In this presentation you will find the equations you need to calculate OEE for any production line or machine with a practical example .

1. How to Calculate
OEE

2. I am here because I love to help operations
management people ;)
Hello!
I Am Hassan Mortada
You can contact me at info@hassanmortada.com

3. Perfection is not attainable,
but if we chase perfection we
can catch excellence.
Vince Lombardi

4. OEE =Availability X Productivity X Quality

5. Availability=
( 𝑨𝒗𝒂𝒊𝒍𝒂𝒃𝒍𝒆 𝑻𝒊𝒎𝒆 –𝑼𝒏𝒑𝒍𝒂𝒏𝒏𝒆𝒅 𝑫𝒐𝒘𝒏𝒕𝒊𝒎𝒆)
𝑨𝒗𝒂𝒊𝒍𝒂𝒃𝒍𝒆 𝑻𝒊𝒎𝒆
× 100
Available Time = Total available time – Planned downtime
Planned downtime :
• Preventive maintenance.
• Breaks.
• Meetings.
• Planned shutdowns.

6. Productivity=
𝑨𝒄𝒕𝒖𝒂𝒍 𝑶𝒖𝒑𝒖𝒕/𝑰𝒅𝒆𝒂𝒍 𝑹𝒖𝒏 𝑹𝒂𝒕𝒆
𝑶𝒑𝒆𝒓𝒂𝒕𝒊𝒏𝒈 𝑻𝒊𝒎𝒆
× 100
Operating Time = Planned Operating Time– Downtime
Actual Output = quantity of good parts + quantity of bad parts

7. Quality=
𝑨𝒄𝒕𝒖𝒂𝒍 𝑶𝒖𝒑𝒖𝒕−𝑫𝒆𝒇𝒆𝒄𝒕𝒆𝒅 𝑷𝒂𝒓𝒕𝒔
𝑨𝒄𝒕𝒖𝒂𝒍 𝑶𝒖𝒕𝒑𝒖𝒕
× 100

8. Example:
A production line works for 1 shift of 8 hours with 1 hour break for the
operators . The average downtime for this line is 50 minutes per shift
and the Ideal run rate is 100 pieces per minute.
Calculate the OEE of this line if it produces total 20,000 pieces and
1000 of them are defected

9. Solution:
Available Time = 8 * 60– 60 =420 Minutes
Availability =
𝟒𝟐𝟎−𝟓𝟎
𝟒𝟐𝟎
X 100 = 88%
Shift hrs 1 hr Break
Down time
Productivity =
𝟐𝟎,𝟎𝟎𝟎/𝟏𝟎𝟎
𝟑𝟕𝟎
× 100 = 54%
Quality =
𝟐𝟎,𝟎𝟎𝟎−𝟏𝟎𝟎𝟎
𝟐𝟎,𝟎𝟎𝟎
× 100 = 95%
OEE= 0.88* 0.54* 0.95
Actual Output Ideal Run Rate
OEE = 45%

10. Thanks!
You can find me at:
Info@hassanmortada.com
Or
Click Here
Any questions?