So, you’ve determined to embark on an general gear effectiveness (OEE) challenge to extend gear effectiveness and develop course of enhancements that maximize efficiencies. You’ve bought your spreadsheets and clipboards prepared (you don’t actually need these, however extra on that later). You’re able to go. Now what?
When used proper, OEE is a strong software that may present beneficial insights into the place to focus enchancment efforts. It’s usually used as a software inside Lean and Six Sigma methodologies and can also be used together with different instruments as a part of an general course of enchancment technique.
What Is OEE?
To get to those insights, it helps to know the OEE KPI calculation and the way it works. OEE is a calculation that tracks totally productive time as a ratio to deliberate manufacturing time. The system for OEE is:
OEE = (Good Rely x Superb Cycle Time) / Deliberate Manufacturing Time
This system yields a quantity that can be utilized as a benchmark for evaluating efficiency throughout industries or from machine to machine. It may be used as a baseline for monitoring the historical past of manufacturing runs to establish course of enhancements or cut back waste in particular property.
What Are the Models of OEE?
There are three items of OEE, together with Availability, Efficiency, and High quality. Every performs a job in arriving on the complete OEE calculation. And every has a calculation to reach at a price for that unit.
Availability
Availability counts the out there run time divided by the full time. This worth signifies that customary course of stops corresponding to changeovers and unplanned stops corresponding to breakdowns are factored in.
Run Time = Deliberate Manufacturing Time – Cease Time
Efficiency
Efficiency captures small stops and slow-downs corresponding to clearing jams, minor cleansing, and coaching points. It’s the place labor impacts the OEE calculation each in high quality and amount.
Efficiency = (Superb Cycle Time x Complete Rely Produced) / Run Time
High quality
The standard side of OEE measures the quantity of in-spec elements over the full quantity produced. It additionally contains reworks as out of spec.
High quality = Good Rely / Complete Rely
So OEE Is…
By breaking down these particular classes, managers can establish issues particular to these areas. It permits them to focus on specific forms of points for enchancment. And whereas the grasp OEE system stays the identical, breaking the metric down into these three parts signifies that insights into underlying causes might be decided.
OEE = Availability x Efficiency x High quality
OEE vs. TEEP
OEE is a widespread software utilized in manufacturing to unlock insights. However others can be utilized as a substitute of or as a complement to OEE and included in evaluation later. One in every of these is Complete Efficient Tools Efficiency (TEEP). On this metric, out there time relies on 24 hours per day for all the yr. It additionally appears to be like at availability, efficiency, and high quality, but it surely considers availability to be a calculation of:
Availability = Precise Manufacturing Time / All Time
This result’s multiplied by high quality and efficiency to ship the TEEP. Utilizing TEEP together with OEE can render a deeper manufacturing evaluation and permit for higher forecasting and stronger enchancment insights.
OEE, IoT, and Manufacturing Software program
Again to these spreadsheets and clipboards. OEE is highly effective both as a standalone software or when used with others corresponding to TEEP. As a part of a finest practices methodology corresponding to Lean and Six Sigma, it could actually unlock insights to enhance processes and improve effectivity. However why cease there?
Simply because an organization can observe OEE manually, why ought to they? With software program for good manufacturing platforms, ERP, MRP, and MES, OEE might be totally automated. Because of this availability, efficiency, and high quality can make the most of superior analytics capabilities in real-time. And that very same software program can observe a number of KPIs for OEE, TEEP, and extra.
When mixed with IoT expertise embedded in gear or retrofitted and communicated to the cloud, this mixture of metrics and the evaluation on the platform can unlock deeper insights and extra correct situations for higher decision-making and course of enhancements.
In case you’d wish to be taught extra about ditching your spreadsheets and conducting world-class OEE in your organization, then let’s begin the dialog.
