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JUST IN TIME

LIMIT

JUST IN TIME

JUST ON TIME

JUST OUT TIME

TIME

1.

2.

3.

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DEFINITION OF : JUST IN TIME

TO PRODUCE ONLY WHAT CUSTOMER WANT,

IN ONLY A NEEDED QUANTITY AT THE TIME THEY

REQUIRE.

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JUST IN TIME IS A WORLD’S FAMOUS MANUFACTURING SYSTEM

AND SO CALLED : LEAN MANUFACTURING SYSTEM

KEY ELEMENT OF SYSTEM :

1. WASTE ELIMINATION

2. TAKT TIME

3. ONE PIECE FLOW

4. SMED.

5. PULL SYSTEM

6. VISUAL CONTROLS

7. 5 S.

8. WORK STANDARD

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WASTE DEFINITION

EVERYTHING WE DO THAT COSTS SOMETHING

WITHOUT ADDING VALUE TO THE PRODUCT

MAXIMIZE VALUE ADDED ACTIVITIES

VA = MAX.

MINIMIZE NON-VALUE ADDED ACTIVITIES

NVA = MIN.

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SEVEN TYPES OF WASTE

1. OVER PRODUCTION

2. DELAYS ( WAITING TIME )

3. TRANSPORT

4. PROCESS WASTE

5. INVENTORIES

6. MOTIONS

7. DEFECTIVE PRODUCTS

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TAKT TIME

THE TAKT TIME IS :

450 Minutes available

225 Units of customer’s need

= 2 Minutes per unit

2 MINUTES IS A PRODUCTION TAKT TIME

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ONE PIECE FLOW

TO MAKE THE PRODUCT FLOW IN PIECE BY PIECE

AS TO ELIMINATE ALL KIND OF WASTE

SUB-ASSEMBLING MAIN-ASSEMBLING

ONE PIECE FLOW

BATCH FLOW

SUB-ASSEMBLING

BUFFER STOCK

MAIN-ASSEMBLING

OVER PRODUCTION

FRESSNESS !

LOSS COST

FLEXIBILITY

FLOOR SPACEUNSAFE WORK PLACE

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SMED.

SINGLE MINUTE EXCHANGE OF DIES , TOOLS

OBJECTIVE

<> OPTIMIZE MACHINE TIME

<> REDUCE LEADTIME

<> INCREASE EFFICIENCY

SMED. TRICKS

TO REDUCE INTERNAL TASK WHILE INCREASE EXTERNAL TASK

INTERNAL = TASK DONE BY HUMAN WHILE THE MACHINE MUST STOP PRODUCING

EXTERNAL = TASK DONE BY HUMAN WHILE THE MACHINE IS IN THE PRODUCTION MODE

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PULL SYSTEM

PULL = A MANUFACTURING SYSTEM CONTROLLED

BY THE CUSTOMER.

MANUFACTURER CUSTOMER

PULLING BY CUSTOMER

JUST IN TIMECHAI-YO

TOO MUCHTOO EARLY

PUSH BY MANUFACTURER

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BASIC RULE OF PULL SYSTEM

THE SUPPLIER REPLACES WHAT THE CUSTOMER CONSUMED

THE CUSTOMER ONLY PULLS WHAT HE CONSUMES

STOCKS ARE MAINTAINED AT THEIR MINIMUM LEVELS AT

ALL TIMES

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VISUAL CONTROL

TECHNIC TO ACKNOWLEDGE AT A GLANCE OF :

<> WHAT’S RIGHT

<> WHAT’S WRONG

<> NORMALITY

<> ABNORMALITY

<> WHAT’S DONE

<> WHAT’S LEFT TO BE DONE

<> MANY OTHERS

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5 S.

A DAILY ENGINEERING OF THE WORK PLACE BY DOING :

1. SORTING

2. STRAIGHTENING

3. SWEEPING

4. SIMPLIFYING & STANDARDIZING

5. SUSTAINING

5 S. IS AN ACTIVITY WHICH IS A FOUNDAMENTAL OF

QUALITY , COST , SAFETY

ACTIVITY

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STANDARD WORK

OBJECTIVE :

<> TO MAINTAIN THE SAME QUALITY LEVEL

<> MEETING THE TAKT TIME

<> ENSURE HUMAN WORK EFFECTIVENESS

<> INCREASE HUMAN EFFICIENCY

<> BETTER ASSOCIATION OF HUMAN AND

MACHINE

TO STANDARDIZE THE WORK WHICH DONE BY HUMAN

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THANK YOU