Overall Equipment Effectiveness (OEE) is a measure of the efficiency and productivity of a manufacturing process or system. It is calculated by taking into account three factors: availability, performance, and quality.
Availability refers to the percentage of time that a piece of equipment is available for production. It is calculated by dividing the actual run time by the total time available for production.
Performance refers to the speed at which a piece of equipment is operating compared to its maximum potential speed. It is calculated by dividing the actual output by the maximum potential output.
Quality refers to the percentage of good parts produced by a piece of equipment. It is calculated by dividing the number of good parts by the total number of parts produced.
OEE is calculated using the following formula:
OEE = (Availability x Performance x Quality)
The higher the OEE, the more efficient and productive the process or system is considered to be. For example, an OEE of 85% would indicate that the process or system is operating at 85% efficiency and productivity.
There are several factors that can affect OEE, including equipment downtime, unplanned stops, and slow production rates. By understanding and managing these factors, it is possible to improve the OEE of a process or system and increase its efficiency and productivity.
OEE is a useful tool for identifying areas for improvement in a manufacturing process or system and for tracking progress over time. It is often used in conjunction with other lean manufacturing techniques, such as total productive maintenance (TPM), to continuously improve efficiency and productivity.
In summary, overall equipment effectiveness (OEE) is a measure of the efficiency and productivity of a manufacturing process or system, calculated by taking into account availability, performance, and quality. The higher the OEE, the more efficient and productive the process or system is considered to be. OEE is a useful tool for identifying areas for improvement in a manufacturing process or system and for tracking progress over time.
