How to calculate OEE (Overall Equipment Effectiveness)

 

✔️Step 1: Check how much time you had to produce.
⚖️This is your Planned Production Time (Your Shift is 8 hour = 480 Minutes)

✔️Step 2: Subtract any Downtime.
⏱️If the machine was down for repairs or setup, subtract that from the total time.
💥 Example: 480 minutes – 60 minutes of downtime = 420 minutes of actual running hour.

✔️Step 3: See how fast your machine should be running.
👥 Ask: How many parts should it make in perfect conditions?
🌱 Example: If it makes 1 part per minute, in 420 minutes it should make 420 parts.

✔️Step 4: Check how many parts it actually made.
🏁 Maybe it made 380 parts instead of 420. So, it Wasn’t running at full speed.

✔️Step 5: Check how many of those parts were good.
📊 If only 360 out of 380 were good, then some were defective.

✔️Step 6: Now think about this.
☀️You had time to make 480 perfect parts.
✨But you only made 360 good ones. `
👉 So, your effectiveness is 360 out of 480. That’s your OEE.