“Is my machine utilization high?” is one of the questions owners ask most. But many people’s idea of “utilization” is just “is the machine moving” — as long as it is not stopped, it counts as high. That measure badly overstates your real capacity. The internationally standard OEE (Overall Equipment Effectiveness) is actually the product of three things: availability × performance × quality. If any one falls, the whole falls — none can be skipped.
The first part, availability: the share of “time it should be producing” that the machine actually runs. Changeovers, waiting for material, waiting for repair, no one to start it — these invisible stoppages all steal from this number. Many factories assume a machine runs 20 hours a day; after deducting these scattered stops, real producing time may be only 14.
The second part, performance: the machine’s actual output speed against the speed it was “designed” to hit. Aging equipment, conservative parameters, unfamiliar operators all make it run below standard — it looks busy, but output shrinks. The third part, quality: how much of what is made is good. However fast you run, if 30% needs rework or scrap, that capacity is wasted. Multiply the three, and you get this machine’s truly effective output — usually a good deal lower than an owner’s gut estimate.
The point of splitting the three is to show where to improve first. Two lines both at 60% OEE — one may be stuck on long changeovers (availability), the other on unstable quality — and the fixes are completely different. So instead of asking “is utilization high,” ask “what are my three parts, separately.” Want to measure these three live on your own machines and see which to fix first? Book a consultation.