Most manufacturers track output. Fewer track efficiency. And almost none track all three components of OEE consistently enough to use them. This free OEE excel template does the OEE math for you. Enter your planned time, downtime, ideal cycle time, and good parts, and the template calculates Availability, Performance, Quality, and overall OEE automatically. Use it for one machine or your whole floor. Either way, you'll know more about your production efficiency by end of week than most facilities learn in a quarter.
What's Included





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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.
Ditch spreadsheets and manually tracking machine metrics. Try Caddis Systems, an affordable machine monitoring solution that provides real-time machine insights and expert guides to reduce unplanned downtime and increase productivity.
Monitor machine health and performance in real time through continuous tracking of critical metrics — including downtime, utilization, OEE, cycle time, changeover time, and condition data.
Log and timestamp machine downtime events to generate comprehensive reports. Identify the root causes of downtime and develop strategies to minimize disruptions and enhance productivity.
Schedule maintenance tasks proactively to minimize unexpected downtime and extend the lifespan of your machines.
Receive instant notifications via text or email based on live machine data. Act swiftly to avert prolonged downtime, reduce repair expenses, and ensure seamless operations.
Most machine monitoring tools hand you a dashboard and walk away. Caddis comes loaded with battle-tested playbooks — built from years on our own factory floor — so your team knows what to do with the data from day one
Explore Playbooks
Shift from reactive to proactive. Schedule maintenance by actual runtime and cycle counts — not guesswork — so you catch problems before they become expensive emergencies.

Pinpoint your top three downtime causes in the first week. Then systematically eliminate them using a proven root-cause framework your whole team can follow — no analyst required.

Uncover hidden capacity that's already sitting in your shop. Identify idle patterns by shift, operator, and machine — then close the gap with targeted scheduling adjustments.

Move your OEE score from a vanity metric to an action plan. Track availability, performance, and quality together — then follow a weekly cadence to drive measurable gains each month.
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See how Caddis can provide real-time machine insights and expert guides to help improve your plant operations on Day 1.