Part counter

Many factories use a part counter to see whether a machine is running and how many units it produces.

That can be useful. But it can also mislead you if it becomes the way you judge production.

Why a part counter can be misleading

A machine can look like it is running fine and still produce too slowly.

If operators can adjust the machine's speed, uptime alone can give you a false picture of efficiency:

• the machine is technically running
• it may still make fewer units than expected
• productivity looks better than it really is

That is the big weakness of looking only at the part counter.

Why OEE gives a better picture

OEE is a more useful metric because it combines:

• availability
• performance
• quality

That shows you whether the machine is actually producing effectively, not just whether it is running.

Where a part counter still helps

You don't need to throw the part counter out.

It is still good for:

• counting produced units
• seeing how long the machine has run
• planning maintenance

The point is that a part counter is a useful input. But on its own, it can't tell you how well your production is performing.