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JIT: Definitions? . JIT Head Chicken JIT Oh JIT (O
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1. Chapter 11 Just-In-Time and Lean Production
2. JIT: Definitions? JIT Head
Chicken JIT
Oh JIT (O´JIT)
Tough JIT
Strate JITs
3. What is JIT ?
4. What is JIT? a corporate system designed to produce output within the minimum lead time and at the lowest total cost by continuously identifying and eliminating all forms of corporate waste and variance.
a corporate strategy
a philosophy
Focus of JIT:
• variance & waste
5. Seven Basic Types of Waste Waste from overproduction
Waste from waiting times
Transportation waste
Process Waste
Inventory Waste
Waste of motion
Waste from product defects
6. Waste in Operations
7. Waste in Operations
8. Waste in Operations
9. Common Causes of Waste Layout (distance)
Long setup time
Incapable processes
Poor maintenance
Poor work methods
Lack of training
10. Objectives of JIT Produce only the products the customer wants.
Produce products only at the rate that the customer wants them.
Produce with perfect quality
Produce with minimum lead time.
Produce products with only those features the customer wants.
Produce with no waste of labor, material or equipment -- every movement must have a purpose so that there is zero idle inventory.
Produce with methods that allow for the development of people
11. Basic Elements of JIT
12. Flexible Resources
13. Standard Operating Routine for a Worker
14. Cellular Layouts
15. Manufacturing Cell with Worker Routes
16. Worker Routes Lengthened as Volume Decreases
17. JIT Principles Create flow production
• one piece flow
• machines in order of processes
• small and inexpensive equipment
• U cell layout, counter clockwise
• multi-process handling workers
• easy moving/standing operations
• standard operations defined
18. Balanced Production • TAKT time
• Objective -- Build at rate that the customer wants work
• Balance the system to maximize
efficiency at this rate
19. TAKT Time TAKT
• the beat
• (Net Available Operating Time) / Customer Requirements
• time periods must be consistent
Example of calculation
20. TAKT Time Example Net Available Operating Time
• Time per shift 480´
• Breaks (2 @ 10´) - 20´
• Clean-up - 20
• Lunch - 30
• NAOT/shift 410´
Customer Requirements
• Monthly 26,000
• No. Working Days 20
• CR/Day 1,300
T/T
• 410´/shift*60"/min*3 shifts/1,300
• 56.769" per part or 57"
21. The Pull System
22. Kanban Production Control System
23. A Sample Kanban
24. The Origin of Kanban
25. Types of Kanbans
26. Types of Kanbans
27. Types of Kanbans
28. Types of Kanbans
29. Determining Number of Kanbans
30. Determining the Number of Kanbans
31. Small-Lot Production
32. Inventory Hides Problems
33. Lower Levels of Inventory Expose Problems
34. Components of Lead Time
35. SMED Principles
36. Common Techniques for Reducing Setup Time
37. Common Techniques for Reducing Setup Time
38. Common Techniques for Reducing Setup Time
39. Uniform Production
40. Mixed-Model Sequencing
41. Quality at the Source
42. Visual Control
43. Visual Control
44. Visual Control
45. Kaizen
46. Total Productive Maintenance (TPM)
47. TPM Requires Management to:
48. Supplier Policies
49. Benefits of JIT
50. JIT Implementation
51. JIT In Services