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1. Presented by
Just In
Time

2. HISTORY OF JUST IN TIME
Evolved in japan after world war 2nd
, as a result of their diminishing
market share in the auto industry.
Toyoto………..Motor…….Compan- first
to implement fully functioning and
successful JIT system , in 1970’s.

4. definition
It defines as a philosophy of
manufacturing based on planned
elimination of all waste & continuous
improvement of productivity.

5. FUNCTIONING OF JUST IN TIME
 Involves keeping stock levels to a minimum.
 Stock arrives just in time to be used in
production.
 Works best where there is a close relationship
between manufacturer & suppliers.
 Goods not produced unless firm has an order
from a customer.
 Aims to get highest volume of output at the
lowest unit cost.

6. philosophy
 JIT is a philosophy of continuous & forced problem
solving.
 Helpful in supporting strategies of rapid response &
low cost.
 Supplies & components are “ pulled” through a
system to arrive where they are needed & when
they are needed.
 JIT are particularly helpful in supporting strategies of
rapid response & low cost.

8. benefits
Low inventory levels
Shorter production cycle time
Improved product quality
Reduce work in progress
inventory
Better labour utilisation

9. Concept
 waste reduction & variability reduction
any thing that to achieve just-in-
does not add value. Time material
movement.
 “pull” versus “push”system
A system that pushes materials into downstream
work stations regardless of their need or availability
of resources to perform work.

10.  Manufacturing cycle time
manufacturing cycle time is the time
between the arrival of raw materials
& the shipping of finished products . JIT
helps in reducing the manufacturing
cycle time.

11. Lean production & JIT
The waste in time caused by having to repair
faulty products
The waste of investment in keeping high
inventories
The waste of having idle workers
To operate the facility in a just-in-time mode

12. ELEMENTS
Eliminating waste
eliminating waste of all kinds in the deep-seated
technology behind JIT.
Enforced problem solving
by not keeping safety stocks. JIT
systems implement enforced problem
solving.

13. Continuous improvement
continuous improvement is central to the
philosophy of JIT.
Involvement of people
people involvement & employee
involvement is crucial to the success of JIT
system

14. Total quality management
TQM & JIT complementary to each
other.
Parallel processing
parallel processing reduces
manufacturing lead times.

15. Tools & techniques
 Kanban system or pull scheduling
A Japanese word meaning “ card” & these cards
are the means of communicating within , to & from
a work centre.
 Formula :-
n = DT/C

16.  Set up reduction
 Lean production
 poka-yoke
 Quality at the source
 Standardisation & simplification
 Supplier partnerships
 Reduced transaction processing
 Kaizen ( continuous improvement )

21. IMPLEMENTINGINJIT PRODUCTIONSYSTEMS
 criteria for success
Service
Quality
People
Food preparation
Profitability

22. OVERVIEWS OBJECTIVES
 Romantic JIT’s :- it consists of various slogans & idealistic
goals such as lots size of one , zero inventories & zero defects
 Pragmatic JIT’s :- it consists of a set of techniques , some
fairly technical ,that relates to machine change over layout
design , product simplification, quality training , equipment
maintainence & so on.
 SMED ( single minute exchange of die) :- JIT systems
concentrate on reducing the cost of setting up machine to
avoid the negative aspects oof producing small lot size.

23. The end