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SISTEM PRODUKSI TEPAT WAKTU (JUST-IN-TIME PRODUCTION SYSTEMS) Roesfiansjah Rasjidin Teknik Industri – Fakultas Teknik Universitas Esa Unggul.

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Presentation on theme: "SISTEM PRODUKSI TEPAT WAKTU (JUST-IN-TIME PRODUCTION SYSTEMS) Roesfiansjah Rasjidin Teknik Industri – Fakultas Teknik Universitas Esa Unggul."— Presentation transcript:

1 SISTEM PRODUKSI TEPAT WAKTU (JUST-IN-TIME PRODUCTION SYSTEMS) Roesfiansjah Rasjidin Teknik Industri – Fakultas Teknik Universitas Esa Unggul

2 Penilaian Akhir UAS: 35% UTS: 30% Tugas/Quiz: 15% Kehadiran: 10% Partisipasi kelas: 10%

3 Rencana Perkuliahan Asal, tujuan & definisi JIT Keuntungan, perbandingan dgn sistem konvensional, dan skema JIT Konsep 5S dan persiapan sumberdaya manusia Sistem Tarik dan Sistem Dorong Sistem Kanban Produksi Lot Kecil Reduksi Waktu Set-up SMED dan Teknik Reduksi Waktu Set-up Pemeliharaan dan perbaikan mesin dan peralatan Teknologi kelompok dan sel manufaktur Screening, pokayoke & jidoka Leveling production Sinkronisasi dan penyeimbangan proses

4 PENGANTAR History and Origins of JIT Definition and Objectives of JIT JIT Benefits and Success Factors Comparison: Conventional vs JIT Systems JIT Scheme

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6 Origins of Just-in-Time  JIT originated in Japan, post WWII  Driven by a need survive after the devastation caused by the war  JIT gained worldwide prominence in the 1970s  Japanese firms, particularly Toyota, in 1970's and 1980's © Wiley 2007

7 Origins of JIT (cont’d)  Taiichi Ohno and Shigeo Shingo  Geographical and cultural roots  Japanese objectives  “catch up with America” (within 3 years of 1945)  small lots of many models  Japanese motivation  Japanese domestic production in 1949 – 25,622 trucks, 1,008 cars  American to Japanese productivity ratio – 9:1  Era of “slow growth” in 1970's 7

8 Waste: Time, Material & Resources Bad design Machine downtime Unreliable supplier Poor quality Inefficient layout

9 Waste Elimination  Ohno devised a new system of production based on the elimination of waste.  Waste was eliminated by:  just-in-time - items only move through the production system as and when they are needed  autonomation - automating the production system so as to include inspection - human attention only being needed when a defect is automatically detected whereupon the system will stop and not proceed until the problem has been solved

10 JIT Objectives Ultimate objectives:  Zero Inventory.  Zero lead time.  Zero failures.  Flow process.  Flexible manufacture.  Eliminate waste. 10

11 JIT Definition Just-in-time (JIT) is defined in the APICS dictionary as “a philosophy of manufacturing based on planned elimination of all waste and on continuous improvement of productivity”. It also has been described as an approach with the objective of producing the right part in the right place at the right time (in other words, “just in time”).

12 JIT Benefit Summary Improvement Aggregate percentage (3-5 years)Annual percentage Manufacturing cycle time reduction80-90% 30-40% Inventory reductions: Raw materials Work-in-process Finished goods Labor cost reductions: Direct Indirect Space requirements reduction Quality cost reduction Material cost reduction

13 Suppliers Preventive Maintenance Layout Inventory Scheduling Quality Employee Empowerment JIT Just-in-Time Success Factors

14 Three Elements of JIT © Wiley 2007

15 JIT and Competitive Advantage JIT Requires:

16 Which Results In: Which Yields: JIT and Competitive Advantage

17 Comparison: Conventional vs JIT Systems

18 Just In Time Scheme


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