OEE for the optimization of production services
OEE (Overall Equipment Effectiveness) is a well-known indicator within the TPM (Total Productive Maintenance) concept. It serves as a measure to identify, monitor and optimize availability, performance and quality in relation to the production process.
With the help of measurable KPIs, the SAP ME / MII-based OEE serves to have production services comprehensively in view at all times and to recognize where and why performance losses occur. An order-related profitability calculation can be carried out and goal-oriented countermeasures can be implemented quickly and effectively.
OEE 4.0 at a glance
The term Overall Equipment Effectiveness (OEE) refers to a key figure created by the Japan Institute of Plant Maintenance. It is one of the results of decades of development of the TPM concept (TPM: Total Productive Maintenance).
The Overall Equipment Effectiveness (OEE) measures the actual effectiveness of a plant, by setting the error-free output quantity in relation to the maximum possible quantity. The OEE key figure is made up of the plant, the degree of efficiency and the degree of quality. OEE is a measure of the added value of a plant and allows the operator a further economic view of technical installations.
Key figures such as OEE, throughput, level of setup or occupancy level (capacity) are always up-to-date in automated data entry. The analysis of production units, individual products, time periods, types of errors and sources of errors results in goal-oriented optimization options. The losses in time, performance and quality reduce the effectiveness. Since these sources of loss influence each other, holistic optimization is necessary. In summary, the measurement of overall equipment effectiveness provides a holistic instrument that permanently monitors the effectiveness of the equipment, enabling a fast, targeted response to losses.
Holistic means that all areas of the company are involved. For example, logistics is crucial for the timely provision and supply of raw materials, maintenance is responsible for the trouble-free operation of the plants, and quality management is responsible for faultless products.
OEE 4.0 creates more effectiveness
- Online monitoring of overall system availability
- Detailed reporting on availability, performance and quality
- Automatic data acquisition and assignment
- Creation of transparency of machine utilization times
- Basis for holistic process optimization (TPM)
- Comprehensive analysis and reporting functions (total, order, shift, …)
- Active support during maintenance and service (standstill analyses, ABC fault classification, …)
- Holistic acquisition and analysis of loss sources
- Derivation of concrete, targeted measures
- Review of effectiveness of measures taken