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All Journal Jurnal Sistem dan Manajemen Industri Jurnal INTECH Teknik Industri Universitas Serang Raya Jurnal InTent: Jurnal Industri dan Teknologi Terpadu JiTEKH (Jurnal Ilmiah Teknologi Harapan)

Rosihin Rosihin

Universitas Serang Raya

Author-ID : 2500245

Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Articles

Analisis Pengendalian Kualitas Super Absorbent Polymer Dengan Menggunakan Metode Six Sigma Rosihin Rosihin; Laksamana Mujaddid Ulinnuha; Dadi Cahyadi
Jurnal Sistem dan Manajemen Industri Vol. 1 No. 1 (2017)
Publisher : Universitas Serang Raya

Quality control is an effort to increase customer satisfaction and minimize damage. Super Absorbent Polymer which is a product as a raw material for making baby diapers / elderly and sanitary napkins. In Super Absorbent Polymer, defects usually found in the colour contamination that there is a dark colour on the product, print labels mistakes and packaging defects. This study aims to determine the value of DPMO and sigma level, identify the efforts which is taken to reduce disability, identify the types of disability, and find the main factors causing disability. Six Sigma method is used to analyze data with define, measure, analyze, improve and control. The quantitative data obtained by direct observation of quality problems. By using the method of six sigma can be seen that the quality of the resulting product is quite good that is 3.07 sigma with a damage rate of 58,624 for a million production (DPMO). The three highest defect product causes are color contamination of 93.34%, misprint of 3.55%, and packaging damage as much as 3.11%. The main factor causing defects is the engine factor for the type of colour contamination defect,. The type of improper defects in the packaging labels and main factor for the packaging defects is the human factor.kecacatan rusaknya kemasan faktor utama ialah faktor manusia.

Analisa Pengendalian Kualitas pada Proses Azodicarbonamide dengan Pendekatan Metode Six Sigma Rizki Syahriyanti; Rosihin Rosihin; Gerry Anugrah Dwiputra
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 4 No. 1 (2018)
Publisher : Universitas Serang Raya

Foaming Agent company is a company engaged in the chemical industrial manufacturing, especially the additive industry for plastic and synthetic rubber. In the production process, the Foaming Agent Company has a problem with one of its products, Azodicarbonamide (ADCA). The number of defects caused becomes a problem primarily related to the course of production and the relationship with the customer. The research was conducted using the Six Sigma method by implementing DMAIC (Define, Measure, Analyze, Improve, Control). This study aims to identify the factors that cause defects and the most optimal choice of options to increase the level of sigma in the ADCA production process. Based on the results the most significant aspects that cause defects in ADCA products is Average Particle Size; 66.77% of the overall production defects. The sigma level that obtained before and after the improvisation is 3.68 and 4.03 with the average achieved savings per month are Rp.600 million. The results of the gradual decrease in defects showed that the options implemented at the improvisation stage were successful, but still needed improvisation so that the company's performance can be even better

Penerapan Lean Manufacturing untuk Mengurangi Waste pada Produksi Absorbent Agung Ravizar; Rosihin Rosihin
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 4 No. 1 (2018)
Publisher : Universitas Serang Raya

This study aims to reduce the waste that occurs on each workstation and has an impact on increasing productivity and reducing production costs caused by waste that occurs during production. The data used for this study is quantitative data obtained by direct observation to the relevant departments regarding the problem of identifying waste that occurs — data taken from observations as much as 30 times the collection of data and historical data used from January 2016 to June 2017. By using the value stream mapping method on lean manufacturing, it can be seen that there are five types of waste from the existing seven waste. The five wastes are unnecessary motion, waiting, reject, transportation and in-process processes. From the results of the value stream mapping carried out a reduction in waste on each workstation with a total reduction of waste that occurs at 66.97 tons / year or 18.6% on waste gel and 88.8 tons / year or 19.3% at waste powder and there was a reduction in the changeover process for 45 minutes or 12.16% of the total changeover time before the improvement. Also, there was also an increase in the production process speed of 2 minutes 47 seconds or 4.52% from the lead time of the previous production process, 61 minutes 34 seconds to 58 minutes 47 seconds.

Analisis Time Series Perencanaan Inventory Naphtha dan Penentuan Reorder Point pada Crude C4 Kefin Rendi Kuncoro; Gina Ramayanti; Rosihin Rosihin
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 2 No. 1 (2016)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v2i1.863

The raw material used by this company is the result of refining petroleum in the form of naphtha and crude c4. In this discussion, there was often a buildup of ships in the Anchorage area before leaning on the Jetty because there was no ready storage of raw materials to receive cargo. To overcome the problem in inventory naphtha, it uses the exponential smoothing method by finding the smallest MAD. And to overcome the difficulty in C4 crude using the reorder point method to determine the existing safety stock. Based on the results of calculations using the exponential smoothing method, the smallest MAD is obtained which is 5099.66 with a value of α 0.9. And with the estimate of safety stock for naphtha tanks that is equal to 11898.5 tons with a safety factor of 95%. The results of the reorder point calculation on Crude C4 obtained a safety stock of 1959 Tons with ROP (Reorder Point) of 3959 Tons which means that when supplies have reached ROP, it is recommended to send the Crude C4 product to the shipment so that excessive production does not accumulate in the tank.

Analisis Pengendalian Kualitas pada Produk Genteng Di CV. SDH Cilegon dengan Menggunakan Statistical Processing Control (SPC) Rendhy Rinaldy Febriyanto; Rosihin Rosihin; Mohamad Jihan Shofa
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 2 No. 2 (2016)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v2i2.869

CV. SDH Cilegon is engaged in construction services in carrying out production process activities; companies still experience product failures caused by humans, raw materials, machinery, methods and the environment and factors that often occur are humans because all production activities are carried out by humans, including machine operation. This study aims to analyse the quality of roof tile products with a statistical processing control approach. For work methods, returning to human factors again where the wrong approach to work can result in disability in production. Raw materials and the environment also affect the defects that arise. Sixty-three units dent failures that often occur; there are foreign bodies of 47 units, imperfect shape of 33 units, so the total number of defects is 143 units.

Analisa Perbaikan Tata Letak Gudang Coil dengan Metode Class Based Storage Rosihin Rosihin; Ma’arij Ma’arij; Dadi Cahyadi; Supriyadi Supriyadi
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 7 No. 2 (2021)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v7i2.4036

Pengaturan tata letak mempunyai peranan penting dalam mempercepat proses operasi suatu sistem. Sistem pengaturan tata letak coil yang menggunakan random storage masih berdampak pada perusahaan seperti tingkat waktu dan kelelahan pekerja. Penempatan produk yang belum sesuai dengan spesifikasi tempat membuat proses kerja yang lama seperti pada saat loading shipment, handling coil dari line packing dan pada proses transfer ke intermediate. Penelitian ini bertujuan untuk mengefektifkan sistem tata letak coil sehingga dapat mengoptimalkan sistem kerja. Penelitian menggunakan metode class based storage yang membagi produk ke dalam tiga klasifikasi yaitu fast moving, medium moving, dan slow moving. Klasifikasi diawali dengan mengurutkan material berdasarkan frekuensi perpindahan. Perubahan pengaturan tata letak coil mampu memberikan tingkat efisiensi yang lebih baik dibandingkan dengan random storage. Perbandingan waktu shipment lebih cepat dari area fast moving ke area shipment yaitu memakan waktu tempuh 1 menit. Tingkat efisiensi jarak mencapai 66% jika fast moving ditempatkan ke area C4 dan 29% jika fast moving ditempatkan di C2. Pengaturan dengan pendekatan class based storage mampu memberikan hasil yang optimal terkait dengan efisiensi jarak.

ANALISIS PENGENDALIAN KUALITAS RESIN AMINO MENGGUNAKAN METODE SIX SIGMA Firdanis Setyaning Handika; Rosihin Rosihin; Tri Kuntoro
Jurnal Intent: Jurnal Industri dan Teknologi Terpadu Vol 5 No 2 (2022): INDUSTRIAL
Publisher : Prodi Teknik Industri, Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar

PT Citra Resins Industries merupakan perusahaan yang memproduksi resin yang terletak di Kawasan Modern Industri, Kibin, Serang, Banten. Salah satu produknya yaitu resin amino dan sering terdapat defect seperti resin kotor dan haze. Penelitian ini bertujuan untuk mengetahui tingkat sigma, mengetahui penyebab cacat, dan mengetahui usulan perbaikannya. Metode yang digunakan adalah six sigma dengan konsep DMAIC. Berdasarkan pengolahan data diperoleh nilai sigma sebesar 3,20 dengan DPMO 47.382,71. Jenis cacat terbanyak yaitu resin kotor (69,95%) dan haze (26,58%). Penyebab cacat resin kotor dan haze yaitu faktor manusia, bahan, mesin, metode, dan lingkungan. Usulan perbaikan yang dapat diberikan antara lain perawatan mesin secara rutin, membuat jadwal kebersihan, mengadakan pelatihan, dan melakukan pengawasan dari atasan.

Pemodelan Sistem Persediaan Menggunakan Pendekatan Sistem Dinamik Tubagus Evan Zulfikar; Supriyadi Supriyadi; Rosihin Rosihin; Ahmad Nalhadi
JITEKH Vol 11 No 2 (2023): September 2023
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v11i2.783

Kondisi bisnis yang tidak menentu dapat berdampak pada permasalahan terkait dengan permintaan dan persediaan. Tingkat persediaan yang kurang baik berdampak pada permasalahan kekurangan maupun persediaan. Penelitian ini bertujuan mensimulasikan tingkat persediaan suatu distributor berdasarkan estimasi tingkat permintaan yang terjadi. Penelitian ini menggunakan model simulasi program dinamik dengan bantuan tools Powersim 10. Hasil pemodelan dinyatakan valid apabila titik validasi AME kurang dari 30% dan dinyatakan menyerupai bila titik validasi AME kurang dari 10% Hasil simulasi menunjukkan pemodelan pada stok gudang mendapatkan nilai validasi 3,37 dan tingkat permintaan sebesar 2,02 yang yang menyatakan model data dikatakan valid. Hasil pengujian menunjukkan hasil simulasi memberikan sistem prediksi lebih baik dibandingkan dengan menggunakan metode moving average.

Co-Authors Agung Ravizar Ahmad Nalhadi Cahyadi, Dadi Firdanis Setyaning Handika Gerry Anugrah Dwiputra Gina Ramayanti Kefin Rendi Kuncoro Laksamana Mujaddid Ulinnuha Ma’arij Ma’arij Rendhy Rinaldy Febriyanto Rizki Syahriyanti Shofa, Mohamad Jihan Supriyadi Supriyadi Tri Kuntoro Tubagus Evan Zulfikar

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