work load operator. The design of the bending machine is done by testing the T-test statistic (paired T-test) against the mechanical reject by making the machine system semi-automatic with motor and engine control on the machine table design using the average height of the operator seat with the aim that the standard time can be faster, The human workload based on the man machine system may decrease. The result of bending machine design shows that the standard time after design is increased from 1.52 seconds to 1.02 seconds so the average output increase from 16578 capacitors to 24705 capacitors. The reject mechanical fell significantly from the average total of 2210 to an average total of 446 and the man workload in this study decreased from 25.29 minutes to 6.23 minutes, so the production target could be met.
Jurnal Sistem dan Manajemen Industri, Volume 2, pp 51-57; doi:10.30656/jsmi.v2i1.568
Abstract:The quantity and quality of coal affects the efficiency of the generating unit, therefore the utilization of Transfer Conveyor 17A is very necessary to fulfill the fuel requirement (coal) of PT Indonesia Power Unit Generation Unit Suralaya. Transfer conveyor is an additional element in a conveyor belt circuit that serves to channel coal from unloading area until coal bunker (power plant). This study aims to find out the value of OEE Transfer Conveyor 17A which is used as the basis of proposed improvement based on the lowest value of the three parameters in OEE. The concept of research adopting OEE method with the value of quality is assumed 97,50% because the equipment that becomes the object of research does not produce the product. The result of calculation obtained by OEE value equal to 82,98% with ratio Availability 86,76% Performance Eficiency 98,09% and Rate of Quality 97,50%. A planned maintenance action is required to avoid unpredictable engine damage such as the operator checking the machine before it is operated, providing periodic training to operators and maintenance to improve their capabilities.
Jurnal Sistem dan Manajemen Industri, Volume 2, pp 41-50; doi:10.30656/jsmi.v2i1.609
Abstract:PT. LF Beauty Manufacturing Indonesia is a Hong Kong-based Li & Fung group of companies engaged in manufacturing services. The Company has 4 regular customers, namely: PT JHHP, PT.Diversey, PT.Topindo and PT.Wavin. During 2015 the company got 12 defect complaints which 8 complaints came from PT. JHHP. This study aims to determine the cause of disability complaints of PT JHHP, provide improvements to existing problems so that it does not occur in the future and as a measure of company productivity to improve production quality. This research method uses Six Sigma with DMAIC stages (Define Measure, Analyze, Improvement, Control). The object of research is the production data of August 2015 in accordance with customer complaints data. The result of analysis of JHPP customer's complaint obtained the biggest defect of kiwi paste product according to the diagram is finish good leak. Factors affecting the defect complaints of the finish good leaked kiwi paste product is the operator often do autocapper engine wind adjusment, unavailability of space thermometer tool in the warehouse area and dry production area, unavailability of wind pressure gauge used to determine the number of bars used in the asemble process and the temperature of the storage area space exceed the standard set. Defect value decreased, before implementation of 3.497 DPMO with sigma level 4.20 to 568 DPMO with 4.75 sigma level
Jurnal Sistem dan Manajemen Industri, Volume 2, pp 33-40; doi:10.30656/jsmi.v2i1.608
Abstract:Work related accident is a problem that needs to be considered seriously in Indonesia. The number of occupational accidents is increasing significantly from 96,314 in 2009 to 110,285 in 2015. The mortality rate in these cases is very high. This research aims to develop a daily fitness for duty index as a measurement to ensure that workers are able to work effectively and safely. Systematic literature review had been carried out through several stages, i.e. 1) determination of searching strategy, and searching process, 2) determination of searching criteria, 3) quality control for literature, and 4) conclusion. The experiment involved four participants. They divided into two groups: night shift workers and morning shift workers. Total sleep time, heart rate at rest, reaction time, and body weight were recorded during the experiment. The daily fitness for duty index has been developed that consider sleep sufficiency factor, circadian cycle misalignment factor, and individual factor. The daily fitness for duty index has a strong correlation with subjective work readiness measurement. Therefore, it can be concluded that the daily fitness for duty index is trustworthy to measure fitness for duty.
Jurnal Sistem dan Manajemen Industri, Volume 1, pp 68-72; doi:10.30656/jsmi.v1i2.413
Abstract:Age and years of service are factors directly related to work productivity. Age and employment perceived by employees can decrease productivity or increase employee productivity. This research was conducted at PT. Oasis Water International Palembang Branch and aims to determine the influence of Age and Duration of employment on employee productivity. The number of sample is 27 respondents by using random sampling technique. Analysis method used is multiple linear regression method using SPSS aid which includes t test and F test. As independent variable (independent), that is age and work period, while dependent variable is work productivity. The result of data analysis showed that the variable of age and duration of work did not have a positive effect on work productivity, where the probability value of F test of significance value for the effect of age and work period simultaneously to productivity was 0.355 > 0.05 and F value count 1.083
Jurnal Sistem dan Manajemen Industri, Volume 1, pp 85-90; doi:10.30656/jsmi.v1i2.478
Abstract:At this time Krebo Jantan Restaurant has plans to conduct business development in the field of food. Krebo Jantan Restaurant has a problem as to whether its business development plan can provide feasibility for future growth of the company. The purpose of this study is to determine the possibility of the business plan for the development of food business with the limits of research on the assessment of financial aspects. Primary data collection is done through field observation, interview and questionnaire filling. Objects in interviews and surveys are business owners and residents around the place of business. Secondary data are obtained from literature studies. Data were analyzed by using Payback Period (PBP) method, Present Net Value (NPV) method, and Internal Rate of Return (IRR) Method. The result of the research shows the ability of the company to return all investment cost is for four years eight months. Cash funds collected from year to year if assessed at present with a positive value at the end of year 5 (five) and the ability of the company's business to provide annual average return/dividend amounted to 20.494%. Based on the results of financial analysis shows that all economic feasibility criteria are met so that the development of business feasible to be carried out under standard conditions,
Jurnal Sistem dan Manajemen Industri, Volume 1, pp 91-98; doi:10.30656/jsmi.v1i2.477
Abstract:Every company tries to minimize the cost of production to get the product with the price of flocking. A Chemical Company in Cilegon has a production cost reduction program. However, in the process of creation, still found some factors that cause high production costs, especially the cost of electricity in pumping equipment. This study aims to determine the causes of high electricity consumption in the drainage pump unit, provide suggestions for improvement and evaluate the results of revision. This research uses some new quality tools consisting of affinity diagrams, interrelationship diagrams, matrix diagrams, tree diagrams, and Process Decision Program Chart (PDPC). Based on the results of the research, the factors causing high electricity consumption in the drainage pump unit are DCS-Man forgot to stop at the G-1875 pump, the C-1851 sealing output goes to the slimy pit, and the G-1871 sealing output goes into the dirty hole. The remedial step is to move the C-1851 sealing output from the muddy ditch to the clean trench, moving the G-1871 sealing output from the filthy ditch to the clean ditch, fixing the leak in the sample product box, and the G-1875 pump made auto start-stop. These drainage improvements resulted in drainage units operating two times per week from the previous 18 times per week or decreased by 89% and can save as much as Rp 1,677,205 per year.