OEE for maintenance teams: what you control and what you don’t
Overall equipment effectiveness is a production number, but maintenance drives a big part of it. Here is how to read it from the maintenance side.
SilinX Editorial Team
OEE (overall equipment effectiveness) combines three things: availability (was the equipment running when it should be?), performance (was it running at the right speed?) and quality (did it make good product?). Multiply the three and you get one percentage.
Where maintenance shows up
Availability is where maintenance has the most direct influence. Breakdowns, slow repairs and long changeovers all pull it down. Performance is affected too: worn parts, misalignment and small stops can make equipment run slower than it should.
Where maintenance does not
Material shortages, scheduling, operator training and product mix also affect OEE. Before you take the blame for a low number, break it down and see which part is really low and why.
Use losses, not just the score
The single OEE number is less useful than the list of losses behind it. Record downtime with a reason each time. Over a few weeks, the top reasons will tell you exactly which maintenance problems are worth solving first.
Work with production
OEE is shared. Review it together with production regularly, agree on the top losses, and own the ones that belong to maintenance. Shared numbers build trust between the teams.
- OEE = availability × performance × quality.
- Maintenance mainly drives availability and part of performance.
- Record downtime with reasons to find the biggest losses.
- Review OEE together with production.