A Presentation on

Submitted to :-

VISVESVARAYA NATIONAL INSTITUTE OF TECHNOLOGY,NAGPUR

JUST IN TIME (JIT)

Prepared by :-

K S S SANTOSH KUMAR

PROBLEMS IN MANUFACTURING…

Getting the right material and physical resources together at the right place and at the right time to meet the customer’s requirements.

Desired features, On time delivery, High Quality, at the best price…

BREAKING DOWN THE PROBLEM…

Getting the material needed…

Having enough inventory of material to support production

Not having too much inventory and extra costs…

Where the action is!

JUST IN TIME

Only what is needed, nothing more... To have only the right materials, parts and products in theright place at the right time.

• Incorrectly rumored to have been invented by Henry Ford.

• Actually invented by Taiichi Ohno of Toyota.

• Management philosophy• “Pull” system though the plant

WHAT IT IS

• Attacks waste• Exposes problems and bottlenecks• Achieves streamlined production

WHAT IT DOES

• Employee participation• Industrial engineering/basics• Continuing improvement• Total quality control• Small lot sizes

WHAT IT REQUIRES

• Stable environment

WHAT IT ASSUMES

THREE ELEMENTS OF JIT

JIT manufacturing focuses on production system to achieve value-added manufacturing

TQM is an integrated effort designed to improve quality performance at every level

Respect for people rests on the philosophy that human resources are an essential part of JIT philosophy

CLAIMS FOR JIT:

reduced inventory

reduced WIP

shorter lead times not too early, not to late...

JIT is the result businesses want, not a starting point

THE SEVEN WASTES

Waste of over production

Waste of waiting

Waste of transportation

Waste of processing itself

Waste of stocks

Waste of motion

Waste of making defective products

ROLE OF INVENTORY REDUCTION

Inventory = Lead Time (less is better)

Inventory hides problems

Benefits of JIT implementation include:

Reductions in downtime; Reductions in inventory; Reductions in scrap and rework; Reductions in work space; Increased inventory turns; Increased labor utilization; Increased equipment utilization; and Improved service to customers.

IN MCDONALD’S

CHALLENGES BEFORE MCDONALD'S

High holding costs are the nature of the fast food industries

Wastage Time

IN MCDONALD’S

JIT system wherein McDonald's doesn't begin to cook its orders until a customer has placed a specific order.

IMPLEMENTATION OF JIT

sophisticated burger-making technology (including a record-breaking bun toaster)

McDonald's is able to make food fast enough to wait until it's been ordered.

Reduction in wastage

IMPLEMENTING IN JIT PRODUCTION SYSTEMS

Criteria for success

1. Service

2. Quality

3. People

4. Food preparation

5. Profitability

.

BENEFITS

Improved Quality – The burgers are prepared freshly and hence the quality has improved.

Customer service – As the burger is made only after the order is placed, making special orders is not an issue.

Cost Reduction – Due to significant reduction in wastage as uncooked material has a higher shelf life.

Reduction in waiting – Customer’s waiting time reduce 11 min. to just 1 and half min.