Planning with JIT - PowerPoint PPT Presentation

lotus
slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
Planning with JIT PowerPoint Presentation
Download Presentation
Planning with JIT

play fullscreen
1 / 18
Download Presentation
Planning with JIT
174 Views
Download Presentation

Planning with JIT

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

    1. 1 Planning with JIT ISQA 459 Mellie Pullman

    2. 2 The TPS Approach to Productivity Elimination of waste Efforts concentrated on shop floor Respect for people Quality improvement focus Key elements of our planning approach are changed!!!!

    3. 3 Minimizing Waste: Uniform Plant Loading

    4. 4 Mixed Batch Example Company produces three products with a mixed model assembly line. Operates 16 hours per day for 250 days/yr. Determine the mixed model MPS for a daily batch. Determine minimum batch MPS and the mix schedule for a day.

    5. 5 Calculations

    6. 6 Mixed Batch Example Company produces four products with a mixed model assembly line. Operates 8hours per day for 250 days/yr. Determine the mixed model MPS for a daily and hourly batch . Determine mix schedule for a day.

    7. 7 How to order parts: Kanban Production Control Systems

    8. 8 Determining the Number of Kanbans Needed Setting up a kanban system requires determining the number of kanbans (or containers) needed. Each container represents the minimum production lot size. An accurate estimate of the lead time required to produce a container is key to determining how many kanbans are required.

    9. 9 The Number of Kanban Card Sets

    10. 10 Example of Kanban Card Determination: Problem Data A switch assembly is assembled in batches of 4 units from an upstream assembly area and delivered in a special container to a downstream control-panel assembly operation. The control-panel assembly area requires 5 switch assemblies per hour. The switch assembly area can produce a container of switch assemblies in 2 hours. Safety stock has been set at 10% of needed inventory.

    11. 11 Example of Kanban Card Determination: Calculations

    12. 12 JIT Requirements: Process Changes that affect planning Link operations Balance workstation capacities Re-layout for flow Emphasize preventive maintenance Reduce lot sizes Reduce setup/changeover time

    13. 13 JIT Requirements: Improve Product Design Standard product configuration Standardize and reduce number of parts Process design with product design Quality expectations

    14. 14 JIT Requirements: Work with Vendors Reduce lead times Frequent deliveries Project usage requirements Quality expectations

    15. 15 MRP and JIT

    16. 16 MRP Small Bucket Approach

    17. 17 MRP Balanced Flow

    18. 18 MRP vs. The Supermarket