Most plants track output. Almost none track all three OEE components consistently enough to act on them. This free template does the math automatically so you know more by end of week than most facilities learn in a quarter.
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OEE is not just a number, it's a diagnostic. The three components tell you three completely different things about where your production losses are coming from. Availability losses are downtime. Performance losses are slow cycles and micro-stoppages, the machine is running, just not at the right speed. Quality losses are defects and rework. Most manufacturers assume their primary loss is availability, when in reality it's performance, and they've been optimizing for the wrong thing.
Without tracking all three components separately, you can't tell the difference. A facility with 75% Availability, 90% Performance, and 99% Quality has a downtime problem. A facility with 95% Availability, 75% Performance, and 99% Quality has a speed and micro-stoppage problem that looks identical from the outside. OEE breaks down the diagnosis so you can apply the right fix.
Accurate OEE requires accurate inputs and that's where manual tracking consistently breaks down. Planned run time gets estimated. Downtime gets rounded. Ideal cycle time is often set once and never revisited as machines age and processes change. Good parts counts depend on quality records being tied back to specific machines and shifts, which rarely happens consistently in manual systems.
The result is OEE data that's systematically optimistic. Performance losses from slow cycles are nearly impossible to capture manually because the machine appears to be running. The spreadsheet records what was entered, not what actually happened. If your manual OEE says 72%, your actual OEE is probably lower.
Caddis Systems calculates OEE in real time from actual machine data. No manual inputs, no estimation, no lag. Availability is captured directly from machine state monitoring. Cycle time is measured at the individual part level, so Performance reflects what's actually happening on the floor, not what someone estimated at end of shift. Quality data can be integrated from your existing processes. The result is OEE you can trust, updated continuously, visible on dashboards operators and supervisors can see from anywhere. If your OEE today is 55% and Caddis moves it to 65%, that's 10% more throughput from machines you already own without adding a single piece of equipment.