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Jurnal Titra
Published by Universitas Kristen Petra Surabaya
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Core Subject : Engineering,
Industrial & Manufacturing Engineering
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Articles 24 Documents
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Search results for , issue "Vol 3, No 1 (2015)" : 24 Documents clear
Penurunan Kecacatan di PT Mulcindo Steel dengan Pendekatan Filosofi Six Sigma Punyawan, Shandy Ernanto; Rahardjo, Jani
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

PT Mulcindo Steel Industry is a company specialized in steel fabrication, service, forming products, hollow products, c-truss products, and galvanizing process. Defect’s percentages on c-truss, main runner, batten hat 28x17, metal runner, and mini furring are over 0,05% but the study will be focused on the highest percentage which is the c-truss with 0,11% defect percentage. DMAIC is used as a method to find problem’s root cause which is found by 5 why analysis. There were several suggestions which are product defective definitions, product quality characteristic socialization to employees, coil width checksheet monitoring, c-truss machine work instruction, straightening uncoiler to the machine. It is found that solution implementation can reduce the defect percentage in c-truss product to 0,073%. The result have been able to reduce the level of defect on the type of different “kupingan tidak sama”.
Perbaikan Sistem Pergudangan di PT. X Pratama, Otto; Widyadana, I Gede Agus
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

This paper anlayze PT X warehouse system since some problems that are faced by the company such as full capacity warehouse, the absence of a inventory control system, and bad facility layout. The full capacity warehouse problem is solved by using capacity analysis, repayment of raw material analysis, and selling the clothes waste. The improvement of inventory control system is conducted by comparing periodic review system and economic order quantity, while for the raw materials placement problem is solved by grouping the raw material. A periodic review system is simulated to know the number of raw material savings. The simulation result shows that the number of the raw materials can be reduced as much as 7 percent, while the new raw material placement save 42 percent of traveling distance.
Peningkatan Kapasitas Produksi pada PT. Adicitra Bhirawa Putri, Karine Santoso; Widyadana, I Gede Agus; Palit, Herry Christian
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

Currently, PT. Adicitra Bhirawa wants to increase their production capacity from 120 truck boxes per month into 250 truck boxes per month. The increasing of production capacity is applied by changing their production system from the piecework production system into line production system. The line production system is more efficient than the piecework production system in terms of the worker productivity. Line production system is designed using two heuristic methods of line balancing, Kilbridge-Wester and Helgeson-Birnie. The result shows Kilbridge-Wester gives the better result with 15 workstations. The proposed line production system can achieve the production target and increase the monthly worker productivity from 5.7 truck boxes/worker to 11.9 truck boxes/worker. A proposed plant layout is applied in order to support the new line production system.
Penyusunan Hazard Identification Risk Assessment and Risk Control (HIRARC) Di PT. X Irawan, Shandy; Panjaitan, Togar W.S; Bendatu, Liem Yenny
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

PT. X is a company which produces a variety of glassware product. PT. X wants to develop Hazard Identification Risk Assessment and Risk Control (HIRARC) in order to fulfill the requirement of OHSAS 18001:2007 application. The area covers in raw materials warehouse, production, and finished good warehouse.The preparation of HIRARC is divided into 3 stages which are hazard identification, risk assessment, and risk control. Hazard identification is performed based on interviews with the workers, the observations in the factory, and the historical data of accidents at PT. X. The result of the risk assessment shows 34% of activities is categorized as low risk, 58% of activities is categorized as moderate risk , 8% of activities is categorized as high risk and there is no activity in the category of extreme risk. Risk control will be performed on activities with moderate risk and high risk category. Based on the result, there are 4 potential hazards with high risk category, which are the sharpness of the material in the production area, shortness of breath due to workers are not wearing APD, shortness of breath due to the pungent smell from additives during the casting process, and the hook of the basket is fragile in the mixing process. Risk Control is undertaken by giving APD, safety sign, punishment, equipment maintenance, and make a special area for walking.
Pengukuran Overall Equipment Effectiveness (OEE) di PT Astra Otoparts Tbk. Divisi Adiwira Plastik Wijaya, Christian Yoko; Widyadana, I Gede Agus
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

Overall equipment effectiveness (OEE) is a performance measurement tool that can measure the production losses and identify improvement potential. PT Astra Otoparts Tbk. Adiwira Plastics Division (PT AO AWP) is a manufacturing company of automotive components made from plastic which always perform continuous improvement to increase productivity. The problem is the lack of OEE calculation standar prosedure for family mold usage in plastic injection machines. The other problem is the production data on the web which used to measure the performance of the production process can not show the actual condition of plastic injection machine. The cause of this problem are database system, shot per hour (SPH) system updates, and admin errors in data input. Error in production data can lead to errors in performance calculation result of production process as well as errors in set improvement point analysis. The OEE calculation result using production data from Laporan Hasil Produksi is 86%. the result of this calculation is analyzed to obtain the most influential factor and get the root causes for the decisions of improvement.
Usulan Penurunan Tingkat Kecacatan Produk Sosis Ayam di PT Charoen Pokphand Indonesia -, Samuel; -, Felecia
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

PT Charoen Pokphand Indonesia is one of Indonesia’s producer of poultry feed, day old chicks and processed chicken. This research is conducted in sausages plant in Surabaya which produced chicken and beef sausages. Chicken sausages have several types of defects like wrinkled (0,9%), fungus (0,04%), and reject cooking (0,34%). The purpose of this research is to find the defect’s root cause and to propose solutions to reduce chicken sausages defects.DMAIC is used as a method to find problem’s root cause and solution in this research along with interview and direct field observation. It is found that defects caused by operator lack of focus during operation, no quality inspection for PVDC plastic, machine breakdown and no standardized working procedure.This research proposed the company to give morning briefing for operators, quality inspection by quality control department for PVDC plastic, designing tray separator, designing checklist form, downtime form, and work instruction. It is expected to reduced chicken sausages defects up to 1,28%.
Penurunan Persentase Rework di PT X dengan Metode DMAIC Aransa, Hervy Monica; Yang Aysia, Debora Anne
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

PT X is a company which is focused on bag and plastic production. The high percentage of rework which is about 25.5% is one of the problems in this company. The purpose of this research is to decrease the rework percentage in PT X Company by using DMAIC method (Define, Measure, Analysis, Improve and Control). There are three types of defects that often happen based on Pareto Diagram, which are not proportional shapes, less of needlework and over-needlework.  Fishbone Diagram is used to find the cause of defects which are human factors, method and machine. There are six ways to decrease the higher percentage of reworks such as, making operator evaluation form, making sewing pattern using chalk, making a layer to measure the shape of product, rechecking the product at the end of production process, making a list of working instructions  and changing the needle regularly. By implementing four ways, it can reduce the number of defects which are 6 % on not proportional form and 2.27% on less of needlework. It also increases the percentage of over-needlework detects which is 1.33%. In general, there is a decreasing percentage of the number of defects which is about 6.9% after implementation. Control steps using quality plan, is made as a standard that aims to describe the production process, its name, material and characteristics quality which including types of defects, acceptance, measurement method, inspection period, inspection method, person in charge, and the actions based on quality characteristic.
Perbaikan Sistem Keselamatan dan Kesehatan Kerja di PT. X Sutrisno, Billy Yonathan; Panjaitan, Togar W.S; Rahardjo, Jani
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

PT. X is one of the leading furniture and also only exporting its products. One of the desire of the company is “To be one of the market leaders of furniture industry”, while the vision of PT. X is ” Producing high quality with reliable design”.This factory is currently running the system of health and safety work  in the factory area. However, the improvement is still need to be done by minimizing potential risks with HIRARC(Hazard Indentification, Risk Assessment and Risk Control). The result shows  47% of activities are considered as low risk, 36% of activities are considered as moderate risk, and 17% of activities are considred as high risk. There are 4 activities categorised as high risk that must be considered which are sawdust that is inhaled by an operator, member of the body missing, member of the body and exposed side off wood that isn’t neat.
Upaya Peningkatan Output Produksi di PT. X Setiawan, Aldo Christianto; Octavia, Tanti
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

PT X is a clothing company that produces bags and floor math. The problem that occured is unfulfilled the company’s target. The average of production output is only 24.82% of the capacity. Some of the causes of the problem are the production output decreased after 14.30 pm, the workers did not reach the target, and the decreasing of production output day after delivery the finished goods as 37.3%.The proposed improvements are company should provide target for each process of production and avoid the delivery of finished goods on Friday.
Upaya Peningkatan Output Produksi Pada Fasilitas Kerja Departemen Preparation Di PT. Integra Indocabinet Jayadi, Lim Robby; Palit, Herry Christian
Jurnal Titra Vol 3, No 1 (2015)
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Abstract

PT. Integra Indocabinet is a company which produces indoor furniture that is make to order. Problems were discovered on the production floor of Preparation Department, they are in the process of jumping saw and the rotary press. Problem that occurred in the process of jumping saw was inefficient of unloading activities then resulting in the accumulation of wood. On the other hand, problem that occurred in the process of rotary press was overtime process. Regarding of those problems, proposed improvement was given to jumping saw process by redesign its table in order to be more efficient then can speed up the unloading time. While for the rotary press process, it was proposed to add glue spreader roll on each rotary machine so that the clamping process would approach the ideal processing time. Trial of improved jumping saw process has been done and has proven to increase production capacity by 34%, but for the rotary press has not been done yet due to unavailability of spreader roll and unfinished of re-layout process.

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