scholarly journals PENERAPAN KAIZEN UNTUK MENGURANGI LOSS TIME DALAM PENINGKATAN PRODUKTIVITAS MESIN INFRARED WELDING (STUDI KASUS PT. MITSUBA INDONESIA)

2021 ◽  
Vol 6 (1) ◽  
pp. 01
Author(s):  
Hartono Hartono ◽  
Fatkhurozi Fatkhurozi

PT Mitsuba Indonesia is a factory engaged in the manufacture of electrical automotive spare parts. The LED winker lamp is the newest product whose production demand is always increasing. The large demand for LED winker lamp products must of course be balanced with the readiness of production machines which are always in good condition. But in practice, the results of the production achievement are still low, this is due to the high machine loss time, especially in infrared welding machines. This study discusses the application of kaizen which aims to find the causes of loss time, make improvements in order to reduce loss time and determine loss time and productivity after repairs are made. The method used to analyze the causes of loss time is to calculate the value of six big losses and analysis of the cause and effect diagram. The analysis results showed that the idling minor factor and stoppages losses caused by part drop error and the set up and adjustment losses factor caused by a change in the type of production jig. Improvements made to the part drop error were adding 1 set of regulators. Meanwhile, the change in the production jig type is to modify the locking system on the lower and upper heater jig. Based on these improvements, it was able to reduce the loss time to 4.86% and productivity to increase 7.50% in July. Loss time fell 4.70% and productivity increased 7.90% in August.Keywords: LED winker lamp, infrared welding machine, loss time, six big losses, productivity.

Author(s):  
Anik Rufaidah ◽  
Nailul Izzah ◽  
Mariyatul Qibtiyah

<em>Jaya makmur abadi merupakan salah satu usaha yang bergerak dalam bidang penangkaran gelondongan udang vannamei dan nener (bibit bandeng) yang berdiri pada tahun 2006. Penelitian ini difokuskan pada risiko rantai pasok penangkaran gelondongan udang vannamei, karena belum teridentifikasi dengan jelas rantai pasok yang digunakan. Tujuan penelitian ini 1) mengidentifikasi kejadian risiko dan sumber risiko dalam aktivitas rantai pasok penangkaran gelondongan udang vannamei 2) penanganan mitigasi risiko dalam aktivitas rantai pasok penangkaran gelondongan udang vannamei. Metode yang digunakan dalam penelitian ini adalah model Supply Chain Operations Reference (SCOR) untuk mengetahui aktivitas rantai pasok, kejaidan risiko, dan sumber risiko. Cause and Effect Diagram digunakan untuk  mengetahui akar penyebeb risiko dan akibatnya dan House of Risk (HOR) digunakan untuk mencegah kejadian risiko dan memitigasi sumber risiko. Hasil penelitian ini didapatkan 24 kejadian risiko dan 22 sumber risiko. Dari diagram pareto terdapat 3 sumber risiko yang akan dilakukan penanganan. Dalam penanganan mitigasi risiko didapatkan 8 rekomendasi aksi mitigasi dalam risiko rantai pasok usaha dagang Jaya Makmur abadi</em>.


2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Ratu Siti Aliah

An evaluation of the water quality at the hatchery of Tanjung Riau was conducted to understand the water quality status at the several place of the hatchery unit such as brood stock tanks, larva rearing tank, water storage tank, fi ngerling tank as well as the source of the water supply. The water quality status of Tanjung Riau generally is in a good condition to support the hatchery activities, but for turbidity and salinity were in the exceed and below the normal status and its infl uence on the spawning activity. To overcome the problem on the spawning of the brood stock, the improving of water supply with higher salinity and low turbidity should be set up to ensure the succeeded of the spawning.Key words : Water quality, grouper brood stock, hatchery,Tanjung Riau Batam


2021 ◽  
Vol 8 ◽  
pp. 2333794X2110104
Author(s):  
Débora de Fátima Camillo Ribeiro ◽  
Frieda Saicla Barros ◽  
Beatriz Luci Fernandes ◽  
Adriane Muller Nakato ◽  
Percy Nohama

Short binasal prongs can cause skin and mucosal damage in the nostrils of preterm infants. The objective of this study was to investigate the incidence and severity of nasal injuries in preterm infants during the use of short binasal prongs as non-invasive ventilation (NIV) interfaces. A prospective observational study was carried out in the public hospital in a Southern Brazil. The incidence and severity of internal and external nasal injuries were evaluated in 28 preterm infants who required NIV using short binasal prongs for more than 24 hours. In order to identify possible causes of those nasal injuries, the expertise researcher physiotherapist has been carried empirical observations, analyzed the collected data, and correlated them to the literature data. A cause and effect diagram was prepared to present the main causes of the nasal injury occurred in the preterm infants assessed. The incidence of external nasal injuries was 67.86%, and internal ones 71.43%. The external nasal injuries were classified as Stage I (68.42%) and Stage II (31.58%). All the internal injuries had Stage II. The cause and effect diagram was organized into 5 categories containing 17 secondary causes of nasal injuries. There was a high incidence of Stage II-internal nasal injury and Stage I-external nasal injury in preterm infants submitted to NIV using prongs. The injuries genesis can be related to intrinsic characteristics of materials, health care, neonatal conditions, professional competence, and equipment issues.


2017 ◽  
Vol 12 (3) ◽  
pp. 161
Author(s):  
Andy Lieman Candra

AbstrakSekretariat Fakultas Sains dan Teknologi Universitas Ma Chung merupakan fakultas dimana Penulis melakukan penelitian. Tujuan dari penelitian ini adalah untuk menganalisis proses bisnis yang ada di Sekretariat Fakultas Sains dan Teknologi Universitas Ma Chung berdasarkan dari hasil wawancara dengan beberapa stakeholder yang memiliki kebutuhan ataupun keluhan terhadap setiap proses bisnis yang berjalan, mengidentifikasi permasalahan dari proses bisnis yang kurang efisien dan membuat usulan perbaikan untuk setiap proses bisnis dengan menggunakan pendekatan ilmu Business Process Reengineering (BPR). Penulis juga menggunakan metode analisis nilai tambah pada penelitian ini. Tujuan dari penggunaan metode analisis nilai tambah adalah untuk mengkategorikan langkah maupun elemen kerja ke dalam tiga kategori, yakni value adding, business value adding dan non value adding. Pengaktegorisasian tersebut bertujuan untuk menghilangkan langkah maupun elemen kerja yang termasuk kedalam non value adding dan meminimalkan langkah maupun elemen kerja yang termasuk kedalam business value adding. Penulis mengidentikasi permasalahan setiap proses bisnis dengan menggunakan diagram sebab akibat. Diagram sebab akibat dapat menggambarkan dengan jelas mengenai permasalahan dengan faktor-faktor penyebab yang memengaruhi permasalahan di setiap proses bisnis. Hasil dari penelitian ini adalah pendesainan ulang setiap proses bisnis menurut kebutuhan dan keluhan dari stakeholder dan setiap proses bisnis di Sekretariat Fakultas Sains dan Teknologi didokumentasikan dalam bentuk standard operating procedure (SOP). AbstractSecretariat of Faculty of Science and Technology Ma Chung University is a place where the author conducts research. The purposes of this research are to analyze business processes in Secretariat of Faculty of Science and Technology Ma Chung University based on interview results with some stakeholders who have needs or complaints with ongoing business processes, identify problems of less efficient business processes and make proposed improvements for each business process using the Business Process Reengineering approach. Author also uses value added analysis method on this research. The purpose of using value added analysis method is to categorize steps or tasks in every business process into three categories: value adding, business value adding and non value adding. The categorizations aim to eliminate steps or tasks included into non value adding and minimize steps or tasks included into business value adding. Author identifies problems of each business process by using cause and effect diagram. Cause and effect diagram can clearly illustrate the problems with the underlying factors that affect the problem in each business process. The results of this research are redesigning every business processes according to the interview results with stakeholders about their needs and complaints and also every business process in Secretariat of Faculty of Science and Technology are documented in the form of standard operating procedure. Keywords: Business Process Reengineering, Value Added Analysis, Standard Operating Procedure and Cause and Effect Diagram.


2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Suharto Suharto ◽  

Abstract This study aims to determine and identify the causes of defects in the production process of PT. Triteguh Manunggal Sejati and know the level of sigma level. This research uses the six sigma method with the DMAIC approach as a quality control tool, which includes the Define, Measure, Analyze, Improve and Control stages. Based on this study the results obtained are the level of sigma level at PT.Triteguh Manunggal Sejati is 4.96, which means that in the stage of sigma level the company has not reached the level of six sigma levels because in the production process at PT.Triteguh Manunggal Sejati still has product defects in the production process not yet achieved zero defect. The causes of product defects are based on cause and effect diagrams namely lid / seal defects are leaky lid, broken lid, and tilted lid. Kata kunci : Defect, Six Sigma, DMAIC, cause and effect diagram


2013 ◽  
Vol 712-715 ◽  
pp. 1235-1240
Author(s):  
Pei Wu ◽  
Yong An Zhang ◽  
Chuan Zhong Xuan ◽  
Yan Hua Ma

The dynamic mechanical responses of resistance welding machine,which is mainly governed by the mechanical parameters of the machine, is very important to the weld quality especially in projection welding when collapse or deformation of work piece occurs. In this paper, a mathematical model for characterizing the dynamic mechanical response of resistance welding machine and a special test set-up called breaking test set-up have been developed. Based on the model and the test results, the mechanical parameters of the machine were identified, including the equivalent mass, the damping coefficient, and the stiffness for both electrode systems.


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