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Just in time

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Just in time Just in time Presentation Transcript

  • www.a2zmba.com
  • Definition
    • JIT is a manufacturing system whose goal is to optimize processes and procedure by continuously pursuing waste reduction
    • It is both a philosophy and a set of methods for manufacturing. Although it has no single, agreed-upon definition ,JIT emphasizes waste reduction, total quality control, and devotion to the customer.
    www.a2zmba.com
  • Evolution of JIT
    • The history of Japan since world war II is the history of a developing economy, especially manufacturing. The Japanese economy was also ruined and faced the challenge of transition from wartime to a peacetime economy with very resources. This scarcity of resources was a key factor in the evolution of the Just-In-Time philosophy.
    www.a2zmba.com
  • The Seven Wastages
    • Shigeo Shingo, a recognized JIT authority and engineer at the Toyota Motor Company identifies seven wastes as being the targets of continuous improvement in production process. By attending to these wastes, improvement is achieved.
    www.a2zmba.com
  • Contd…
    • Waste of Overproduction
    • Waste of Waiting
    • Waste of Transportation
    • Waste of Processing itself
    • Waste of Stocks
    • Waste of Motion
    • Waste of Making Defective Products
    www.a2zmba.com
  • Japanese Manufacturing Techniques
    • Produce what the customer desires
    • Produce products only at the rate the customer wants them
    • Produce with perfect quality
    • Produce by methods that allow people to
    • develop
    www.a2zmba.com
    • Produce with no waste of labour, material,
    • or equipment; every move has a purpose
    • so there is zero idle inventory
    • Produce instantaneously – with zero
    • unnecessary lead time
    www.a2zmba.com
  • Minimizing Waste: Group Technology (Part 1)
    • Using Departmental Specialization for plant layout can cause a lot of unnecessary material movement
    www.a2zmba.com Saw Saw Lathe Press Press Grinder Lathe Lathe Saw Press Heat Treat Grinder Note how the flow lines are going back and forth
  • Minimizing Waste: Group Technology (Part 2)
    • Revising by using Group Technology Cells can reduce movement and improve product flow
    www.a2zmba.com Press Lathe Grinder Grinder A 2 B Saw Heat Treat Lathe Saw Lathe Press Lathe 1
  • Minimizing Waste : Just-In-Time Production www.a2zmba.com
    • Management philosophy
    • “ Pull” system though the plant
    • Hydraulic Push Systems
    WHAT IT IS
    • Employee participation
    • Industrial engineering/basics
    • Continuing improvement
    • Total quality control
    • Small lot sizes
    WHAT IT REQUIRES
    • Attacks waste
    • Exposes problems and bottlenecks
    • Achieves streamlined production
    WHAT IT DOES
    • Stable environment
    WHAT IT ASSUMES
  • JIT Implementation Requirements: Design Flow Process
    • Link operations
    • Balance workstation capacities
    • Redesign layout for optimum flow
    • Emphasize preventive maintenance
    • Reduce lot sizes
    • Reduce setup/changeover time
    www.a2zmba.com
  • JIT Implementation Requirements: Total Quality Control
    • Worker responsibility
    • SQC in place
    • Enforce compliance
    • Fail-safe methods (poka-yoke)
    www.a2zmba.com
  • JIT Implementation Requirements: Work with Vendors
    • Reduce lead times
    • Frequent deliveries
    • Project usage requirements
    • Clear Quality expectations
    www.a2zmba.com
  • JIT Implementation Requirements: Reduce Inventory More
    • Look for other areas to reduced materials
    • Minimize Stores
    • Minimize Transit
    • Carousels
    • Conveyors
    www.a2zmba.com
  • JIT Implementation Requirements: Improve Product Design
    • Standard produce configuration
    • Standardize and reduce number of parts
    • Align Process design with product design
    • Quality expectations
    www.a2zmba.com
  • JIT Implementation Requirements: Measure Performance
    • Emphasize improvement
    • Track trends
    www.a2zmba.com
  • JIT in Services (Examples)
    • Organize Problem-Solving Groups
    • Upgrade Housekeeping
    • Upgrade Quality
    • Clarify Process Flows
    • Revise Equipment and Process Technologies
    www.a2zmba.com
  • JIT in Services (Examples)
    • Level the Facility Load
    • Eliminate Unnecessary Activities
    • Reorganize Physical Configuration
    • Introduce Demand-Pull Scheduling
    • Develop Supplier Networks
    www.a2zmba.com