Efficiency, Utilisation and OEE

Question 1

How do you calculate EFFICIENCY?

Answer 1

1. Work out EFFECTIVE CAPACITY

design capacity - planned losses (maintenance is here as well)

2. Work out ACTUAL OUTPUT

effective capacity - breakdown - labour shortage

Question 2

How do you calculate UTILISATION?

Answer 2

1. Work out EFFECTIVE CAPACITY

design capacity - planned losses

2.Work out ACTUAL OUTPUT

effective capacity - breakdown - labour shortage - maintenance

Question 3

What is formula for OEE?

Answer 3

a x p x q

Question 4

How do you find designed capacity total?

Answer 4

Times the hours in use by the days in operation

Question 5

How do you calculate TOT (Availability loss)?

Answer 5

Loading time - hours not in use - changeovers/setup - breakdowns

Question 6

How do you calculate NOT (Speed loss)?

Answer 6

Idle time + ((TOT - idle time) * 100 - percent)

THEN

TOT - the above answer

Question 7

How do you calculate VOT (Quality loss)?

Answer 7

NOT * error rate

THEN

NOT - the above answer

Question 8

When calculating OEE, remember…

Answer 8

The a x p x q needs to be in DECIMAL PLACES NOT PERCENTAGES!!